LMD18201 Datasheet | National Semiconductor

Description The LMD18201 is a 3A H-Bridge designed for motion control applications. The device is built using a multi-technology process which bines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. The H-Bridge configuration is ideal for driving DC and stepper motors. The LMD18201 acmodates peak output currents up to 6A. Current sensing can be achieved via a small sense resistor connected in series with the power ground lead. For current sensing without disturbing the path of current to the load, the LMD18200 is remended. n n n n n n n TTL and CMOS patible inputs No “shoot-through” current Thermal warning flag output at 145˚C Thermal shutdown (outputs off) at 170˚C Internal clamp diodes Shorted load protection Internal charge pump with external bootstrap capability Applications n n n n n DC and stepper motor drives Position and velocity servomechanisms Factory automation robots Numerically controlled machinery puter printers and plotters Features n Delivers up to 3A continuous output n Operates at supply voltages up to 55V n Low RDS(ON) typically 0.33Ω per switch Functional Diagram DS010793-1 FIGURE 1. Functional Block Diagram of LMD18201 © 1999 National Semiconductor Corporation DS010793 .national. Connection Diagram and Ordering Information DS010793-2 Top View Order Number LMD18201T See NS Package Number TA11B .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Total Supply Voltage (VS, Pin 6) Voltage at Pins 3, 4, 5 and 9 Voltage at Bootstrap Pins (Pins 1 and 11) Peak Output Current (200 ms) Continuous Output Current (Note 2) Power Dissipation (Note 3) Sense Voltage (Pin 7 to Pin 8) 60V 12V VOUT + 16V 6A 3A 25W +0.5V to - 1.0V Power Dissipation (TA = 25˚C, Free Air) Junction Temperature, TJ(max) ESD Susceptibility (Note 4) Storage Temperature, TSTG Lead...