Description

This reference design demonstrates a multi-load drive using one driver chip in multiple configurations enabling reduced inventory. The multiple loads include one bipolar stepper motor: one brushed DC motor: and three actuator or solenoid loads driven from a 12-V DC supply. The design shows less than two percent accuracy error in input current limit: that helps to achieve a precise power limit for helping easy qualification as a low-power circuit: defined by IEC 60335-1. This reference design incorporates enhanced protections like open load detect: noise tolerant short circuit: overcurrent: overvoltage: undervoltage: overtemperature: surge and ESD protection all which helps to achieve a reliable and robust system design.