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PBL3776-1

Ericsson
Part Number PBL3776-1
Manufacturer Ericsson
Description Dual Controller IC for High Current Stepper Motor Applications
Published Mar 22, 2005
Detailed Description February 1999 PBL 3776/1 Dual Controller IC for High Current Stepper Motor Applications Description The PBL 3776/1 is a...
Datasheet PDF File PBL3776-1 PDF File

PBL3776-1
PBL3776-1

Overview
February 1999 PBL 3776/1 Dual Controller IC for High Current Stepper Motor Applications Description 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.
The PBL 3776/1 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 sections each containing four outputs, two source and two sink, intended to drive an external H-bridge.
Voltage supply requirements are +5 V for logic and +10 to +45 V for the outputs.
The close match between the two driver channels guarantees consistent output current ratios and motor positioning accuracy.
Key Features • Suitable to drive any external M...


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