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PBL3770A

Ericsson
Part Number PBL3770A
Manufacturer Ericsson
Description High Performance Stepper Motor Drive Circuit
Published Mar 22, 2005
Detailed Description February 1999 PBL 3770A High Performance Stepper Motor Drive Circuit Description PBL 3770A is a bipolar monolithic circ...
Datasheet PDF File PBL3770A PDF File

PBL3770A
PBL3770A

Overview
February 1999 PBL 3770A High Performance Stepper Motor Drive Circuit Description PBL 3770A is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor.
It is a high power version of PBL 3717 and special care has been taken to optimize the power handling capability without suffering in reliability.
The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage.
The circuit is pin-compatible with the PBL 3717 industry-standard driver.
Two PBL 3770A and a small number of external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.
Key Features • Half-step and full-step operation.
• Switched mode bipolar constant current drive • Wide range of current control 5 -1800 mA.
• Wide voltage range 10 - 45 V.
• Designed for unstabilized motor supply voltage.
• Current levels can be selected in steps or var...


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