Datasheet Summary
February 1999
PBL 3770A High Performance Stepper Motor Drive Circuit
Description
PBL 3770A is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor. It is a high power version of PBL 3717 and special care has been taken to optimize the power handling capability without suffering in reliability. The circuit consists of a LS-TTL patible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage. The circuit is pin-patible with the PBL 3717 industry-standard driver. Two PBL 3770A and a small number of external ponents form a plete control and drive unit for LS-TTL or microprocessor-contro...