DRV8873HPWPR Description

In industrial applications, the DRV8873HPWPR is an integrated driver IC for operating a brushed DC motor. The H-bridge driver, which comprises four N-channel MOSFETs that drive motors bidirectionally with up to 10-A peak current, is controlled by two logic inputs. The device runs on a single power supply and accepts input voltages ranging from 4.5 to 38 volts.

A PH/EN or PWM interface enables simple controller circuit connectivity. Alternatively, two solenoid loads can be driven using separate half-bridge control.

The controller may monitor the load current via a current mirror. This mirror approximates the current through the high-side FETs and eliminates the need for a high-power resistor for current sensing.

By shutting down much of the internal circuitry, a low-power sleep mode is given to achieve very low quiescent current demand. Undervoltage lockout, charge pump problems, overcurrent protection, short-circuit protection, open-load detection, and temperature are all protected by internal protection features. The nFAULT pin and the SPI registers are used to identify fault states.

DRV8873HPWPR Features

• H-Bridge Motor Driver

      Drives One DC Motor, One Winding of a Stepper Motor, or Solenoid Loads

• Low HS + LS RDS(ON)

      150 m? at TJ = 25°C, 13.5 V

      250 m? at TJ = 150°C, 13.5 V

• 10-A Peak Current Drive

• 4.5-V to 38-V Operating Voltage Range

• Current Mirror for Output Current Sensing、

DRV8873HPWPR Applications

• Laser beam printers

• Multi-function printers

• Motorized window blinds

• Adjustable desks and beds

• Factory automation and robotics