PBL3774-1 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.
PBL3774-1 Key Features
- Dual chopper driver in a single package
- Operation at -40 °C
- 1000 mA continuous output current per channel
- Low power dissipation, 2.6 W at 2 x 750 mA output current
- Close matching between channels for high microstepping accuracy
- Specially matched to the Dual DAC PBM 3960
- Plastic 22-pin batwing DIP package or 28-pin power PLCC package with lead-frame for heatsinking through PC board copper
- Phase 2