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

General Description

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.

Key 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 protection No shoot-through currents 15-lead TO-220 molded power package.

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📁 Similar Datasheet

Part Number Description Manufacturer
LMD18245 55V DMOS Full-Bridge Motor Driver Texas Instruments
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Other Datasheets by National Semiconductor (now Texas Instruments)

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LMD18245 3A, 55V DMOS Full-Bridge Motor Driver April 1998 LMD18245 3A, 55V DMOS Full-Bridge Motor Driver General Description 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 DMOS power switches on the same monolithic structure. The LMD18245 controls the motor current via a fixed off-time chopper technique. An all DMOS H-bridge power stage delivers continuous output currents up to 3A (6A peak) at supply voltages up to 55V.