1/2-H-BRIDGE DRIVER. DRV8839 Datasheet

DRV8839 Datasheet PDF


Part Number

DRV8839

Description

LOW VOLTAGE DUAL 1/2-H-BRIDGE DRIVER

Manufacture

etcTI

Total Page 26 Pages
Datasheet
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DRV8839
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DRV8839
SLVSBN4C – JANUARY 2013 – REVISED AUGUST 2016
DRV8839 Low-Voltage Dual ½-H-Bridge Driver IC
1 Features
1 Dual ½-H-Bridge Motor Driver
– Drives a DC Motor or One Winding of a
Stepper Motor, or Other Loads
– Low MOSFET ON-Resistance:
HS + LS 280 mΩ
• 1.8-A Maximum Drive Current
• Separate Motor and Logic Supply Pins:
– 0-V to 11-V Motor-Operating Supply-Voltage
– 1.8-V to 7-V Logic Supply-Voltage
• Individual ½-H-Bridge Control Input Interface
• Low-Power Sleep Mode With 120-nA Maximum
Combined Supply Current
• 2.00-mm × 3.00-mm 12-Pin WSON Package
2 Applications
• Battery-Powered:
– DSLR Lenses
– Consumer Products
– Toys
– Robotics
– Cameras
– Medical Devices
3 Description
The DRV8839 provides a versatile power driver
solution for cameras, consumer products, toys, and
other low-voltage or battery-powered applications.
The device has two independent ½-H-bridge drivers
and can drive one DC motor or one winding of a
stepper motor, as well as other devices like
solenoids. The output stages use N-channel power
MOSFETs configured as ½-H-bridges. An internal
charge pump generates needed gate-drive voltages.
The DRV8839 can supply up to 1.8-A of output
current. It operates on a motor power supply voltage
from 0 V to 11 V and a device power supply voltage
of 1.8 V to 7 V.
The DRV8839 has independent input and enable pins
for each ½-H-bridge which allow independent control
of each output.
Internal shutdown functions are provided for
overcurrent protection, short-circuit protection,
undervoltage lockout, and overtemperature.
The DRV8839 is packaged in a 12-pin,
2.00-mm × 3.00-mm WSON package (Eco-friendly:
RoHS and no Sb/Br).
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8839
WSON (12)
2.00 mm × 3.00 mm
(1) For all available packages, see the Orderable Addendum at
the end of the data sheet.
Simplified Schematic
VCC = 1.8 V to 7 V
VM = 0 V to 11 V
PWM
DRV8839
nSLEEP
Brushed DC
Motor or ½
Stepper Motor
Driver
1.8 A BDC
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

DRV8839
DRV8839
SLVSBN4C – JANUARY 2013 – REVISED AUGUST 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ............................................... 5
6.7 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 9
7.4 Device Functional Modes.......................................... 9
8 Application and Implementation ........................ 12
8.1 Application Information............................................ 12
8.2 Typical Application .................................................. 12
9 Power Supply Recommendations...................... 14
9.1 Bulk Capacitance .................................................... 14
10 Layout................................................................... 15
10.1 Layout Guidelines ................................................. 15
10.2 Layout Example .................................................... 15
10.3 Thermal Considerations ........................................ 15
11 Device and Documentation Support ................. 17
11.1 Documentation Support ........................................ 17
11.2 Receiving Notification of Documentation Updates 17
11.3 Community Resources.......................................... 17
11.4 Trademarks ........................................................... 17
11.5 Electrostatic Discharge Caution ............................ 17
11.6 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (December 2015) to Revision C
Page
• Deleted nFAULT from the Simplified Schematic .................................................................................................................... 1
• Deleted the NC pins from the Pin Functions table ................................................................................................................. 3
• Changed the value of the capacitor on the VM pin from 10 µF to 0.1 µF in the Typical Application Schematic ................. 12
• Changed the Layout Guidelines to clarify the guidelines for the VM pin.............................................................................. 15
• Deleted references to TI's PowerPAD package and updated it with thermal pad where applicable ................................... 16
• Added the Receiving Notification of Documentation Updates section ................................................................................ 17
Changes from Revision A (January 2014) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
Changes from Original (January 2013) to Revision A
Page
• Changed Features bullet ........................................................................................................................................................ 1
• Changed motor supply voltage range in Description section ................................................................................................. 1
• Changed Motor power supply voltage range in Recommended Operating Conditions ........................................................ 4
• Added tOCR and tDEAD parameters to Electrical Characteristics .............................................................................................. 5
• Added paragraph to Power Supplies and Input Pins section ............................................................................................... 14
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Product Folder Links: DRV8839
Copyright © 2013–2016, Texas Instruments Incorporated





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