DRV8871 DDAR Motor Driver IC

DRV8871 IC 3.6 Ampere Brushed DC Motor Driver With Internal Current Sense

DRV8871 motor driver IC is ideal for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the Hbridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6 ampere peak current. The inputs can be pulse width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
DRV8871 IC has advanced current regulation circuitry that does not use an analog voltage reference or external sense resistor. This novel solution, uses a standard low-cost, low-power resistor to set the current threshold. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
DRV8871 Motor Driver IC is fully protected from faults and short circuits, including under voltage (UVLO), over current (OCP), and over temperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.

Features of DRV8871 IC

• Wide 6.5-V to 45-V Operating Voltage

• 565-mΩ Typical RDS(on) (HS + LS)

• 3.6-A Peak Current Drive

• PWM Control Interface

• Current Regulation Without a Sense Resistor

• Low-Power Sleep Mode

• Small Package and Footprint

Applications of DRV8871 IC

• Printers

• Appliances

• Industrial Equipment

• Other Mechatronic Applications

Related Links

• Motor Driver Selection Guide

• Industrial Motor Drive Solutions Guide

• DRV8871 IC Datasheet