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Product Overview

The A3959SB-T is a DMOS full-bridge PWM Motor Driver IC with crossover-current protection. The A3959 driver is designed for pulse width modulated current control of DC motors, capable of output currents to ±3A and operating voltages to 50V. Internal fixed off-time PWM current control timing circuitry can be adjusted via control inputs to operate in slow, fast and mixed current-decay modes. The PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a motor with externally applied PWM-control signals. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage monitoring of supply and charge pump and crossover-current protection.
  • Synchronous rectification for reduced power dissipation
  • Internal UVLO and thermal-shutdown circuitry
  • Internal oscillator for digital PWM timing
  • Mixed, fast and slow current-decay modes
  • Low RDS (ON) outputs
  • -20 to 85°C Ambient temperature range


Motor Drive & Control; Industrial
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Product Specifications, Documents & More

  • Driver Case Style: DIP
  • MSL: -
  • Motor Type: Full Bridge
  • No. of Outputs: 2
  • No. of Pins: 24
  • Operating Temperature Max: 85°C
  • Operating Temperature Min: -20°C
  • Output Current: 3A
  • Output Voltage: 50V
  • Packaging: Each
  • SVHC: No SVHC (15-Jun-2015)
  • Supply Voltage Max: 5.5V
  • Supply Voltage Min: 4.5V

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Availability: No Longer Stocked


Quantity List Price
1 - 9 £6.59
10 - 99 £4.46
100 - 249 £3.64
250 - 499 £3.05
500+ £2.74

Legislation and Environmental

  • Moisture Sensitivity Level: -
  • Country of Origin: Philippines

    Country in which last significant manufacturing process was carried out

  • RoHS Compliant: Yes
      RoHS Certificate of Compliance
  • Tariff No: 85423990
  • Weight (kg): .002
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