Part Number : PBL3771N
Function : Precision Stepper Motor Driver
Pacakge : DIP 22 Pin, SOIC 24 Pin, PLCC 28 Pin type
Maker : Ericsson
The PBL3771, PBL3771N 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 complete driver system consists of these two ICs, a few passive components and a microprocessor for generation of the proper control and data codes required for microstepping.
The PBL3771 contains a clock oscillator, which is common for both driver channels; a set of comparators and flip-flops implementing the switching control; and two H-bridges with internal recirculation diodes. Voltage supply requirements are +5 V for logic and +10 to +45 V for the motor. Maximum output current is 650 mA per channel.
• 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.
Datasheet PDF Download :
Others datasheet of same file :
PBL3771, PBL3771/1NS, PBL3771/1QNS, PBL3771/1SOS, PBL3771/1SOT