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

Summary

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

Specifications

Manufacturer	Texas Instruments
Category	Motor Control
Eval Board Part Number	296-43184-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Voltage In	6.5 ~ 45V
Number of Motors and Type	1, DC Brush Motor 1, Stepper Motor, BiPolar
Power / Current Out	3.6 A
Features	Auto Fault Recovery Current Sensing Light Load Mode Over Current Protection PWM Interface Thermal Protection Under Voltage Protection, Brown-Out
Component Count + Extras	18 + 23
Application / Target Market	Printer, Plotter White Goods
Design Author	Texas Instruments
Main I.C. Base Part	DRV8871
Date Created By Author	2015-08
Date Added To Library	2024-06