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3957

Part Number	3957
Manufacturer	Allegro MicroSystems
Description	FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER
Published	Mar 30, 2005
Detailed Description	3957 FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER A3957SLB NO CONNECT PFD REF NO CONNECT RC GROUND GROUND D3 LOGIC SUPPLY ...
Datasheet	3957 PDF File

Overview

3957 FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER A3957SLB NO CONNECT PFD REF NO CONNECT RC GROUND GROUND D3 LOGIC SUPPLY PHASE D2 NO CONNECT 1 2 3 4 5 6 7 8 9 10 11 12 NC VCC NC NC NC VBB NC 24 23 22 21 20 19 18 17 NC 16 15 NC 14 13 NO CONNECT LOAD SUPPLY OUTB NO CONNECT D0 GROUND GROUND SENSE NO CONNECT OUTA NO CONNECT D1 Data Sheet 29319.
44† The A3957SA and A3957SLB are designed for driving one winding of a bipolar stepper motor in a microstepping mode.
The outputs are rated for continuous output currents to ±1.
5 A and operating voltages to 50 V.
Internal pulse-width modulated (PWM) current control combined with an internal four-bit nonlinear digital-to-analog converter allows the motor c...

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