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PBL3775-1

Ericsson
Part Number PBL3775-1
Manufacturer Ericsson
Description Dual Stepper Motor Driver
Published Mar 22, 2005
Detailed Description February 1999 PBL 3775/1 Dual Stepper Motor Driver Description The PBL 3775/1 is a switch-mode (chopper), constant-curr...
Datasheet PDF File PBL3775-1 PDF File

PBL3775-1
PBL3775-1

Overview
February 1999 PBL 3775/1 Dual Stepper Motor Driver Description The PBL 3775/1 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 3773/1.
While several of Ericsson´s dual stepper motor drivers are optimized for micro-stepping applications, PBL 3775/1 is equipped with a disable input to simplify half-stepping operation.
The PBL 3775/1 contains a clock oscillator, which is common for both driver channels, a set of comparators and flip-flops implementing the switching control, and two output H-bridges, including recirculation diodes.
Voltage supply requirements are + 5 V for logic and + 10 to + 45 V for the motor.
The close match between the two driver channels guarantees consistent output current ratios and motor positioning accuracy.
Key Features • Dual chopper driver in a single package.
• Operation down to -40°C.
• 750 mA continuous output current per channel.
• Low powe...


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