Over-

Temp

OUT1

OUT2

GND

VM

VM

VM

Gate

Drive

Logic

Osc

OCP

DCM

Charge

Pump

IN1

0 to 11 V

1.8 to 7 V

IN2

nSLEEP

VCC

VCC

VM

Gate

Drive

OCP

B0479-01

DRV8837, DRV8838

www.ti.com

SLVSBA4C – JUNE 2012 – REVISED FEBRUARY 2014

7 Detailed Description

7.1 Overview

The DRV883x is a H-bridge driver that can drive one DC motor or other devices like solenoids. The outputs are

controlled using either a PWM interface (IN1/IN2) on the DRV8837 or a PH/EN interface on the DRV8838.

A low-power sleep mode is included, which can be enabled using the nSLEEP pin.

These devices greatly reduce the component count of motor driver systems by integrating the necessary driver

FETs and FET control circuitry into a single device. In addition, the DRV883x adds protection features above

traditional discrete implementations: undervoltage lockout, overcurrent protection, and thermal shutdown.

7.2 Functional Block Diagram

Figure 4. DRV8837 Functional Block Diagram

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Product Folder Links: DRV8837 DRV8838