TPS3820-50QDBVRQ1中文资料
[工作]TPS7A1601QDGNRQ1_中文资料
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降压芯片tps7a1601一芯片用途E-Bike现场发送器:温度传感器/控制器压力传感器电池管理 HEV多节电池组车辆黑匣子数字音频广播电机控制:AC感应车用信息娱乐高级驾驶员辅助系统(ADAS)摄像机二主要参数输入电压:3V--60V超低静态电流:5uA输出电流:100mA精度:2%固定输出电压:3.3V 5V可调输出电压:-1.2V—18.5V稳定的输出陶瓷电容:≥2.2uF内部软启动绝对最大额定参数引脚说明DELAY: 延时端与GND之间连接一个电容来调整PG的延时时间,当复位功能不用时延时保持EN:使能端用于开关芯片:当VEN≥ VEN_HI时,芯片使能;当VEN≤ VEN_LO时,芯片停止工作。
FB/DNC:用于可调版本 FB端是control_loop误差运放的输入端。
当芯片的输出电压由外部电阻设置后,该脚用于设置芯片的输出电压。
当选用固定电压输出版本时:该引脚悬空。
禁止将该脚接入电子网络,哪怕是GND和IN。
GND:o.OIN:芯片的输入端一个值大于0.1uF的电容必须从该脚引到GND来确保稳定性。
建议使用10uF的陶瓷电容(尽可能靠近芯片)来减小电流灵敏度,尤其是当遇到高源阻抗或是长输入示踪剂(long input tracer)时。
NC:该脚可以保持开闭或者连接GND跟IN之间的任意电压。
OUT:芯片的输出端一个不小于2.2uF的电容必须从该脚接地来确保工作的稳定性。
建议使用10uF的陶瓷电容(尽可能靠近芯片)来是效能最大化。
PG:Power_good 集电极开路的输出端,保持开闭或者当PG功能不用时接地。
Thermal pad:虽然可以悬空,但是强烈建议接地关于power good:(该注释来自于百度)Power good 信号简称 P.G 或P.OK信号。
该信号是直流输出电压检测信号和交流输入电压检测信号的逻辑与TTL信号兼容。
当电源接通之后.如果输入交流电压在额定工作范围之内.且各路直流输出电压也已达到它们的最低检测电平 (+5V输出为4.75V以上).那么经过100ms~500m 的延时.P.G电路发出“电源正常”的信号(PowerGood或P.0K为高电平)。
3820解说词

3820解说词
大家好,今天我为大家带来了对3820的解说词。
3820是一种新型的产品,它拥有多种功能和用途,能够满足不同人群
的需求。
首先,3820具备强大的处理能力和高效的存储空间,可以运
行各种复杂的应用程序和存储大量的数据。
3820还提供了非常方便的通信功能,支持多种通信方式,如语音通话、视频通话和短信。
无论是家庭,还是商业用户,都可以通过3820与亲
朋好友进行沟通,或者与合作伙伴进行业务洽谈。
此外,3820还内置了多种实用工具和应用程序,能够帮助用户提高工
作效率和生活便利。
例如,它提供了日历、闹钟、备忘录等实用工具,让用户能够更好地组织自己的时间和任务。
3820还注重用户的隐私和安全,采用了多种安全措施保护用户的个人
信息和设备安全。
用户可以放心使用3820,享受便捷的功能同时保证
个人信息的安全。
总体而言,3820是一款功能强大、多用途且安全可靠的产品。
无论是
职场人士、学生,还是普通家庭用户,都能够从3820中找到适合自己
的功能和应用。
感谢大家的聆听,谢谢!。
Richtek技术公司RT8290高效同步步进DC DC转换器产品说明书

RT8290®©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Design Tools Sample &BuyGeneral DescriptionThe RT8290 is a high efficiency synchronous step-down DC/DC converter that can deliver up to 3A output current from 4.5V to 23V input supply. The RT8290's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RT8290 also provides output under voltage protection and thermal shutdown protection. The low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT8290is awailable in an SOP-8 (Exposed Pad) package.3A, 23V, 340kHz Synchronous Step-Down ConverterFeatures●4.5V to 23V Input Voltage Range●1.5% High Accuracy Feedback Voltage ●3A Output Current●Integrated N-MOSFET Switches ●Current Mode Control●Fixed Frequency Operation : 340kHz ●Output Adjustable from 0.925V to 20V ●Up to 95% Efficiency●Programmable Soft-Start●Stable with Low-ESR Ceramic Output Capacitors ●Cycle-by-Cycle Over Current Protection ●Input Under Voltage Lockout ●Output Under Voltage Protection ●Thermal Shutdown Protection●Thermally Enhanced SOP-8 (Exposed Pad) Package ●RoHS Compliant and Halogen FreeApplications●Industrial and Commercial Low Power Systems ●Computer Peripherals ●LCD Monitors and TVs●Green Electronics/Appliances●Point of Load Regulation of High-Performance DSPs,FPGAs and ASICs.Ordering InformationNote :Richtek products are :❝ RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.❝ Suitable for use in SnPb or Pb-free soldering processes.Pin Configurations(TOP VIEW)SOP-8 (Exposed Pad)SS BOOT VIN GNDSW FBEN COMPTypical Application CircuitOUT V G : Green (Halogen Free and Pb Free)Z : ECO (Ecological Element with Halogen Free and Pb free)RT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.RT8290GSP : Product NumberYMDNN : Date CodeFunctional Pin DescriptionRT8290ZSP : Product NumberYMDNN : Date CodeRT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Function Block DiagramAbsolute Maximum Ratings (Note 1)●Supply Voltage, V IN ------------------------------------------------------------------------------------------−0.3V to 25V●Switching Voltage, SW -------------------------------------------------------------------------------------−0.3V to (V IN + 0.3V)●SW (AC) 30ns-------------------------------------------------------------------------------------------------−5V to 30V●BOOT Voltage -------------------------------------------------------------------------------------------------(V SW − 0.3V) to (V SW + 6V)●The Other Pins ------------------------------------------------------------------------------------------------−0.3V to 6V ●Power Dissipation, P D @ T A = 25°CSOP-8 (Exposed Pad)--------------------------------------------------------------------------------------1.333W ●Package Thermal Resistance (Note 2)SOP-8 (Exposed Pad), θJA ---------------------------------------------------------------------------------75°C/W SOP-8 (Exposed Pad), θJC --------------------------------------------------------------------------------15°C/W ●Junction T emperature ----------------------------------------------------------------------------------------150°C ●Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------260°C●Storage T emperature Range -------------------------------------------------------------------------------−65°C to 150°C ●ESD Susceptibility (Note 3)HBM (Human Body Model)---------------------------------------------------------------------------------2kV MM (Machine Model)----------------------------------------------------------------------------------------200VRecommended Operating Conditions (Note 4)●Supply Voltage, V IN ------------------------------------------------------------------------------------------4.5V to 23V ●Enable Voltage, V EN -----------------------------------------------------------------------------------------0V to 5.5V●Junction T emperature Range -------------------------------------------------------------------------------−40°C to 125°C ●Ambient T emperature Range -------------------------------------------------------------------------------−40°C to 85°CRT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Note 1. Stresses beyond those listed “Absolute Maximum Ratings ” may cause permanent damage to the device. These arestress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability.Note 2. θJA is measured at T A = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC ismeasured at the exposed pad of the package.Note 3. Devices are ESD sensitive. Handling precaution is recommended.Note 4. The device is not guaranteed to function outside its operating conditions.Electrical Characteristics(V = 12V, T = 25°C unless otherwise specified)RT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Typical Operating CharacteristicsReference Voltage vs. Temperature0.9100.9150.9200.9250.9300.9350.940-50-25255075100125Temperature (︒C)R e f e r e n c e V o l t a g e (V)Reference Voltage vs. Input Voltage0.9200.9220.9240.9260.9280.9300.9324681012141618202224Input Voltage (V)R e f e r e n c e V o l t a g e (V )Frequency vs. Temperature300305310315320325330335340345350-50-25255075100125Temperature (︒C)F r e q u e n c y (k H z )Frequency vs. Input Voltage3003053103153203253303353403453504681012141618202224Input Voltage (V)F r e q u e n cy (k H z )Output Voltage vs. Output Current3.3003.3033.3053.3083.3103.3133.3153.3183.32000.511.522.53Output Current (A)O u t p u t V o l t a g e (V)Efficiency vs. Output Current010203040506070809010000.511.522.53Output Current (A)E f f i c i e n c y (%)RT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Current Limit vs. Temperature3.03.54.04.55.05.56.06.57.0-50-25255075100125Temprature ( C)C u r r e n t L i m i t (A)Load Transient ResponseTime (100μs/Div)I OUT (2A/Div)V OUT(200mV/Div)V IN = 12V, V OUT = 3.3V, I OUT = 0A to 3ATime (5ms/Div)Power On from VIN I L (2A/Div)V IN = 12V, V OUT = 3.3V, I OUT = 3AV IN (5V/Div)V OUT (2V/Div)Power Off from VINTime (5ms/Div)I L (2A/Div)V IN (5V/Div)V OUT (2V/Div)V IN = 12V, V OUT = 3.3V, I OUT = 3ASwitching WaveformTime (1μs/Div)V OUT (10mV/Div)V SW (10V/Div)V IN = 12V, V OUT = 3.3V, I OUT = 3AI L (2A/Div)Load Transient ResponseTime (100μs/Div)I OUT (2A/Div)V OUT(200mV/Div)V IN = 12V, V OUT = 3.3V, I OUT = 1.5A to 3ART8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Power On from ENTime (10ms/Div)V IN = 12V, V OUT = 3.3V, I OUT = 3AI OUT (2A/Div)V EN (2V/Div)V OUT (2V/Div)Power Off from ENTime (10ms/Div)I OUT (2A/Div)V EN (2V/Div)V OUT (2V/Div)V IN = 12V, V OUT = 3.3V, I OUT = 3ART8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Application InformationThe RT8290 is a synchronous high voltage buck converter that can support the input voltage range from 4.5V to 23V and the output current can be up to 3A.Output Voltage SettingThe resistive voltage divider allows the FB pin to sense the output voltage as shown in Figure 1.Figure 1. Output Voltage SettingThe output voltage is set by an external resistive voltage divider according to the following equation :⎛⎫+ ⎪⎝⎭OUT FB R1V = V 1R2where V FB is the feedback reference voltage (0.925V typ.).External Bootstrap DiodeConnect a 10nF low ESR ceramic capacitor between the BOOT pin and SW pin. This capacitor provides the gate driver voltage for the high side MOSFET.It is recommended to add an external bootstrap diode between an external 5V and the BOOT pin for efficiency improvement when input voltage is lower than 5.5V or duty ratio is higher than 65%. The bootstrap diode can be a low cost one such as 1N4148 or BAT54.The external 5V can be a 5V fixed input from system or a 5V output of the RT8290. Note that the external boot voltage must be lower than 5.5V.Figure 2. External Bootstrap DiodeSoft-StartThe RT8290 contains an external soft-start clamp that gradually raises the output voltage. The soft-start timingInductor SelectionThe inductor value and operating frequency determine the ripple current according to a specific input and output voltage. The ripple current ΔI L increases with higher V IN and decreases with higher inductance.OUT OUT L IN V V I =1f L V ⎡⎤⎡⎤∆⨯-⎢⎥⎢⎥⨯⎣⎦⎣⎦Having a lower ripple current reduces not only the ESR losses in the output capacitors but also the output voltage ripple. High frequency with small ripple current can achieve highest efficiency operation. However, it requires a large inductor to achieve this goal.For the ripple current selection, the value of ΔI L = 0.2375(I MAX ) will be a reasonable starting point. The largest ripple current occurs at the highest V IN . To guarantee that the ripple current stays below the specified maximum, the inductor value should be chosen according to the following equation :OUT OUT L(MAX)IN(MAX)V V L =1f I V ⎡⎤⎡⎤⨯-⎢⎥⎢⨯∆⎣⎦⎣⎦Inductor Core SelectionThe inductor type must be selected once the value for L is known. Generally speaking, high efficiency converters can not afford the core loss found in low cost powdered iron cores. So, the more expensive ferrite or mollypermalloy cores will be a better choice.The selected inductance rather than the core size for a fixed inductor value is the key for actual core loss. As the inductance increases, core losses decrease. Unfortunately,increase of the inductance requires more turns of wire and therefore the copper losses will increase.Ferrite designs are preferred at high switching frequency due to the characteristics of very low core losses. So,design goals can focus on the reduction of copper loss and the saturation prevention.can be programmed by the external capacitor between SS pin and GND. The chip provides a 6μA charge current for the external capacitor. If a 0.1μF capacitor is used to set the soft-start, the period will be 15.5ms (typ.).V OUTRT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Ferrite core material saturates “hard ”, which means that inductance collapses abruptly when the peak design current is exceeded. The previous situation results in an abrupt increase in inductor ripple current and consequent output voltage ripple.Do not allow the core to saturate!Different core materials and shapes will change the size/current and price/current relationship of an inductor.T oroid or shielded pot cores in ferrite or permalloy materials are small and do not radiate energy. However, they are usually more expensive than the similar powdered iron inductors. The rule for inductor choice mainly depends on the price vs. size requirement and any radiated field/EMI requirements.C IN and C OUT SelectionThe input capacitance, C IN, is needed to filter the trapezoidal current at the source of the high side MOSFET .To prevent large ripple current, a low ESR input capacitor sized for the maximum RMS current should be used. The RMS current is given by :This formula has a maximum at V IN = 2V OUT , whereI RMS = I OUT /2. This simple worst-case condition is commonly used for design because even significant deviations do not offer much relief.Choose a capacitor rated at a higher temperature than required. Several capacitors may also be paralleled to meet size or height requirements in the design.For the input capacitor, a 10μF x 2 low ESR ceramic capacitor is recommended. For the recommended capacitor, please refer to table 3 for more detail.The selection of C OUT is determined by the required ESR to minimize voltage ripple.Moreover, the amount of bulk capacitance is also a key for C OUT selection to ensure that the control loop is stable.Loop stability can be checked by viewing the load transient response as described in a later section.The output ripple, ΔV OUT, is determined by :RMS OUT(MAX)I = I OUT L OUT 1V I ESR 8fC ⎡⎤∆≤∆+⎢⎥⎣⎦The output ripple will be highest at the maximum input voltage since ΔI L increases with input voltage. Multiplecapacitors placed in parallel may be needed to meet the ESR and RMS current handling requirement. Dry tantalum,special polymer, aluminum electrolytic and ceramic capacitors are all available in surface mount packages.Special polymer capacitors offer very low ESR value.However, it provides lower capacitance density than other types. Although Tantalum capacitors have the highest capacitance density, it is important to only use types that pass the surge test for use in switching power supplies.Aluminum electrolytic capacitors have significantly higher ESR. However, it can be used in cost-sensitive applications for ripple current rating and long term reliability considerations. Ceramic capacitors have excellent low ESR characteristics but can have a high voltage coefficient and audible piezoelectric effects. The high Q of ceramic capacitors with trace inductance can also lead to significant ringing.Higher values, lower cost ceramic capacitors are now becoming available in smaller case sizes. Their high ripple current, high voltage rating and low ESR make them ideal for switching regulator applications. However, care must be taken when these capacitors are used at input and output. When a ceramic capacitor is used at the input and the power is supplied by a wall adapter through long wires, a load step at the output can induce ringing at the input, V IN . At best, this ringing can couple to the output and be mistaken as loop instability. At worst, a sudden inrush of current through the long wires can potentially cause a voltage spike at V IN large enough to damage the part.Checking Transient ResponseThe regulator loop response can be checked by looking at the load transient response. Switching regulators take several cycles to respond to a step in load current. When a load step occurs, V OUT immediately shifts by an amount equal to ΔI LOAD (ESR) and C OUT also begins to be charged or discharged to generate a feedback error signal for the regulator to return V OUT to its steady-state value. During this recovery time, V OUT can be monitored for overshoot or ringing that would indicate a stability problem.RT8290©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Thermal ConsiderationsFor continuous operation, do not exceed the maximum operation junction temperature 125°C. The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient.The maximum power dissipation can be calculated by following formula :P D(MAX) = (T J(MAX) − T A ) / θJAwhere T J(MAX) is the maximum operation junction temperature, T A is the ambient temperature and the θJA is the junction to ambient thermal resistance.For recommended operating conditions specification, the maximum junction temperature is 125°C. The junction to ambient thermal resistance θJA is layout dependent. For SOP-8 (Exposed Pad) package, the thermal resistance θJA is 75°C/W on the standard JEDEC 51-7 four-layers thermal test board. The maximum power dissipation at T A = 25°C can be calculated by following formula :P D(MAX) = (125°C − 25°C) / (75°C/W) = 1.333W for SOP-8 (Exposed Pad) packageThe maximum power dissipation depends on operating ambient temperature for fixed T J(MAX) and thermal resistance θJA . The derating curve in Figure 3 allows the designer to see the effect of rising ambient temperature on the maximum power dissipation.Layout ConsiderationsFollow the PCB layout guidelines for optimal performance of the RT8290.❝Keep the traces of the main current paths as short and wide as possible.❝Put the input capacitor as close as possible to the device pins (VIN and GND).❝SW node is with high frequency voltage swing and should be kept in a small area. Keep sensitive components away from the SW node to prevent stray capacitive noise pick-up.❝Place the feedback components as close to the FB pin and COMP pin as possible.❝The GND pin and Exposed Pad should be connected to a strong ground plane for heat sinking and noise protection.Figure 3. Derating Curve of Maximum Power DissipationInput capacitor must be placed Figure 4. PCB Layout Guide0.00.20.40.60.81.01.21.41.6255075100125Ambient Temperature (°C)M a x i m u m P o w e r D i s s i p a t i o n (W )RT829011DS8290-04 October 2016 ©Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Table 3. Suggested Capacitors for Cand CRT829012DS8290-04 October 2016Richtek Technology Corporation14F, No. 8, Tai Yuen 1st Street, Chupei CityHsinchu, Taiwan, R.O.C.Tel: (8863)5526789Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notice at any time. Customers should obtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Richtek or its subsidiaries.Outline DimensionBFHMI(Bottom of Package)8-Lead SOP (Exposed Pad) Plastic Package。
无线高低压钳形电流表技术参数

无线高低压钳形电流表技术参数无线高低压钳形电流表技术参数功能高压交流电流测量,低压交流电流、漏电流测量,在线交流电流监测电源DC6V 碱性干电池(1.5V AAA×4)测试方式钳形CT,积分方式传输方式无线传送,直线传输最大距离约30m显示模式4位LCD显示,背光功能,适合昏暗场所LCD尺寸47mm×28.5mm仪表尺寸宽高厚:76mm×255mm×31mm钳口尺寸φ48mm采样速率约2次/秒测量范围0.1mA~1000A(50/60Hz自动)分辨率0.1mA换档0.1mA~1000A全自动换档测试精度(23℃±5℃,80%RH以下)0.1mA~299mA: ±1%±3dgt 0.30A~9.99A: ±1.5%±5dgt 10.0A~199.9A: ±2%±5dgt 200A~399A: ±2.5%±5dgt 400A~600A: ±3%±5dgt601A~1000A: ±4%±5dgt线路电压60KV以下线路测试(带5节绝缘杆操作)99组,存储过程中“MEM”符号指示,“FULL”符号闪烁显数据存储示表示存储已满自动保持高处的测试值,通常测试模式下长按HOLD键至PEAK PEAK保持灯亮,即开启PEAK保持功能数据保持通常测试模式下按HOLD键保持数据,“HOLD”符号显示数据查阅“MR”符号指示,能上下翻阅所存数据溢出显示超量程溢出功能:“OL A”符号显示无信号指示当接收器没有收到发射信号时动态显示“no- -”符号自动关机开机约15分钟后,仪表自动关机,以降低电池消耗电池电压当电池电压低于4.8V时,电池电压低符号显示,提醒更换电池检测仪:约335g(含电池),仪表总质量:约2.5Kg(含绝缘仪表质量杆和电池)工作温湿度-25℃~40℃;80%Rh以下存放温湿度-10℃~60℃;70%Rh以下绝缘杆尺寸φ32mm,1m/节(5节)绝缘强度AC 100kV/rms (第5节绝缘杆与高压电流钳钳芯之间)结构防滴漏Ⅱ型。
DH3820

DH3820是高速静态应变数据采集仪,最高采样频率100Hz,广泛应用于疲劳试验、伪动力试验,能捕捉材料由弹性区域进入塑性区域整个过程的缓变信号。
除采集应力应变信号外,还可采集电压、位移、温度等物理量。
该产品适合在各种现场进行测量试验,被国内众多的高校和知名研究检测机构广泛采用。
1.1 应用范围1.1.1 跟据测量方案,完成全桥、半桥、1/4桥(三线制)状态的准动态应力应变的多点巡回检测;1.1.2 配合各种桥式传感器,实现压力、力、荷重、位移等物理量的多点巡回检测;1.1.3 接入热电偶和热电阻传感器进行温度测量;1.1.4 对小于5V的电压信号进行巡回检测,分辨率可达5μV。
1.2 特点1.2.1 按需组合采集模块,既可组成分布式测量系统,也可构建机架式大型测试系统;1.2.2 通过CAN总线传输数据,可实时进行采样、传送、存盘、显示;1.2.3 采用进口接插件,使用方便可靠;1.2.4 最高采样率100Hz,满足应变、电压、温度、位移等缓变信号测量;1.2.5 支持外接直流电源供电,方便现场使用;1.2.6 具有导线电阻测量和自动修正功能;1.2.7 多种桥路方式程控切换:通过软件程控设置全桥、半桥、1/4桥(三线制自补偿)的状态,使用方便灵活,操作简单;1.2.8 桥路自检功能:能够准确判断桥路的短路、开路等故障,方便实验现场状态检查和故障排除;1.2.9 通道自检功能:内置标准应变源,方便现场检查仪器各通道状态。
1.3 系统组成1.3.1 DH3820与部分传感器的连接,如图1所示:图1 仪器与传感器连接1.3.2 单台连接,如图2所示:图2 单台与计算机连接1.3.3 多台组网连接:一个电源模块可以控制8个采集模块,一台计算机可以控制32个电源模块,通过网络技术,可以达到无限通道扩展。
如图3所示:图3 多台并行工作1.4 硬件功能1.4.1 以太网传输,即插即用,模块与计算机通过以太网相连,既可单独工作也可通过以太网多台并行工作,网线扩展的方式简单方便,传输数据稳定;1.4.2 先进的隔离技术和合理的接地,使系统具有极强的抗干扰能力,用于各种工程现场的检测;1.4.3 可设置任意一个测点作为补偿测点。
TPS3823中文资料

元器件交易网IMPORTANT NOTICETexas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinueany product or service without notice, and advise customers to obtain the latest version of relevant informationto verify, before placing orders, that information being relied on is current and complete. All products are soldsubject to the terms and conditions of sale supplied at the time of order acknowledgement, including thosepertaining to warranty, patent infringement, and limitation of liability.TI warrants performance of its semiconductor products to the specifications applicable at the time of sale inaccordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extentTI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarilyperformed, except those mandated by government requirements.CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OFDEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICALAPPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, ORWARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHERCRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TOBE FULLY AT THE CUSTOMER’S RISK.In order to minimize risks associated with the customer’s applications, adequate design and operatingsafeguards must be provided by the customer to minimize inherent or procedural hazards.TI assumes no liability for applications assistance or customer product design. TI does not warrant or representthat any license, either express or implied, is granted under any patent right, copyright, mask work right, or otherintellectual property right of TI covering or relating to any combination, machine, or process in which suchsemiconductor products or services might be or are used. TI’s publication of information regarding any thirdparty’s products or services does not constitute TI’s approval, warranty or endorsement thereof.Copyright © 1999, Texas Instruments Incorporated。
OTC3820

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INA193AQDBVRQ1;中文规格书,Datasheet资料

FEATURES APPLICATIONS DESCRIPTIONV –16IN+INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1 SBOS366C–AUGUST2006–REVISED OCTOBER2008CURRENT SHUNT MONITORS–16-V to+80-V Common-Mode Range•Welding Equipment•Qualified for Automotive Applications•Notebook Computers•Wide Common-Mode Voltage:•Cell Phones–16V to+80V•Telecom Equipment•Low Error:3.0%Over Temperature(Max)•Automotive•Bandwidth:Up to500kHz•Power Management•Three Transfer Functions Available:•Battery Chargers20V/V,50V/V,and100V/V•Complete Current-Sense SolutionThe INA193A–INA198A family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from–16V to+80V,independent of the INA19xA supply voltage.They are available with three output voltage scales:20V/V,50V/V,and100V/V.The500-kHz bandwidth simplifies use in current control loops.The INA193A–INA195A provide identical functions but alternative pin configurations to the INA196A–INA198A,respectively.The INA193A–INA198A operate from a single2.7-V to18-V supply.They are specified over the extended operating temperature range(–40°C to125°C),and are offered in a space-saving SOT-23package.Please be aware that an important notice concerning availability,standard warranty,and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.PRODUCTION DATA information is current as of publication date.Copyright©2006–2008,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas12345V+V IN–V IN+GND OUTINA193A INA194A INA195A DBV PACKAGE (TOP VIEW)12345V IN–V IN+V+GND OUTINA196A INA197A INA198A DBV PACKAGE (TOP VIEW)ABSOLUTE MAXIMUM RATINGS (1)INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1SBOS366C–AUGUST 2006–REVISED OCTOBER This integrated circuit can be damaged by ESD.Texas Instruments recommends that all integrated circuits be handled with appropriate precautions.Failure to observe proper handling and installation procedures can cause damage.ESD damage can range from subtle performance degradation to complete device failure.Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.ORDERING INFORMATION (1)T APACKAGE (2)ORDERABLE PART NUMBER TOP-SIDE MARKING INA193AQDBVRQ1BOG INA194AQDBVRQ1BOH INA195AQDBVRQ1BOI –40°C to 125°CSOT-23–DBVReel of 3000INA196AQDBVRQ1BOJ INA197AQDBVRQ1BOK INA198AQDBVRQ1BOL(1)For the most current package and ordering information,see the Package Option Addendum at the end of this document,or see the website at .(2)Package drawings,standard packing quantities,thermal data,symbolization,and PCB design guidelines are available at /sc/package.over operating free-air temperature range (unless otherwise noted)MINMAX UNIT Supply voltage18V Differential input voltage range,analog inputs (V IN+–V IN–)–1818V Common-mode voltage range (2)–1680V Analog output voltage range (2)OUTGND –0.3(V+)+0.3V Input current into any pin (2)5mA Storage temperature range –65150°C Junction temperature150°C Human-Body Model4000ESD qualification ratingsMachine Model 200VCharged-Device Model1000(1)Stresses beyond those listed under "absolute maximum ratings"may cause permanent damage to the device.These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions"is not implied.Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2)Input voltage at any pin may exceed the voltage shown if the current at that pin is limited to 5mA.2Submit Documentation Feedback Copyright ©2006–2008,Texas Instruments IncorporatedELECTRICAL CHARACTERISTICS INA193A-Q1,INA194A-Q1,INA195A-Q1 INA196A-Q1,INA197A-Q1,INA198A-Q1 SBOS366C–AUGUST2006–REVISED OCTOBER2008 V S=12V,V IN+=12V,V SENSE=100mV(unless otherwise noted)Full range T A=–40°C to125°CPARAMETER TEST CONDITIONS T A MIN TYP MAX UNITINPUT(V S–0.2)/V SENSE Full-scale input voltage V SENSE=V IN+−V IN–25°C0.15VGainVCM Common-mode input Full range–1680VV IN+=−16V to+80V25°C8094CMR Common-mode rejection dBV IN+=12V to80V Full range10012025°C±0.52V OS Offset voltage,RTI mVFull range0.53dV OS/dT Offset voltage vs temperature Full range 2.5µV/°COffset voltage vs V S=2.7V to18V,PSR Full range5100µV/V power supply V IN+=18VI B Input bias current V IN–pin Full range±8±23µA OUTPUT(V SENSE≥20mV)INA193A,INA196A20G Gain INA194A,INA197A25°C50V/VINA195A,INA198A10025°C±0.2±1 Gain error V SENSE=20mV to100mV%Full range±225°C±0.75±2.2 Total output error(1)%Full range±1±3 Nonlinearity error V SENSE=20mV to100mV25°C±0.002±0.1%R O Output impedance25°C 1.5ΩMaximum capacitive load No sustained oscillation25°C10nF OUTPUT(V SENSE<20mV)(2)–16V≤V CM<0300All devices mVV S<V CM≤80V300INA193A,0.4INA196AV OUT Output voltage25°CINA194A,0V≤V CM≤V S,1VINA197A V S=5VINA195A,2INA198AVOLTAGE OUTPUT(3)Swing to V+power-supply rail R L=100kΩto GND Full range V+–0.1V+–0.2VSwing to GND(4)R L=100kΩto GND Full range V GND+3V GND+50mV(1)Total output error includes effects of gain error and V OS.(2)For details on this region of operation,see Accuracy Variations as a Result of V SENSE and Common-Mode Voltage in ApplicationsInformation.(3)See Typical Characteristics curve Output Swing vs Output Current.(4)Specified by designCopyright©2006–2008,Texas Instruments Incorporated Submit Documentation Feedback3INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1SBOS366C–AUGUST2006–REVISED ELECTRICAL CHARACTERISTICS(continued)V S=12V,V IN+=12V,V SENSE=100mV(unless otherwise noted)Full range T A=–40°C to125°CPARAMETER TEST CONDITIONS T A MIN TYP MAX UNIT FREQUENCY RESPONSEINA193A,500INA196AINA194A,BW Bandwidth C LOAD=5pF25°C300kHzINA197AINA195A,200INA198APhase margin C LOAD<10nF25°C40°SR Slew rate1V/µsV SENSE=10mV to100mV PP,t s Settling time(1%)25°C2µsC LOAD=5pFNOISE,RTIVoltage noise density25°C40nV/√Hz POWER SUPPLYV S Operating voltage Full range 2.718VV OUT=2V Full range7001250INA193A,INA194A,370950I Q Quiescent current INA196A,µAV SENSE=0mV Full rangeINA197AINA195A,3701050INA198ATEMPERATURE RANGEOperating temperature–40125°CStorage temperature–65150°CθJA Thermal resistance200°C/W4Submit Documentation Feedback Copyright©2006–2008,Texas Instruments IncorporatedTYPICAL CHARACTERISTICS4540353025201510510k100k G a i n (d B )Frequency (Hz)1M4540353025201510510k 100k G a i n (d B )Frequency (Hz)1M140130120110100908070605040101001k10k C o m m o n -M o d e a n d P o w e r -S u p p l y R e j e c t i o n (d B )Frequency (Hz)100k2018161412108642020100200300400500600700V O U T (V )V DIFFERENTIAL (mV)8009004.03.53.02.52.01.51.00.50050100150200250300350O u t p u t E r r o r (%e r r o r o f t h e i d e a l o u t p u t v a l u e )V (mV)SENSE 4004505000.10.090.080.070.060.050.040.030.020.01041282016O u t p u t E r r o r (%)Common-Mode Voltage (V)...7680INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1 SBOS366C–AUGUST 2006–REVISED OCTOBER 2008T A =25°C,V S =12V,V IN+=12V,and V SENSE =100mV (unless otherwise noted)GAIN GAIN vsvsCOMMON-MODE and POWER-SUPPLY REJECTIONvsGAIN PLOTFREQUENCYOUTPUT ERROROUTPUT ERRORvs vsV SENSECopyright ©2006–2008,Texas Instruments Incorporated Submit Documentation Feedback 5121110987654321005101520O u t p u t V o l t a g e (V )Output Current (mA)25301000900800700600500400300200100001234567I (µA )Q Output Voltage (V)8910343026221814106O u t p u t S h o r t -C i r c u i t C u r r e n t (m A )Supply Voltage (V)18875775675575475375275175–16–12–8–4048121620I (µA )Q V (V)CM 7680...O u t p u t V o l t a g e (50 m V /d i v )Time (2 µs/div)G =20V = 10 mV to 20 mVSENSE Time (2 µs/div)G =20O u t p u t V o l t a g e (500 m V /d i v )V = 10 mV to 100 mVSENSE INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1SBOS366C–AUGUST 2006–REVISED OCTOBER TYPICAL CHARACTERISTICS (continued)T A =25°C,V S =12V,V IN+=12V,and V SENSE =100mV (unless otherwise noted)POSITIVE OUTPUT VOLTAGE SWINGQUIESCENT CURRENTvsvsOUTPUT VOLTAGEQUIESCENT CURRENTOUTPUT SHORT-CIRCUIT CURRENTvsvsCOMMON-MODE VOLTAGESUPPLY VOLTAGE6Submit Documentation Feedback Copyright ©2006–2008,Texas Instruments IncorporatedTime (2 µs/div)G =20O u t p u t V o l t a g e (50 m V /d i v )V = 90 mV to 100 mVSENSE Time (5 µs/div)G =50O u t p u t V o l t a g e (100 m V /d i v )V = 10 mV to 20 mVSENSE Time (5 µs/div)G =50O u t p u t V o l t a g e (1V /d i v )V = 10 mV to 100 mVSENSE Time (5 µs/div)G =50O u t p u t V o l t a g e (100 m V /d i v )V = 90 mV to 100 mVSENSE Time (10 µs/div)G =100O u t p u t V o l t a g e (2V /d i v )V = 10 mV to 100 mVSENSE INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1 SBOS366C–AUGUST 2006–REVISED OCTOBER 2008TYPICAL CHARACTERISTICS (continued)T A =25°C,V S =12V,V IN+=12V,and V SENSE =100mV (unless otherwise noted)STEP RESPONSESTEP RESPONSERESPONSECopyright ©2006–2008,Texas Instruments Incorporated Submit Documentation Feedback 7APPLICATION INFORMATIONBasic ConnectionV IN+–16I Power SupplyAccuracy Variations as a Result of V SENSE and Common-Mode VoltageINA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1SBOS366C–AUGUST 2006–REVISED OCTOBER Figure 1shows the basic connection of the INA19xA.The input pins,V IN+and V IN–,should be connected as closely as possible to the shunt resistor to minimize any resistance in series with the shunt resistance.Power-supply bypass capacitors are required for stability.Applications with noisy or high-impedance power supplies may require additional decoupling capacitors to reject power-supply noise.Connect bypass capacitors close to the device pins.Figure 1.INA19xA Basic ConnectionThe input circuitry of the INA19xA can accurately measure beyond its power-supply voltage,V+.For example,the V+power supply can be 5V,whereas the load power-supply voltage is up to 80V.The output voltage range of the OUT terminal,however,is limited by the voltages on the power-supply pin.The accuracy of the INA193A–INA198A current shunt monitors is a function of two main variables:V SENSE (V IN+–V IN–)and common-mode voltage,V CM ,relative to the supply voltage,V S .V CM is expressed as (V IN++V IN–)/2;however,in practice,V CM is seen as the voltage at V IN+because the voltage drop across V SENSE is usually small.8Submit Documentation Feedback Copyright ©2006–2008,Texas Instruments IncorporatedNormal Case 1:V SENSE ≥20mV,V CM ≥V SG +V OUT1*V OUT2100mV *20mV (1)V OS RTI (Referred−To−Input)+ǒV OUT1G Ǔ*100mV(2)Normal Case 2:V SENSE ≥20mV,V CM <V SLow V SENSE Case 1:V SENSE <20mV,–16V ≤V CM <0;and Low V SENSE Case 3:V SENSE <20mV,INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1 SBOS366C–AUGUST 2006–REVISED OCTOBER 2008This section addresses the accuracy of these specific operating regions:Normal Case 1:V SENSE ≥20mV,V CM ≥V S Normal Case 2:V SENSE ≥20mV,V CM <V SLow V SENSE Case 1:V SENSE <20mV,–16V ≤V CM <0Low V SENSE Case 2:V SENSE <20mV,0V ≤V CM ≤V S Low V SENSE Case 3:V SENSE <20mV,V S <V CM ≤80VThis region of operation provides the highest accuracy.Here,the input offset voltage is characterized and measured using a two-step method.First,the gain is determined by (Equation 1).Where:V OUT1=Output voltage with V SENSE =100mV V OUT2=Output voltage with V SENSE =20mVThe offset voltage is then measured at V SENSE =100mV and referred to the input (RTI)of the current shunt monitor,as shown in (Equation 2).In the Typical Characteristics,the Output Error vs Common-Mode Voltage curve shows the highest accuracy for the this region of operation.In this plot,V S =12V;for V CM ≥12V,the output error is at its minimum.This case is also used to create the V SENSE ≥20mV output specifications in the Electrical Characteristics table.This region of operation has slightly less accuracy than Normal Case 1as a result of the common-mode operating area in which the part functions,as seen in the Output Error vs Common-Mode Voltage curve.As noted,for this graph V S =12V;for V CM <12V,the Output Error increases as V CM becomes less than 12V,with a typical maximum error of 0.005%at the most negative V CM =–16V.V S <V CM ≤80VAlthough the INA193A–INA198A family of devices are not designed for accurate operation in either of these regions,some applications are exposed to these conditions;for example,when monitoring power supplies that are switched on and off while V S is still applied to the INA193A–INA198A.It is important to know what the behavior of the devices will be in these regions.As V SENSE approaches 0mV,in these V CM regions,the device output accuracy degrades.A larger-than-normal offset can appear at the current shunt monitor output with a typical maximum value of V OUT =300mV for V SENSE =0mV.As V SENSE approaches 20mV,V OUT returns to the expected output value with accuracy as specified in the Electrical Characteristics.Figure 2illustrates this effect using the INA195A and INA198A (Gain =100).Copyright ©2006–2008,Texas Instruments Incorporated Submit Documentation Feedback 92.01.81.61.41.21.00.80.60.40.20024681012141618V O U T (V )V SENSE (mV)20Low V SENSE Case 2:V SENSE <20mV,0V ≤V CM ≤V S2.42.22.01.81.61.41.21.00.80.60.40.200246810121416182022V O U T (V )V SENSE (mV)24NOTE:(1)INA193,INA196V OUT Tested Limit =0.4V.INA194,INA197V OUT Tested Limit =1V.INA193A-Q1,INA194A-Q1,INA195A-Q1INA196A-Q1,INA197A-Q1,INA198A-Q1SBOS366C–AUGUST 2006–REVISED OCTOBER Figure 2.Example for Low V SENSE Cases 1and 3(INA195A,INA198A:Gain =100)This region of operation is the least accurate for the INA193A–INA198A family.To achieve the wide input common-mode voltage range,these devices use two op amp front ends in parallel.One op amp front end operates in the positive input common-mode voltage range,and the other in the negative input region.For this case,neither of these two internal amplifiers dominates and overall loop gain is very low.Within this region,V OUT approaches voltages close to linear operation levels for Normal Case 2.This deviation from linear operation becomes greatest the closer V SENSE approaches 0V.Within this region,as V SENSE approaches 20mV,device operation is closer to that described by Normal Case 2.Figure 3illustrates this behavior for the INA195A.The V OUT maximum peak for this case is tested by maintaining a constant V S ,setting V SENSE =0mV and sweeping V CM from 0V to V S .The exact V CM at which V OUT peaks during this test varies from part to part,but the V OUT maximum peak is tested to be less than the specified V OUT tested limit.Figure 3.Example for Low V SENSE Case 2(INA195A,INA198A:Gain =100)10Submit Documentation Feedback Copyright ©2006–2008,Texas Instruments Incorporated分销商库存信息: TIINA193AQDBVRQ1。
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PACKAGING INFORMATIONOrderable Device Status (1)Package Type Package Drawing Pins Package Qty Eco Plan (2)Lead/Ball FinishMSL Peak Temp (3)TPS3820-33QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3820-50QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3823-25QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3823-30QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3823-33QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3823-50QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3824-25QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3824-30QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3824-33QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3824-50QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3825-33QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3825-50QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3828-33QDBVRQ1ACTIVE SOT-23DBV 53000None Call TI Level-1-220C-UNLIM TPS3828-50QDBVRQ1ACTIVESOT-23DBV53000NoneCall TILevel-1-220C-UNLIM(1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan -May not be currently available -please check /productcontent for the latest availability information and additional product content details.None:Not yet available Lead (Pb-Free).Pb-Free (RoHS):TI's terms "Lead-Free"or "Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all 6substances,including the requirement that lead not exceed 0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Green (RoHS &no Sb/Br):TI defines "Green"to mean "Pb-Free"and in addition,uses package materials that do not contain halogens,including bromine (Br)or antimony (Sb)above 0.1%of total product weight.(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.PACKAGE OPTION ADDENDUM25-Feb-2005Addendum-Page 1IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. T esting and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. T o minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. 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