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A3957

FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER

A3957 Features

* ±1.5 A Continuous Output Current

* 50 V Output Voltage Rating

* Internal PWM Current Control

* 4-Bit Non-Linear DAC for 16-Bit Microstepping

* Satlington® Sink Drivers

* Fast, Mixed Fast/Slow, and Slow Current-Decay Modes

* Internal Transient-Suppression Diodes

* In

A3957 General Description

Slow Current-Decay Mode Mixed Current-Decay Mode Fast Current-Decay Mode Table 3

* DAC Truth Table DAC Data D3 D2 D1 D0 HHHH HHH L HH L H HHL L H L HH HLHL HL LH HL L L L HHH L HH L LHLH LHL L L LHH L LHL LLLX Current Ratio, % 100 VREF/VS 3.00 95.7 3.13 91.3 3.29 87.0 3.45 82.6 .

A3957 Datasheet (473.00 KB)

Preview of A3957 PDF

Datasheet Details

Part number:

A3957

Manufacturer:

Allegro

File Size:

473.00 KB

Description:

Full-bridge pwm microstepping motor driver.
Data Sheet 29319.44B 3957 FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER The A3957SLB is designed for driving one winding of a bipolar stepper NO 1 NC.

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A3957 FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER Allegro

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