The DRV8873-Q1 device is an integrated driver IC for
driving a brushed DC motor in automotive applications. Two logic inputs
control the H-bridge driver, which consists of four N-channel MOSFETs that drive
motors bi-directionally with up to 10-A peak current. The device operates from a
single power supply and supports a wide input supply range from 4.5 V to 38 V.
A PH/EN or PWM interface allows simple
interfacing to controller circuits. Alternatively, independent half-bridge control
is available to drive two solenoid loads.
Integrated current sensing provides an
output current proportional to the motor load current of both hide-side FETs without
the need for high-power sense resistors. This can be used to detect motor stall or
change in load conditions.
A low-power sleep mode is provided to
achieve very-low quiescent current draw by shutting down much of the internal
circuitry. Internal protection functions are provided for undervoltage lockout,
charge pump faults, overcurrent protection, short-circuit protection, open-load
detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and
through the SPI registers.
The DRV8873-Q1 device is an integrated driver IC for
driving a brushed DC motor in automotive applications. Two logic inputs
control the H-bridge driver, which consists of four N-channel MOSFETs that drive
motors bi-directionally with up to 10-A peak current. The device operates from a
single power supply and supports a wide input supply range from 4.5 V to 38 V.
A PH/EN or PWM interface allows simple
interfacing to controller circuits. Alternatively, independent half-bridge control
is available to drive two solenoid loads.
Integrated current sensing provides an
output current proportional to the motor load current of both hide-side FETs without
the need for high-power sense resistors. This can be used to detect motor stall or
change in load conditions.
A low-power sleep mode is provided to
achieve very-low quiescent current draw by shutting down much of the internal
circuitry. Internal protection functions are provided for undervoltage lockout,
charge pump faults, overcurrent protection, short-circuit protection, open-load
detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and
through the SPI registers.