TIDRV8871DDARQ1
Overview
The DRV8871DDARQ1 is an automotive-qualified (AEC-Q100) H-bridge motor driver designed for brushed DC motors. It operates over a wide 6.8V to 45V supply range and can deliver up to 3.6A of peak output current. The device features integrated current regulation that eliminates the need for an external sense resistor, simplifying PCB layout and reducing BOM cost.
Why Choose This Part
This driver integrates current sensing and regulation, removing the power-dissipating external sense resistor typically required. It features a low-power sleep mode consuming only 13uA and includes robust protection circuitry such as undervoltage lockout, overcurrent protection, and thermal shutdown with automatic recovery.
Applications
Getting Started
To evaluate this part, use the DRV8871EVM evaluation module which provides a hardware platform for testing PWM duty cycle and current limit settings. Connect a microcontroller PWM output to the IN1/IN2 pins for bidirectional control, and set the current limit via a single resistor on the ILIM pin.
DRV8871 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Function | Stock |
|---|---|---|
| DRV8871DDARQ1 (this part) | — | 6,334 |
| DRV8871DDAR | Driver - Fully Int.. | 14,620 |
| DRV8871EVM | Motor Controller/D.. | 3 |
