LMD18245 Datasheet (National Semiconductor) - 3A / 55V DMOS Full-Bridge Motor Driver

LMD18245, 3A / 55V DMOS Full-Bridge Motor Driver

The LMD18245 full-bridge power amplifier incorporates all the circuit blocks required to drive and control current in a brushed type DC motor or one phase of a bipolar stepper motor.

The multi-technology process used to build the device combines bipolar and CMOS control and protection circuitry with

LMD18245 Features

* n n n n n n n n n n DMOS power stage rated at 55V and 3A continuous Low RDS(ON) of typically 0.3Ω per power switch Internal clamp diodes Low-loss current sensing method Digital or analog control of motor current TTL and CMOS compatible inputs Thermal shutdown (outputs off) at TJ = 155˚C Overcurrent