PBL3771-1 Description
The PBL 3771/1 is a switch-mode, constant-current driver IC (chopper) with two channels, one for each winding of a two-phase stepper motor. The circuit is especially developed for use in microstepping applications in conjunction with the matching dual DAC (Digital-to-Analog Converter) PBM 3960. A plete driver system consists of these two ICs, a few passive ponents and a microprocessor for generation of the proper...
PBL3771-1 Key Features
- Dual chopper driver in a single package
- 650 mA output current per channel
- Close matching between channels for high microstepping accuracy
- Selectable slow/fast current decay for improved high-speed microstepping
- Improved low-level linearity
- Specially matched to Dual DAC PBM 3960
- Selection of packages, 22-pin “batwing” DIP, 24 pin "batwing" SOIC or 28-lead PLCC with lead-frame for heat-sinking thro
- V MM2 M B2
- Phase 2
- In microstepping mode, “sine/cosine” drive where I1 = 650