3957 - FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER

Allegro MicroSystems

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3957 Datasheet Preview — Preview of 3957 PDF

Datasheet Details

Part number: 3957
Manufacturer: Allegro MicroSystems
File Size: 462.77 KB
Datasheet: 3957_AllegroMicroSystems.pdf
Description: FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER

3957 Product details

Description

Slow Current-Decay Mode Mixed Current-Decay Mode Fast Current-Decay Mode Table 3 DAC Truth Table DAC Data D3 H H H H H H H H L L L L L L L Current D0 H L H L H L H L H L H L H L X D2 H H H H L L L L H H H H L L L D1 H H L L H H L L H H L L H H L Ratio, % 100 95.7 91.3 87.0 82.6 78.3 73.9 69.6 60.9 52.2 43.5 34.8 26.1 17.4 VREF/VS 3.00 3.13 3.29 3.45 3.64 3.83 4.07 4.31 4.93 5.74 6.90 8.62 11.49 17.24 All Outputs Disabled where VS = ITRIP RS .

Features

s s s s s s s s s ±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 Internal Thermal-Shutdown Circuitry Crossover-Current and UVLO Protection Always order by complete part number: Part Number A3957SA A3957SLB Package 16-pin DIP 24-lead batwing SOIC RθJA 60°C/W 56°C/W RθJC 38°C/W.
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FULL-BRIDGE PWM MICROSTEPPING MOTOR DRIVER Allegro MicroSystems

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3957 Stock/Price