ALLEGRO MICROSYSTEMS  A3972SB-T  MOTOR DRIVER FULL BRIDGE, 1.5A, DIP-24

ALLEGRO MICROSYSTEMS A3972SB-T

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Product Overview


The A3972SB-T is a dual DMOS full-bridge Micro-stepping PWM Motor Driver with crossover-current protection. The A3972 driver is designed for pulse-width modulated current control, capable of continuous output currents to ±1.5A and operating voltages to 50V. The internal fixed off-time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast and mixed current-decay modes. The desired load-current level is set via the serial port with two 6-bit linear DACs in conjunction with a reference voltage. The synchronous rectification circuitry will eliminate the need for external clamp diodes in most applications and external component count, while minimizing power dissipation. Internal circuit protection includes thermal shutdown with hysteresis, transient-suppression diodes and cross over-current protection.
  • Programmable mixed, fast and slow current-decay modes
  • 4MHz Internal oscillator for digital timing
  • Serial-interface controls chip functions
  • Synchronous rectification for low power dissipation
  • Precision 2V reference
  • Sleep and idle modes

Applications

Motor Drive & Control; Industrial
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Product Information


  • Motor Type Full Bridge
  • No. of Outputs 4Outputs
  • Output Current 1.5A
  • Output Voltage 50V
  • Driver Case Style DIP
  • No. of Pins 24Pins
  • Supply Voltage Min 4.5V
  • Supply Voltage Max 5.5V
  • Operating Temperature Min -20°C
  • Operating Temperature Max 85°C
  • Packaging Each
  • MSL -
  • Supply Voltage Range 4.5V to 5.5V
  • SVHC No SVHC (15-Jun-2015)

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  •  131/236
  •  132/235

  • CAD CadSoft_EAGLE (3.32KB) EN
  • Availability

    Availability: No Longer Manufactured


    Substitutes

    • 87K3392 - MOTOR DRIVER, STEPPER, 1.5A, TSSOP-24
     
     
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    Substitutes


      Newark Part No. Manufacturer Part No Manufacturer / Description
    Avail Price Qty
    ascdsc ascdsc ascdsc ascdsc ascdsc
    Suggested Substitutes
    87K3392
    A3992SLPTR-T

    A3992SLPTR-T

    ALLEGRO MICROSYSTEMS

    MOTOR DRIVER, STEPPER, 1.5A, TSSOP-24

    Availability:​ 6,173  

    Price for: Each (Supplied on Cut Tape)

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    More stock available week commencing 6/20/16

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