Datasheet Summary
February 1999
PBL 3774/1 Dual Stepper Motor Driver
Description
The PBL 3774/1 is a switch-mode (chopper), constant-current driver IC with two channels, one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3771/1 and PBL 3772/1. While all Dual stepper motor drivers are optimized for microstepping applications, the PBL 3774/1 is equipped with a TTL level patible Disable input to simplify half-stepping operation.
The circuit is well suited for microstepping applications together with the matching dual DAC (Digital-to-Analog Converter) PBM 3960/1. A plete driver system consists of these two ICs, a few passive ponents and a microprocessor for...