Power

Motor driver supports multiple control interface modes

3rd August 2021
Mick Elliott

Texas Instruments’ DRV8212 is an integrated motor driver with four N-channel power FETs, a charge pump regulator, and protection circuitry.

It is in stock at Digi-Key.

The triple-charge pump architecture allows the device to operate down to 1.65 V to accommodate the 1.8 V supply rails and low-battery conditions.

The charge pump integrates the capacitors to reduce the overall solution size of the motor driver on a PCB and allows for 100% duty-cycle operation. 

It supports multiple control interface modes including PWM (IN1/IN2), phase/enable (PH/ EN), independent half-bridge, and parallel half-bridge.

Each interface supports a low-power sleep mode to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry.

The device can supply up to 4 A peak output current. It operates with a supply voltage from 1.65 V to 5.5 V.

The driver offers robust internal protection features including supply undervoltage lockout (UVLO), output overcurrent (OCP), and device overtemperature (TSD). The DRV8212 come in pin-to-pin scalable RDS(ON) and supply voltage options to support various loads and supply rails with minimal design changes.

Applications include:

  • Brushed DC motors, solenoids, and relay driving
  • Water, gas, and electricity meters
  • IP network camera IR cut filters
  • Video doorbells
  • Machine vision cameras
  • Electronic smart locks
  • Electronic and robotic toys
  • Blood pressure monitors
  • Infusion pumps
  • Electric toothbrushes
  • Beauty and grooming

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