LM393应用电路有以下几种
LM393是双电压比较器集成电路
LM393是双电压比较器集成电路。
该电路的特点如下：工作电源电压范围宽，单电源、双电源均可工作，单电源：2～36V，双电源:±1～±18V；消耗电流小，Icc=0.8mA；输入失调电压小，VIO=±2mV；共模输入电压范围宽，Vic=0～Vcc-1.5V；输出与TTL，DTL，MOS，CMOS 等兼容；输出可以用开路集电极连接“或”门；采用双列直插8引脚塑料封装（DIP8）和微形的双列8脚塑料封装（SOP8）新艺图库LM393内部结构图LM393引脚功能排列表：引出端序号功能符号引出端序号功能符号1 输出端1 OUT1 5 正向输入端2 1N+(2)2 反向输入端1 1N-(1) 6 反向输入端2 1N-(2)3 正向输入端1 1N+(1) 7 输出端2 OUT24 地GND 8 电源VCC 主要参数表：参数名称符号数值单位电源电压VCC ±18 或36 V差模输入电压VID ±36 V共模输入电压VI -0.3～VCC V功耗Pd 570 mW 工作环境温度Topr 0 to +70 ℃贮存温度Tstg -65 to 150 ℃电特性（除非特别说明，VCC=5.0V，Tamb=25℃）参数名称符号测试条件最小典型最大单位输入失调电压VIO VCM=0 to VCC-1.5 VO(P)=1.4V, Rs=0 - ±1.0 ±5.0 mV输入失调电流IIO - - ±5 ±50 nA输入偏置电流Ib - - 65 250 nA共模输入电压VIC - 0 - VCC -1.5 V静态电流ICCQ RL=∞- 0.6 1.0 mARL=∞, Vcc=30V - 0.8 2.5 mA电压增益AV VCC=15V, RL＞15kΩ- 200 - V/mV 灌电流lsink Vi(-)＞1V, Vi(+)=0V, Vo(p)＜1.5V 6 16 - mA输出漏电流IOLE Vi(-)=0V, Vi(+)=1V, VO=5V - 0.1 - nA应用说明:LM393是高增益,宽频带器件,象大多数比较器一样,如果输出端到输入端有寄生电容而产生耦合,则很容易产生振荡.这种现象仅仅出现在当比较器改变状态时,输出电压过渡的间隙.电源加旁路滤波并不能解决这个问题,标准PC板的设计对减小输入—输出寄生电容耦合是有助的.减小输入电阻至小于10K将减小反馈信号,而且增加甚至很小的正反馈量(滞回1.0~10mV)能导致快速转换,使得不可能产生由于寄生电容引起的振荡.除非利用滞后,否则直接插入IC并在引脚上加上电阻将引起输入—输出在很短的转换周期内振荡,如果输入信号是脉冲波形,并且上升和下降时间相当快,则滞回将不需要.比较器的所有没有用的引脚必须接地.LM393偏置网络确立了其静态电流与电源电压范围2.0~30V无关.通常电源不需要加旁路电容。
LM393常用应用电路
IOL
µA
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0.1
–
–
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1.0
ICC
mA
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0.4
1.0
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1.0
2.5
ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh, unless otherwise noted.)
SEMICONDUCTOR TECHNICAL DATA
8 1
N SUFFIX PLASTIC PACKAGE
CASE 626
8 1
D SUFFIX PLASTIC PACKAGE
CASE 751 (SO–8)
Representative Schematic Diagram (Diagram shown is for 1 comparator)
fore, no loading changes will exist on the input lines. 4. Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit of common
Order this document by LM393/D
Low Offset Voltage
Dual Comparators
The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range–to–ground level with single supply operation. Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer automotive, and industrial electronics.
LM393资料-lm393中文资料-lm393 比较器参数-lm393是什么
LM393 是双电压比较器集成电路。
该电路的特点如下：工作电源电压范围宽，单电源、双电源均可工作，单电源：2～36V，双电源:±1～±18V；消耗电流小，Icc=0.8mA；输入失调电压小，VIO=±2mV；共模输入电压范围宽，Vic=0～Vcc-1.5V；输出与TTL，DTL，MOS，CMOS 等兼容；输出可以用开路集电极连接“或”门；采用双列直插8 脚塑料封装（DIP8）和微形的双列8 脚塑料封装（SOP8）LM393内部结构图LM393引脚功能排列表：引出端序号功能符号引出端序号.功能符号1输出端1OUT15正向输入端2 1N+(2)2反向输入端1 1N-(1)6反向输入端2 1N-(2)3正向输入端1 1N+(1)7输出端2OUT24地GND8电源VCCLM393主要参数表：参数名称符号数值单位电源电压VCC±18 或36V差模输入电压VID±36V共模输入电压VI-0.3～VCCV功耗Pd570mW工作环境温度Topr0 to +70℃贮存温度Tstg-65 to 150℃电特性（除非特别说明，VCC=5.0V，Tamb=25℃）参数名称符号测试条件最小典型最大单位输入失调电压VIOVCM=0 to VCC-1.5 VO(P)=1.4V, Rs=0-±1.0±5.0mV输入失调电流IIO--±5±50nA输入偏置电流Ib--65250nA共模输入电压VIC--VCC-1.5V静态电流ICCQ RL=∞-0.61.0mARL=∞,Vcc=30V-0.82.5mA电压增益AVVCC=15V, RL＞15kΩ-200-V/mV灌电流lsinkVi(-)＞1V, Vi(+)=0V, Vo(p)＜1.5V616-mA输出漏电流IOLEVi(-)=0V, Vi(+)=1V, VO=5V-0.1-nA应用说明:LM393是高增益,宽频带器件,象大多数比较器一样,如果输出端到输入端有寄生电容而产生耦合,则很容易产生振荡.这种现象仅仅出现在当比较器改变状态时,输出电压过渡的间隙.电源加旁路滤波并不能解决这个问题,标准PC板的设计对减小输入—输出寄生电容耦合是有助的.减小输入电阻至小于10K 将减小反馈信号,而且增加甚至很小的正反馈量(滞回1.0~10mV)能导致快速转换,使得不可能产生由于寄生电容引起的振荡.除非利用滞后,否则直接插入IC并在引脚上加上电阻将引起输入—输出在很短的转换周期内振荡,如果输入信号是脉冲波形,并且上升和下降时间相当快,则滞回将不需要.比较器的所有没有用的引脚必须接地.LM393偏置网络确立了其静态电流与电源电压范围2.0~30V无关.通常电源不需要加旁路电容。
LM393系列低偏差双比较电路说明书
LM393, LM393E, LM293,LM2903, LM2903E, LM2903V, NCV2903Low Offset VoltageDual ComparatorsThe LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range−to−ground level withsingle supply operation. Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer, automotive, and industrial electronics.Features•Wide Single−Supply Range: 2.0 Vdc to 36 Vdc•Split−Supply Range: ±1.0 Vdc to ±18 Vdc•Very Low Current Drain Independent of Supply V oltage: 0.4 mA •Low Input Bias Current: 25 nA•Low Input Offset Current: 5.0 nA•Low Input Offset V oltage: 5.0 mV (max) LM293/393•Input Common Mode Range to Ground Level •Differential Input V oltage Range Equal to Power Supply V oltage •Output V oltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic Levels•ESD Clamps on the Inputs Increase the Ruggedness of the Device without Affecting Performance•NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS CompliantFigure 1. Representative Schematic Diagram See detailed marking information and ordering and shipping information on pages 6 and 7 of this data sheet.DEVICE MARKING AND ORDERINGINFORMATIONPDIP−8N SUFFIXCASE 6268SOIC−8D SUFFIXCASE 7511PIN CONNECTIONS(Top View)Inputs AInputs BOutput BCCMicro8EDM SUFFIXCASE 846A1MAXIMUM RATINGSRating Symbol Value Unit Power Supply Voltage V CC+36 or ±18V Input Differential Voltage V IDR36V Input Common Mode Voltage Range V ICR−0.3 to +36V Output Voltage V O36VOutput Short Circuit−to−Ground Output Sink Current (Note 1)I SCI SinkContinuous20mAPower Dissipation @ T A = 25°C Derate above 25°CP D1/R q JA5705.7mWmW/°COperating Ambient Temperature Range LM293LM393, LM393ELM2903, LM2903ELM2903V, NCV2903 (Note 2)T A−25 to +850 to +70−40 to +105−40 to +125°CMaximum Operating Junction Temperature LM393, LM393E, LM2903, LM2903E, LM2903V LM293, NCV2903T J(max)150150°CStorage Temperature Range T stg−65 to +150°C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.1.The maximum output current may be as high as 20 mA, independent of the magnitude of V CC, output short circuits to V CC can causeexcessive heating and eventual destruction.2.NCV2903 is qualified for automotive use.ESD RATINGSRating HBM MM Unit ESD Protection at any Pin (Human Body Model − HBM, Machine Model − MM)NCV2903 (Note 2)LM393E, LM2903ELM393DG/DR2G, LM2903DG/DR2G All Other Devices 200015002501500200150100150VVVVELECTRICAL CHARACTERISTICS (V CC = 5.0 Vdc, T low≤T A≤ T high, unless otherwise noted.)Characteristic Symbol LM293, LM393, LM393ELM2903/E/V,NCV2903Unit Min Typ Max Min Typ MaxInput Offset Voltage (Note 4)V IO mV T A = 25°C−±1.0±5.0−±2.0±7.0T low≤T A≤ T high−−±9.0−±9.0±15Input Offset Current I IO nA T A = 25°C−±5.0±50−±5.0±50T low≤T A≤ T high−−±150−±50±200Input Bias Current (Note 5)I IB nA T A = 25°C−20250−20250T low≤T A≤ T high−−400−20500Input Common Mode Voltage Range (Note 6)V ICR V T A = 25°C0−V CC −1.50−V CC −1.5T low≤T A≤ T high0−V CC −2.00−V CC −2.0Voltage Gain A VOL50200−25200−V/mV R L≥ 15 k W, V CC = 15 Vdc, T A = 25°CLarge Signal Response Time−−300−−300−ns V in = TTL Logic Swing, V ref = 1.4 VdcV RL = 5.0 Vdc, R L = 5.1 k W, T A = 25°CResponse Time (Note 7)t TLH− 1.3−− 1.5−m s V RL = 5.0 Vdc, R L = 5.1 k W, T A = 25°CInput Differential Voltage (Note 8)V ID−−V CC−−V CC V All V in≥ GND or V− Supply (if used)Output Sink Current I Sink 6.016− 6.016−mA V in≥ 1.0 Vdc, V in+ = 0 Vdc, V O≤ 1.5 Vdc T A = 25°COutput Saturation Voltage V OL mV V in≥ 1.0 Vdc, V in+ = 0, I Sink≤ 4.0 mA, T A = 25°C−150400−−400T low≤T A≤ T high−−700−200700Output Leakage Current I OL nA V in− = 0 V, V in+≥ 1.0 Vdc, V O = 5.0 Vdc, T A = 25°C−0.1−−0.1−V in− = 0 V, V in+≥ 1.0 Vdc, V O = 30 Vdc,T low≤T A≤ T high−−1000−−1000Supply Current I CC mA R L = ∞ Both Comparators, T A = 25°C−0.4 1.0−0.4 1.0R L = ∞ Both Comparators, V CC = 30 V−− 2.5−− 2.5Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions.LM293 T low = −25°C, T high = +85°CLM393, LM393E T low = 0°C, T high = +70°CLM2903, LM2903E T low = −40°C, T high = +105°CLM2903V & NCV2903 T low = −40°C, T high = +125°CNCV2903 is qualified for automotive use.3.The maximum output current may be as high as 20 mA, independent of the magnitude of V CC, output short circuits to V CC can causeexcessive heating and eventual destruction.4.At output switch point, V O]1.4 Vdc, R S = 0 W with V CC from5.0 Vdc to 30 Vdc, and over the full input common mode range(0 V to V CC = −1.5 V).5.Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state,therefore, no loading changes will exist on the input lines.6.Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit ofcommon mode range is V CC −1.5 V.7.Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times areobtainable.8.The comparator will exhibit proper output state if one of the inputs becomes greater than V CC, the other input must remain within the commonmode range. The low input state must not be less than −0.3 V of ground or minus supply.LM293/393LM2903Figure 2. Input Bias Current versusPower Supply Voltage Figure 3. Input Bias Current versusPower Supply VoltageFigure 4. Output Saturation Voltageversus Output Sink Current Figure 5. Output Saturation Voltageversus Output Sink CurrentFigure 6. Power Supply Current versusPower Supply Voltage Figure 7. Power Supply Current versusPower Supply VoltageV CC , SUPPLY VOLTAGE (Vdc)V CC , SUPPLY VOLTAGE (Vdc)V CC , SUPPLY VOLTAGE (Vdc)V CC , SUPPLY VOLTAGE (Vdc)I Sink , OUTPUT SINK CURRENT (mA)I Sink , OUTPUT SINK CURRENT (mA)I , I N P U T B I A S C U R R E N T (n A )I BV , S A T U R A T I O N V O L T A G E (V d c )O L I , S U P P L Y C U R R E N T (m A )CC 7130510152025303540101.00.10.010.0011.00.80.60.40.201.20.4101.00.10.010.0011.00.80.6I , S U P P L Y C U R R E N T (m A )CC V , S A T U R A T I O N V O L T A G E (V d c )O L I , I N P U T B I A S C U R R E N T (n A )I B891011121314151719212325APPLICATIONS INFORMATIONThese dual comparators feature high gain, wide bandwidth characteristics. This gives the device oscillation tendencies if the outputs are capacitively coupled to the inputs via stray capacitance. This oscillation manifests itself during output transitions (V OL to V OH ). To alleviate this situation, input resistors <10 k W should be used.The addition of positive feedback (<10mV) is also recommended. It is good design practice to ground all unused pins.Differential input voltages may be larger than supply voltage without damaging the comparator’s inputs. V oltages more negative than −0.3 V should not be used.Figure 8. Zero Crossing Detector(Single Supply)Figure 9. Zero Crossing Detector(Split Supply)Figure 10. Free−Running Square−Wave OscillatorFigure 11. Time Delay GeneratorFigure 12. Comparator with Hysteresis10D1 prevents input from going negative by more than 0.6 V.R1 + R2 = R3R3 ≤R5for small error in zero crossing.V in(min) [ 0.4 V peak for 1% phase distortion (DQ ).QV inEEV inV V O - V QV OV in V O V t ``ON'' for t t O +D t where:D t = RC ȏ n (V refV CC)LV CCR LV refR S = R1 | | R2V th1 = V ref +(V CC -V ref ) R1R1 + R2 + R L V th2 = V ref -(V ref -V O Low) R1R1 + R2MARKING DIAGRAMS18x = 2 or 3A = Assembly Location WL, L = Wafer Lot YY , Y = YearWW, W = Work WeekG , G = Pb−Free PackagePDIP−8CASE 626SOIC−8CASE 751**This marking diagram also applies to NCV2903DR2GMicro8CASE 846A 181818LM393NG AWLYYWW 18LM2903NAWL YYWWG(Note: Microdot may be in either location)1818ORDERING INFORMATIONDevice Operating TemperatureRange Package Shipping†LM293DG−25°C to +85°CSOIC−8(Pb−Free)98 Units / RailLM293DR2G2500 / Tape & Reel LM293DMR2G Micro8(Pb−Free)4000 / Tape and ReelLM393DG0°C to +70°CSOIC−8(Pb−Free)98 Units / RailLM393DR2G2500 / Tape & Reel LM393EDR2G SOIC−8(Pb−Free)2500 / Tape & Reel LM393NG PDIP−8(Pb−Free)50 Units / Rail LM393DMR2G Micro8(Pb−Free)4000 / Tape and ReelLM2903DG−40°C to +105°CSOIC−8(Pb−Free)98 Units / RailLM2903DR2G2500 / Tape & Reel LM2903EDR2G SOIC−8(Pb−Free)2500 / Tape & Reel LM2903DMR2G Micro8(Pb−Free)4000 / Tape and Reel LM2903NG PDIP−8(Pb−Free)50 Units / RailLM2903VDG−40°C to +125°CSOIC−8(Pb−Free)98 Units / RailLM2903VDR2G2500 / Tape & ReelLM2903VNG PDIP−8(Pb−Free)50 Units / RailNCV2903DR2G*SOIC−8(Pb−Free)2500 / Tape & ReelNCV2903DMR2G*Micro8(Pb−Free)4000 / Tape & Reel†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.*NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable.PDIP −8CASE 626−05ISSUE PDATE 22 APR 2015SCALE 1:1NOTE 8XXXXXXXXXAWL YYWWGGENERICMARKING DIAGRAM*XXXX = Specific Device Code A = Assembly Location WL = Wafer Lot YY = YearWW = Work WeekG = Pb −Free Package*This information is generic. Please refer to device data sheet for actual part marking.Pb −Free indicator, “G” or microdot “ G ”,may or may not be present.WITH LEADS CONSTRAINEDDIM MIN MAX INCHES A −−−−0.210A10.015−−−−b 0.0140.022C 0.0080.014D 0.3550.400D10.005−−−−e 0.100 BSC E 0.3000.325M−−−−10−−− 5.330.38−−−0.350.560.200.369.0210.160.13−−−2.54 BSC 7.628.26−−−10MIN MAX MILLIMETERSNOTES:1.DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.2.CONTROLLING DIMENSION: INCHES.3.DIMENSIONS A, A1 AND L ARE MEASURED WITH THE PACK-AGE SEATED IN JEDEC SEATING PLANE GAUGE GS −3.4.DIMENSIONS D, D1 AND E1 DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS ARE NOT TO EXCEED 0.10 INCH.5.DIMENSION E IS MEASURED AT A POINT 0.015 BELOW DATUM PLANE H WITH THE LEADS CONSTRAINED PERPENDICULAR TO DATUM C.6.DIMENSION eB IS MEASURED AT THE LEAD TIPS WITH THE LEADS UNCONSTRAINED.7.DATUM PLANE H IS COINCIDENT WITH THE BOTTOM OF THE LEADS, WHERE THE LEADS EXIT THE BODY .8.PACKAGE CONTOUR IS OPTIONAL (ROUNDED OR SQUARE CORNERS).E10.2400.280 6.107.11b2eB −−−−0.430−−−10.920.060 TYP 1.52 TYP cA20.1150.195 2.92 4.95L 0.1150.150 2.92 3.81°°NOTE 5STYLE 1:PIN 1.AC IN2.DC + IN3.DC − IN4.AC IN5.GROUND6.OUTPUT7.AUXILIARY8.V CCSOIC −8 NB CASE 751−07ISSUE AKDATE 16 FEB 2011NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006)PER SIDE.5.DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.6.751−01 THRU 751−06 ARE OBSOLETE. NEW STANDARD IS 751−07.SCALE 1:1STYLES ON PAGE 2DIM A MIN MAX MIN MAX INCHES4.805.000.1890.197MILLIMETERSB 3.80 4.000.1500.157C 1.35 1.750.0530.069D 0.330.510.0130.020G 1.27 BSC 0.050 BSC H 0.100.250.0040.010J 0.190.250.0070.010K 0.40 1.270.0160.050M 0 8 0 8 N 0.250.500.0100.020S5.806.200.2280.244MYM0.25 (0.010)YM0.25 (0.010)Z SXS____XXXXX = Specific Device Code A = Assembly Location L = Wafer Lot Y = YearW = Work WeekG = Pb −Free PackageGENERICMARKING DIAGRAM*8ICDiscrete 0.60.024ǒmm inchesǓSCALE 6:1*For additional information on our Pb −Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*Discrete(Pb −Free)IC (Pb −Free)XXXXXX = Specific Device Code A = Assembly Location Y = Year WW = Work Week G = Pb −Free Package*This information is generic. Please refer todevice data sheet for actual part marking.Pb −Free indicator, “G” or microdot “G ”, may or may not be present. Some products may not follow the Generic Marking.SOIC −8 NB CASE 751−07ISSUE AKDATE 16 FEB 2011STYLE 4:PIN 1.ANODE2.ANODE3.ANODE4.ANODE5.ANODE6.ANODE7.ANODEMON CATHODE STYLE 1:PIN 1.EMITTER2.COLLECTOR3.COLLECTOR4.EMITTER5.EMITTER6.BASE7.BASE8.EMITTER STYLE 2:PIN 1.COLLECTOR, DIE, #12.COLLECTOR, #13.COLLECTOR, #24.COLLECTOR, #25.BASE, #26.EMITTER, #27.BASE, #18.EMITTER, #1STYLE 3:PIN 1.DRAIN, DIE #12.DRAIN, #13.DRAIN, #24.DRAIN, #25.GATE, #26.SOURCE, #27.GATE, #18.SOURCE, #1STYLE 6:PIN 1.SOURCE2.DRAIN3.DRAIN4.SOURCE5.SOURCE6.GATE7.GATE8.SOURCE STYLE 5:PIN 1.DRAIN2.DRAIN3.DRAIN4.DRAIN5.GATE6.GATE7.SOURCE8.SOURCESTYLE 7:PIN 1.INPUT2.EXTERNAL BYPASS3.THIRD STAGE SOURCE4.GROUND5.DRAIN6.GATE 37.SECOND STAGE Vd 8.FIRST STAGE Vd STYLE 8:PIN 1.COLLECTOR, DIE #12.BASE, #13.BASE, #24.COLLECTOR, #25.COLLECTOR, #26.EMITTER, #27.EMITTER, #18.COLLECTOR, #1STYLE 9:PIN 1.EMITTER, COMMON2.COLLECTOR, DIE #13.COLLECTOR, DIE #24.EMITTER, COMMON5.EMITTER, COMMON6.BASE, DIE #27.BASE, DIE #18.EMITTER, COMMON STYLE 10:PIN 1.GROUND2.BIAS 13.OUTPUT4.GROUND5.GROUND6.BIAS 27.INPUT8.GROUND STYLE 11:PIN 1.SOURCE 12.GATE 13.SOURCE 24.GATE 25.DRAIN 26.DRAIN 27.DRAIN 18.DRAIN 1STYLE 12:PIN 1.SOURCE2.SOURCE3.SOURCE4.GATE5.DRAIN6.DRAIN7.DRAIN8.DRAINSTYLE 14:PIN 1.N −SOURCE2.N −GATE3.P −SOURCE4.P −GATE5.P −DRAIN6.P −DRAIN7.N −DRAIN8.N −DRAIN STYLE 13:PIN 1.N.C.2.SOURCE3.SOURCE4.GATE5.DRAIN6.DRAIN7.DRAIN8.DRAIN STYLE 15:PIN 1.ANODE 12.ANODE 13.ANODE 14.ANODE 15.CATHODE, COMMON6.CATHODE, COMMON7.CATHODE, COMMON8.CATHODE, COMMON STYLE 16:PIN 1.EMITTER, DIE #12.BASE, DIE #13.EMITTER, DIE #24.BASE, DIE #25.COLLECTOR, DIE #26.COLLECTOR, DIE #27.COLLECTOR, DIE #18.COLLECTOR, DIE #1STYLE 17:PIN 1.VCC2.V2OUT3.V1OUT4.TXE5.RXE6.VEE7.GND8.ACCSTYLE 18:PIN 1.ANODE2.ANODE3.SOURCE4.GATE5.DRAIN6.DRAIN7.CATHODE8.CATHODESTYLE 19:PIN 1.SOURCE 12.GATE 13.SOURCE 24.GATE 25.DRAIN 26.MIRROR 27.DRAIN 18.MIRROR 1STYLE 20:PIN 1.SOURCE (N)2.GATE (N)3.SOURCE (P)4.GATE (P)5.DRAIN6.DRAIN7.DRAIN8.DRAIN STYLE 21:PIN 1.CATHODE 12.CATHODE 23.CATHODE 34.CATHODE 45.CATHODE 5MON ANODEMON ANODE8.CATHODE 6STYLE 22:PIN 1.I/O LINE 1MON CATHODE/VCCMON CATHODE/VCC4.I/O LINE 3MON ANODE/GND6.I/O LINE 47.I/O LINE 5MON ANODE/GND STYLE 23:PIN 1.LINE 1 INMON ANODE/GNDMON ANODE/GND4.LINE 2 IN5.LINE 2 OUTMON ANODE/GNDMON ANODE/GND8.LINE 1 OUT STYLE 24:PIN 1.BASE2.EMITTER3.COLLECTOR/ANODE4.COLLECTOR/ANODE5.CATHODE6.CATHODE7.COLLECTOR/ANODE 8.COLLECTOR/ANODE STYLE 25:PIN 1.VIN2.N/C3.REXT4.GND5.IOUT6.IOUT7.IOUT8.IOUTSTYLE 26:PIN 1.GND2.dv/dt3.ENABLE4.ILIMIT5.SOURCE6.SOURCE7.SOURCE8.VCCSTYLE 27:PIN 1.ILIMIT2.OVLO3.UVLO4.INPUT+5.SOURCE6.SOURCE7.SOURCE8.DRAINSTYLE 28:PIN 1.SW_TO_GND2.DASIC_OFF3.DASIC_SW_DET4.GND5.V_MON6.VBULK7.VBULK8.VINSTYLE 29:PIN 1.BASE, DIE #12.EMITTER, #13.BASE, #24.EMITTER, #25.COLLECTOR, #26.COLLECTOR, #27.COLLECTOR, #18.COLLECTOR, #1STYLE 30:PIN 1.DRAIN 12.DRAIN 13.GATE 24.SOURCE 25.SOURCE 1/DRAIN 26.SOURCE 1/DRAIN 27.SOURCE 1/DRAIN 28.GATE 1Micro8t CASE 846A −02ISSUE JDATE 02 JUL 2013SCALE 2:1NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE.4.DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION.INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE.5.846A-01 OBSOLETE, NEW STANDARD 846A-02.STYLE 1:PIN 1.SOURCE 2.SOURCE 3.SOURCE 4.GATE 5.DRAIN 6.DRAIN 7.DRAIN 8.DRAINSTYLE 2:PIN 1.SOURCE 1 2.GATE 1 3.SOURCE 2 4.GATE 2 5.DRAIN 2 6.DRAIN 2 7.DRAIN 1 8.DRAIN 1STYLE 3:PIN 1.N-SOURCE 2.N-GATE 3.P-SOURCE 4.P-GATE 5.P-DRAIN 6.P-DRAIN 7.N-DRAIN 8.N-DRAINGENERICMARKING DIAGRAM*XXXX = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb −Free Package(Note: Microdot may be in either location)*For additional information on our Pb −Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*DIM A MIN NOM MAX MIN MILLIMETERS−−−− 1.10−−INCHES A10.050.080.150.002b 0.250.330.400.010c 0.130.180.230.005D 2.90 3.00 3.100.114E 2.903.00 3.100.114e 0.65 BSCL 0.400.550.700.016−−0.0430.0030.0060.0130.0160.0070.0090.1180.1220.1180.1220.026 BSC0.0210.028NOM MAX 4.75 4.90 5.050.1870.1930.199H E*This information is generic. Please refer to device data sheet for actual part marking. Pb −Free indicator, “G”or microdot “ G ”, may or may not be present.DIMENSION: MILLIMETERSRECOMMENDEDMECHANICAL CASE OUTLINEPACKAGE DIMENSIONSON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. 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最新电压比较器应用lM393剖析(共14张PPT)精品课件
情况。
第十页，共十四页。Fra bibliotek四、实验(shíyàn)设备与器件
1、 12V 直流电源
2、 函数信号发生器 3、 双踪示波器
4、 数字万用表
5、 交流(jiāoliú)毫伏表
6、 LM393双电压比较器集成电路 7、电位器 8、发光二极管
9、电阻器等
第十一页，共十四页。
(a) 过零比较器
(b) 电压(diànyā)传输特性
图10－2 过零比较器
第四页，共十四页。
2、迟滞比较器
图10－3为具有迟滞特性的过零比较器
如图10－3所示，从输出端引一个电阻分压正反馈支路到
同相输入端，若uo改变状态，∑点也随着改变电位，使过零 点离开原来位置。当uo为正（记作U+） ，则当ui＞U∑后 ，uo即由正变负
第五页，共十四页。
3、窗口（双限）比较器
简单的比较器仅能鉴别输入电压ui比参考电压UR高或低的
情况，窗口比较电路是由两个简单比较器组成，如图10－4
所示，它能指示出ui值是否处于和之间。如UR-＜Ui＜UR+ ，窗口比较器的输出电压Uo等于(děngyú)运放的正饱 和输出电压(+Uomax)，如果Ui＜ UR-或Ui ＞UR+ ，则 输出电压Uo等于运放的负饱和输出电压(－Uomax)。
第八页，共十四页。
3、窗口(chuāngkǒu)比较器应用
——三极管 值分选电路
参照下面参考电路，用双电压比较器LM393设计一个 值分选电路，要求(yāoqiú)当被 测三极管的 < 150 或 > 250， LED不亮，表示不合格；当150 250，LED 亮，表示
LM393
LM393LM339功能简介LM339集成块内部装有四个独立的电压比较器，该电压比较器的特点是：1）失调电压小，典型值为2mV；2）电源电压范围宽，单电源为2-36V，双电源电压为±1V-±18V；3）对比较信号源的内阻限制较宽；4）共模范围很大，为0~（Ucc-1.5V）Vo；5）差动输入电压范围较大，大到可以等于电源电压；6）输出端电位可灵活方便地选用。
LM339集成块采用C-14型封装，图1为外型及管脚排列图。
由于LM339使用灵活，应用广泛，所以世界上各大IC生产厂、公司竟相推出自己的四比较器，如IR2339、ANI339、SF339等，它们的参数基本一致，可互换使用。
LM339类似于增益不可调的运算放大器。
每个比较器有两个输入端和一个输出端。
两个输入端一个称为同相输入端，用“+”表示，另一个称为反相输入端，用“-”表示。
用作比较两个电压时，任意一个输入端加一个固定电压做参考电压（也称为门限电平，它可选择LM339输入共模范围的任何一点），另一端加一个待比较的信号电压。
当“+”端电压高于“-”端时，输出管截止，相当于输出端开路。
当“-”端电压高于“+”端时，输出管饱和，相当于输出端接低电位。
两个输入端电压差别大于10mV就能确保输出能从一种状态可靠地转换到另一种状态，因此，把LM339用在弱信号检测等场合是比较理想的。
LM339的输出端相当于一只不接集电极电阻的晶体三极管，在使用时输出端到正电源一般须接一只电阻（称为上拉电阻，选3-15K）。
选不同阻值的上拉电阻会影响输出端高电位的值。
因为当输出晶体三极管截止时，它的集电极电压基本上取决于上拉电阻与负载的值。
另外，各比较器的输出端允许连接在一起使用。
单限比较器电路图3为某仪器中过热检测保护电路。
它用单电源供电，1/4LM339的反相输入端加一个固定的参考电压，它的值取决于R1于R2。
UR=R2/（R1+R2）*UCC。
LM393资料
LM393资料LM393 是双电压比较器集成电路。
该电路的特点如下：工作电源电压范围宽，单电源、双电源均可工作，单电源：2～36V，双电源:±1～±18V；消耗电流小，Icc=0.8mA；输入失调电压小，V IO=±2mV；共模输入电压范围宽，Vic=0～Vcc-1.5V；输出与TTL，DTL，MOS，CMOS 等兼容；输出可以用开路集电极连接“或”门；采用双列直插8 脚塑料封装（DIP8）和微形的双列8 脚塑料封装（SOP8）LM393内部结构图LM393引脚功能排列表：电特性（除非特别说明，VCC=5.0V，Tamb=25℃）应用说明:LM393是高增益,宽频带器件,象大多数比较器一样,如果输出端到输入端有寄生电容而产生耦合,则很容易产生振荡.这种现象仅仅出现在当比较器改变状态时,输出电压过渡的间隙.电源加旁路滤波并不能解决这个问题,标准PC板的设计对减小输入—输出寄生电容耦合是有助的.减小输入电阻至小于10K将减小反馈信号,而且增加甚至很小的正反馈量(滞回1.0~10mV)能导致快速转换,使得不可能产生由于寄生电容引起的振荡.除非利用滞后,否则直接插入IC并在引脚上加上电阻将引起输入—输出在很短的转换周期内振荡,如果输入信号是脉冲波形,并且上升和下降时间相当快,则滞回将不需要.比较器的所有没有用的引脚必须接地.LM393偏置网络确立了其静态电流与电源电压范围2.0~30V无关.通常电源不需要加旁路电容。
差分输入电压可以大于Vcc并不损坏器件.保护部分必须能阻止输入电压向负端超过-0.3V.LM393的输出部分是集电极开路,发射极接地的NPN输出晶体管,可以用多集电极输出提供或OR ing 功能.输出负载电阻能衔接在可允许电源电压范围内的任何电源电压上,不受Vcc端电压值的限制.此输出能作为一个简单的对地SPS开路(当不用负载电阻没被运用),输出部分的陷电流被可能得到的驱动和器件的β值所限制.当达到极限电流(16mA)时,输出晶体管将退出而且输出电压将很快上升.输出饱和电压被输出晶体管大约60ohm 的γSAT限制。
LM339中文资料
LM339中文资料lm339中文资料什么是lm339?LM339/LM393是四电压比较器集成电路。
该电路的特点如下：工作电源电压范围宽，单电源、双电源均可工作，单电源：2～36V，双电源：±1～±18V；消耗电流小，Icc=1.3mA；输入失调电压小，V IO=±2mV；共模输入电压范围宽，Vic=0～Vcc-1.5V；输出与TTL，DTL，MOS，CMOS 等兼容；输出可以用开路集电极连接“或”门；采用双列直插14 脚塑料封装（DIP14）和微形的双列14 脚塑料封装（SOP14）内部结构图1/4 的内部电路图LM339引脚功能排列表：引脚功能符号引引脚功能符号1 输出端2 OUT2 8 反向输入端31N-(3)2 输出端1OUT1 9正向输入端31N+(3)3 电源VCC + 10反向输入端41N-(4)4 反向输入端11N-(1) 11正向输入端41N+(4)5 正向输入端1 1N+(1) 12电源Vcc-6 反向输入端2 1N-(2) 13输出端4 OUT47 正向输入端2OUT2(2) 14输出端3 OUT3LM339主要参数表：参数名称符号数值单位电源电压VCC ±18 或36 V差模输入电压VID ±36 V共模输入电压VI -0.3～VCC V功耗Pd 570 mW工作环境温度Topr 0 to +70 ℃贮存温度Tstg -65 to 150 ℃电特性（除非特别说明，VCC=5.0V，Tamb=25℃）数名称符号测试条件最小典型最大单位输入失调电压VIO VCM=0 to VCC-1.5 VO(P)=1.4V,Rs=0-±1.0 ±5.0 mV输入失调电流IIO --±5 ±50 nA输入偏置电流Ib--65 250 nA共模输入电压VIC -0 -VCC-1.5 VVCC = +5V, no load - 1.1 2.0 mA 静态电流ICCVCC = +30V, no load- 1.3 2.5 mA 电压增益AV VCC=15V, RL＞15kΩ-200 -V/mV 灌电流lsink Vi(-)＞1V, Vi(+)=0V, Vo(p)＜1.5V 6 16 -mA 输出漏电流IOLE Vi(-)=0V, Vi(+)=1V, VO=5V -0.1 -nA使用说明:LM393/339是高增益,宽频带器件,象大多数比较器一样,如果输出端到输入端有寄生电容而产生耦合,则很容易产生振荡.这种现象仅仅出现在当比较器改变状态时,输出电压过渡的间隙.电源加旁路滤波并不能解决这个问题,标准PC板的设计对减小输入—输出寄生电容耦合是有助的.减小输入电阻至小于10K将减小反馈信号,而且增加甚至很小的正反馈量(滞回1.0~10mV)能导致快速转换,使得不可能产生由于寄生电容引起的振荡.除非利用滞后,否则直接插入IC并在引脚上加上电阻将引起输入—输出在很短的转换周期内振荡,如果输入信号是脉冲波形,并且上升和下降时间相当快,则滞回将不需要.比较器的所有没有用的引脚必须接地.LM393/339偏置网络确立了其静态电流与电源电压范围2.0~30V无关.通常电源不需要加旁路电容。
lm393
贮存温度
符号 VCC VID VI Pd Topr Tstg
数值 18 或 36
36 -0.3～VCC
570 0 to +70 -65 to 150
单位 V V V mW
电特性（除非特别说明，VCC=5.0V， Tamb=25℃）
参数名称
符号
测试条件
输入失调电压
VIO
VCM=0 to VCC-1.5
Vo(p)＜1.5V
6
Vi(-)=0V, Vi(+)=1V,
VO=5V
VCC-1.5
V
0.6
1.0
mA
0.8
2.5
mA
200
V/mV
16
mA
0.1
nA
第二页 共三页
封装外形图
LM393
第三页 共三页
输出与 TTL，DTL，MOS，CMOS 等兼容；
输出可以用开路集电极连接“或”门；
采用双列直插 8 脚塑料封装（DIP8）和微形的双列 8 脚塑料封装（SOP8）。
方框图与引出端功能
8
7
Vcc
+ -
1
2
6
5
+
GND
3
4
引出端 序号 1 2 3 4
功能
输出端 1 反向输入端 1 正向输入端 1
地
符号
OUT1 1N-(1) 1N+(1) GND
引出端 序号.
5 6 7 8
功能
正向输入端 2 反向输入端 2
输出端 2 电源
பைடு நூலகம்符号
1N+(2) 1N-(2) OUT2
LM393中文资料工作原理
LM393中文资料工作原理一、LM393的工作原理1.差动放大器差动放大器是比较器的核心部件。
它由两个共射型晶体管组成，输入信号经过差分放大，然后通过输出驱动器将结果反馈给输出端口。
差动放大器的输出为差分信号，即输出电压的大小与输入电压的差值有关。
2.参考电压源参考电压源用于提供参考电压给差动放大器。
LM393采用内部参考电压源，用户可以通过引脚配置参考电压的大小。
3.输出驱动器输出驱动器负责将差动放大器的输出信号转换为稳定的电平信号。
LM393的输出引脚提供了一个开漏输出，可以通过外部电阻来将输出信号转换为电平信号。
输出可以连接到其他逻辑电路或者控制电路中，用于实现各种功能。
二、LM393的特点除了上述的工作原理之外，LM393还具有以下特点：1.低功耗：LM393的功耗非常低，可以在电池供电或者其他低功耗应用中使用。
2.宽电压供应范围：LM393可以工作在较宽的电压范围内，通常为2V 至36V。
3.高输入阻抗：LM393的差动输入具有很高的输入阻抗，可以减少对外部电路的干扰。
4.开漏输出：LM393的输出引脚为开漏输出，可以方便地与其他逻辑电路进行连接。
5.工作温度范围广：LM393可以在较广的温度范围内工作，通常为-40℃至85℃。
三、LM393中文资料对于LM393的中文资料，可以从以下几个方面进行了解：2.应用笔记：芯片厂商通常会提供一些应用笔记，介绍如何在特定应用中使用LM393、应用笔记通常包含电路示意图、详细的电路分析和实验结果等内容，可以帮助读者更好地理解和应用LM3933.教学视频：在一些电子教学平台、视频网站上，可以找到关于LM393的教学视频。
视频通常会通过实际演示和讲解，将LM393的工作原理和应用进行详细讲解，可以帮助读者更形象地理解LM3934.技术文章：一些电子技术社区、论坛或者博客上，可能会有一些关于LM393的技术文章。
这些文章通常由电子工程师或爱好者分享自己的经验和理解，可以从不同的角度了解LM393综上所述，LM393是一款常见的双路差分比较器芯片，具有低功耗、宽电压供应范围和高输入阻抗等特点。