DRV8871EVM: 3.6A, 6.5 ~ 45V, Brushed Motor Driver

The DRV8871EVM is a complete solution for evaluating the DRV8871 brushed motor driver. It includes avoltage regulator to create 5 V, and a TLC555 timer configured to supply a PWM input to the DRV8871. The EVM also includes a potentiometer to adjust the speed of the motor by varying the duty cycle of the PWM and a second potentiometer to set the chopping current value. Jumpers are provided to configureeach input to a logic low, logic high, PWM, or to allow user control of the inputs. Test points are provided for ease of monitoring the input and output signals.

The DRV8871EVM only requires connections to the motor and power supply to operate.

Features:

• H-Bridge Motor Driver

  - Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads

• 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

• VM Undervoltage Lockout (UVLO)

• Overcurrent Protection (OCP)

• Thermal Shutdown (TSD)

• Automatic Fault Recovery