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| DRV8837_15 Datasheet, PDF (8/24 Pages) Texas Instruments – Low-Voltage H-Bridge Driver | |||
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DRV8837, DRV8838
SLVSBA4D â JUNE 2012 â REVISED DECEMBER 2015
7 Detailed Description
www.ti.com
7.1 Overview
The DRV883x family of devices is an H-bridge driver that can drive one dc motor or other devices like solenoids.
The outputs are controlled using either a PWM interface (IN1 and IN2) on the DRV8837 device or a PH-EN
interface on the DRV8838 device.
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 family of devices adds protection
features beyond traditional discrete implementations: undervoltage lockout, overcurrent protection, and thermal
shutdown.
7.2 Functional Block Diagram
0 V to 11 V
VM
VM
VM
1.8 V to 7 V
VCC
VCC
IN1
Charge
Pump
Gate
Drive
OCP
Logic
Gate
Drive
VM
OCP
OUT1
DCM
OUT2
IN2
nSLEEP
Over-
Temp
Osc
GND
Figure 8. DRV8837 Functional Block Diagram
8
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Copyright © 2012â2015, Texas Instruments Incorporated
Product Folder Links: DRV8837 DRV8838
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