LMD18200

LMD18200 3A, 55V H-Bridge December 1999 LMD18200 3A, 55V H-Bridge General Description The LMD18200 is a 3A H-Bridge designed for motion control applications. 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. Ideal for driving DC and stepper motors; the LMD18200 accommodates peak output currents up to 6A. An innovative circuit which facilitates low-loss sensing of the output current has been implemented. n n n n n n 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 Computer printers and plotters Features n n n n Delivers up to 3A continuous output Operates at supply voltages up to 55V Low RDS(ON) typically 0.3Ω per switch TTL and CMOS compatible inputs Functional Diagram DS010568-1 FIGURE 1. Functional Block Diagram of LMD18200 © 1999 National Semiconductor Corporation DS010568 www.national.com LMD18200 Connection Diagrams and Ordering Information DS010568-2 11-Lead TO-220 Package Top View Order Number LMD18200T See NS Package TA11B DS010568-25 24-Lead Dual-in-Line Package Top View Order Number LMD18200-2D-QV 5962-9232501VXA LMD18200-2D/883 5962-9232501M...