PBL3776-1 Overview
The PBL 3776/1 is a switch-mode (chopper), constant-current controller IC intended for controlling external transistors in a high current stepper motor application.The IC has two channels one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3775/1. PBL 3776/1 is equipped with a Disable input to simplify half-stepping operation.
PBL3776-1 Key Features
- Suitable to drive any external Mos Fet or bipolar power transistor
- 0°C to +85°C operation
- Few external ponents
- Crossconduction prevented by time delay
- Close matching between channels for high positioning accuracy
- Digital filter on chip eliminates external filtering ponents
- Plastic 24-pin "narrow" DIP package
- T1BL R S Q T1AL T1BU T1AU Logic
- T2AU T 2AL T2BL
- 4 700 pF
PBL3776-1 Applications
- Suitable to drive any external Mos Fet or bipolar power transistor
- 0°C to +85°C operation