LMD18201中文

LMD18201 3A, 55V H-Bridge General Description The LMD18201 is a 3A H-Bridge designed for motion control applications.LMD18201是3A的H桥设计为运动控制应用。The device is built using a multi-technology process which combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure.该设备是使用多技术的过程中，结合了双极型和CMOS控制电路和DMOS功率器件在同一单片结构。The H-Bridge configuration is ideal for driving DC and stepper motors.H桥驱动直流和步进电机的配置是理想的。The LMD18201 accommodates peak output currents up to 6A.LMD18201可容纳峰值输出电流高达6A。Current sensing can be achieved via a small sense resistor connected in series with the power ground lead.电流感应可以实现通过一个小的检测电阻串联在电源的地线。For current sensing without disturbing the path of current to the load, the LMD18200 is recommended.进行电流检测，而不会干扰到负载的电流的路径，在LMD18200建议。 Features n Delivers up to 3A continuous outputÑ提供高达3A的连续输出 n Operates at supply voltages up to 55VÑ工作在电源电压高达55V n Low RDS(ON) typically 0.33Ωper switchn低RDS（ON）通常每个开关0.33Ω n TTL and CMOS compatible inputsÑTTL和CMOS兼容输入 n No “shoot-through” currentn无“直通”当前 Thermal warning flag output at 145°C热警告标志输出在145℃ n Thermal shutdown (outputs off) at 170°Cn热关断（输出关闭），在170℃ n Internal clamp diodesn内部钳位二极管 n Shorted load protectionÑ负载短路保护 n Internal charge pump with external bootstrap capabilityn内部电荷泵外部自举功能

Applications n DC and stepper motor drives n Position and velocity servomechanisms n Factory automation robots n Numerically controlled machinery n Computer printers and plotters n直流和步进电机驱动器 N位置和速度伺服 N工厂自动化机器人 Ñ数控机械 N计算机打印机和绘图仪 Functional Diagram FIGURE 1. Functional Block Diagram of LMD18201 Connection Diagram and Ordering Information

Top View Order Number LMD18201T See NS Package Number TA11B

Absolute Maximum Ratings (Note 1)绝对最大额定值（注1）

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications. 如果军事/航空航天指定的设备是必需的，请联系国家半导体销售办事处/分销商的可用性和规格。 Total Supply Voltage (VS, Pin 6) 60V Voltage at Pins 3, 4, 5 and 9 12V Voltage at Bootstrap Pins (Pins 1 and 11) VOUT + 16V Peak Output Current (200 ms) 6A Continuous Output Current (Note 2) 3A连续输出电流 Power Dissipation (Note 3) 25W功率耗散 Sense Voltage (Pin 7 to Pin 8) +0.5V to −1.0V Power Dissipation (TA = 25°C, Free Air) 3W Junction Temperature, TJ(max) 150°C结温 ESD Susceptibility (Note 4) 1500VESD易感性 Storage Temperature, TSTG −40°C to +150°C Lead Temperature (Soldering, 10 sec.) 300°C焊接温度 Operating Ratings(Note 1)

Junction Temperature, TJ −40°C to +125°C VS Supply Voltage +12V to +55V

Electrical Characteristics(Note 5)

The following specifications规范 apply for VS = 42V, unless otherwise specified除非另有规定. Boldface limits apply over the entire temperature range, −40°C ≤TJ ≤+125°C, all other limits are for TA = TJ = 25°C. Symbol Parameter Conditions Typ Limit Units RDS(ON) Switch ON Resistance Output Current = 3A (Note 6) 0.33 0.4/0.6 Ω(max) RDS(ON) Switch ON Resistance Output Current = 6A (Note 6) 0.33 0.4/0.6 Ω(max) VCLAMP Clamp Diode Forward Drop钳位二极管正向压降 Clamp Current = 3A (Note 6) 1.2 1.5 V (max) VIL Logic Low Input Voltage Pins 3, 4, 5 −0.1 0.8 V(min) V(max) IIL Logic Low Input Current VIN = −0.1V, Pins = 3, 4, 5 −10 μA (max) VIH Logic High Input Voltage Pins 3, 4, 5 2 12 V (min) V (max) IIH Logic High Input Current VIN = 12V, Pins = 3, 4, 5 10 μA (max) Undervoltage Lockout 欠压锁定 Outputs Turn OFF 9 11 V (min) V (max) TJW Warning Flag Temperature Pin 9 ≤0.8V, IL = 2 mA 145 °C VF(ON) Flag Output Saturation Voltage饱和电压 TJ = TJW, IL = 2 mA 0.15 V IF(OFF) Flag Output Leakage输出漏 VF = 12V 0.2 10 μA (max) TJSD Shutdown Temperature Outputs Turn OFF 170 °C IS Quiescent Supply Current 静态电源电流 All Logic Inputs Low 13 25 mA (max) tD(ON) Output Turn-On Delay Time Sourcing Outputs拉输出, IOUT = 3A 300 ns Sinking Outputs, IOUT = 3A 300 ns tON Output Turn-On Switching Time Bootstrap Capacitor = 10 nF 自举电容 Sourcing Outputs, IOUT = 3A Sinking Outputs, IOUT = 3A 100 80

Ns ns tD(OFF) Output Turn-Off Delay Times Sourcing Outputs, IOUT = 3A Sinking Outputs, IOUT = 3A 200 200 Ns ns tOFF Output Turn-Off Switching Times Bootstrap Capacitor = 10 nF Sourcing Outputs, IOUT = 3A Sinking Outputs, IOUT = 3A 75 70 Ns ns tPW Minimum Input Pulse Width Pins 3, 4 and 5 1 μs tCPR Charge Pump Rise Time No Bootstrap Capacitor 20 μs

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.绝对最大额定值表明超过这一限度损坏设备可能会发生。DC and AC electrical specifications do not apply when operating the device beyond its rated operating conditions.DC和AC电气规格不超出其额定工作条件下操作设备时适用。 Note 2: See Application Information for details regarding current limiting.见应用信息有关电流限制。 Note 3: The maximum power dissipation must be derated at elevated temperatures and is a function of TJ(max), θJA, and TA.最大功耗必须降低在高温下，TJ（最大值），θJA，和TA是一个函数。The maximum allowable power dissipation at any temperature