DRV8832 IC Datasheet

DRV8832 Datasheet, PDF, Equivalent


Part Number

DRV8832

Description

Low-Voltage Motor Driver IC

Manufacture

etcTI

Total Page 29 Pages
Datasheet
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DRV8832
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DRV8832
SLVSAB3I – MAY 2010 – REVISED JANUARY 2016
DRV8832 Low-Voltage Motor Driver IC
1 Features
1 H-Bridge Voltage-Controlled Motor Driver
– Drives DC Motor, One Winding of a Stepper
Motor, or Other Actuators/Loads
– Efficient PWM Voltage Control for Constant
Motor Speed With Varying Supply Voltages
– Low MOSFET On-Resistance:
HS + LS 450 mΩ
• 1-A Maximum DC/RMS or Peak Drive Current
• 2.75-V to 6.8-V Operating Supply Voltage Range
• 300-nA (Typical) Sleep Mode Current
• Reference Voltage Output
• Current Limit Circuit
• Fault Output
• Thermally-Enhanced Surface Mount Packages
2 Applications
• Battery-Powered:
– Printers
– Toys
– Robotics
– Cameras
– Phones
• Small Actuators, Pumps, and so forth
3 Description
The DRV8832 provides an integrated motor driver
solution for battery-powered toys, printers, and other
low-voltage or battery-powered motion control
applications. The device has one H-bridge driver, and
can drive one DC motor or one winding of a stepper
motor, as well as other loads like solenoids. The
output driver block consists of N-channel and P-
channel power MOSFETs configured as an H-bridge
to drive the motor winding.
Provided with sufficient PCB heatsinking, the
DRV8832 can supply up to 1 A of DC/RMS or peak
output current. The device operates on power supply
voltages from 2.75 V to 6.8 V.
To maintain constant motor speed over varying
battery voltages while maintaining long battery life, a
PWM voltage regulation method is provided. An input
pin allows programming of the regulated voltage. A
built-in voltage reference output is also provided.
Internal protection functions are provided for
overcurrent protection, short-circuit protection,
undervoltage lockout, and overtemperature
protection.
The DRV8832 also provides a current limit function to
regulate the motor current during conditions like
motor start-up or stall, as well as a fault output pin to
signal a host processor of a fault condition.
The DRV8832 is available in a tiny 3-mm × 3-mm 10-
pin VSON package and MSOP PowerPAD™
package (Eco-friendly: RoHS & no Sb/Br).
PART NUMBER
DRV8832
Device Information(1)
PACKAGE
BODY SIZE (NOM)
MSOP PowerPAD (10)
3.00 mm × 3.00 mm
VSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
2.75V to 6.8V
DRV8832 1.3A peak
IN1
Controller
IN2 Brushed DC
Motor Driver
BDC
Protection
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.

DRV8832
DRV8832
SLVSAB3I – MAY 2010 – REVISED JANUARY 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 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application .................................................. 11
9 Power Supply Recommendations...................... 15
9.1 Bulk Capacitance .................................................... 15
9.2 Power Supervisor.................................................... 15
10 Layout................................................................... 16
10.1 Layout Guidelines ................................................. 16
10.2 Layout Example .................................................... 16
10.3 Thermal Considerations ........................................ 16
11 Device and Documentation Support ................. 18
11.1 Documentation Support ....................................... 18
11.2 Community Resources.......................................... 18
11.3 Trademarks ........................................................... 18
11.4 Electrostatic Discharge Caution ............................ 18
11.5 Glossary ................................................................ 18
12 Mechanical, Packaging, and Orderable
Information ........................................................... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision H (October 2013) to Revision I
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
• Added VHYS parameter row under the Logic-Level Inputs section in Electrical Characteristics ............................................ 5
• Changed the paragraph describing the FAULT behavior in Current Limit ........................................................................... 10
• Updated the paragraphs in Power Dissipation and added Equation 4................................................................................. 16
2 Submit Documentation Feedback
Product Folder Links: DRV8832
Copyright © 2010–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design DRV8832 SL VSAB3I – MAY 2010 – REVISED JANUARY 2016 DRV8832 Low-Voltage Motor Driver IC 1 Features •1 H-Bridge Voltage-Co ntrolled Motor Driver – Drives DC Mot or, One Winding of a Stepper Motor, or Other Actuators/Loads – Efficient PWM Voltage Control for Constant Motor Spe ed With Varying Supply Voltages – Low MOSFET On-Resistance: HS + LS 450 mΩ • 1-A Maximum DC/RMS or Peak Drive Cu rrent • 2.75-V to 6.8-V Operating Sup ply Voltage Range • 300-nA (Typical) Sleep Mode Current • Reference Voltag e Output • Current Limit Circuit • Fault Output • Thermally-Enhanced Sur face Mount Packages 2 Applications • Battery-Powered: – Printers – Toys – Robotics – Cameras – Phones • Small Actuators, Pumps, and so forth 3 Description The DRV8832 provides an i ntegrated motor driver solution for bat tery-powered toys, printers, and other low-voltage or battery-powered motion control applications. The d.
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