Automotive 40-V, 3.5-A H-bridge motor driver with integrated current sensing & current sense

The DRV8876-Q1 is an

integrated motor driver with N-channel H-bridge, charge pump, current sensing and proportional output, current regulation, and

protection circuitry. The charge pump improves efficiency by supporting N-channel

MOSFET half bridges and 100% duty cycle driving. The family of devices come in

pin-to-pin RDS(on) variants to support different loads with minimal

design changes.

An internal current mirror

architecture on the IPROPI pin implements current sensing and regulation. This

eliminates the need for a large power shunt resistor, saving board area and reducing

system cost. The IPROPI current-sense output allows a microcontroller to detect

motor stall or changes in load conditions. Using the external voltage reference pin,

VREF, these devices can regulate the motor current during start-up and high-load

events without interaction from a microcontroller.

A low-power sleep mode achieves

ultra-low quiescent current draw by shutting down most of the internal circuitry.

Internal protection features include supply undervoltage lockout, charge pump

undervoltage, output overcurrent, and device overtemperature. Fault conditions are

indicated on nFAULT.

View our full portfolio of brushed motor drivers on ti.com.