DRV8870EVM: 3.5A, 8 ~ 40V Brushed Motor Driver

The DRV8870EVM is a complete solution for evaluating the DRV8870 brushed motor driver. It includes a voltage regulator to create 5 V, and a TLC555 timer configured to supply a PWM input to the DRV8870.

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 configure each 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.

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

• Integrated Current Regulation

• Low-Power Sleep Mode

• VM Undervoltage Lockout (UVLO)

• Overcurrent Protection (OCP)

• Thermal Shutdown (TSD)

• Automatic Fault Recovery