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DRV8834RGET Datasheet(数据表) 1 Page - Texas Instruments

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部件型号  DRV8834RGET
说明  DUAL BRIDGE STEPPER OR DC MOTOR DRIVER
下载  30 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
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DRV8834RGET Datasheet(HTML) 1 Page - Texas Instruments

 
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DRV8834
www.ti.com
SLVSB19A – FEBRUARY 2012 – REVISED MARCH 2012
DUAL BRIDGE STEPPER OR DC MOTOR DRIVER
Check for Samples: DRV8834
1
FEATURES
2
Dual-H-Bridge Current-Control Motor Driver
Dynamic tBLANK and Mixed Decay Modes for
Smooth Microstepping
Capable of Driving Two DC Motors or One
Stepper Motor
PWM Winding Current Regulation and Limiting
Two Control Modes:
Thermally Enhanced Surface Mount Package
Built-In Indexer Logic With Simple
APPLICATIONS
STEP/DIRECTION Control and Up to
1/32-Step Microstepping
Battery-Powered Toys
PHASE/ENABLE Control, With the Ability to
POS Printers
Drive External References for > 1/32-Step
Video Security Cameras
Microstepping
Office Automation Machines
Output Current 1.5-A Continuous, 2.2-A Peak
Gaming Machines
per H-Bridge (at VM = 5 V, 25°C)
Robotics
Low RDS(ON): 305-mΩ HS + LS
(at VM = 5 V, 25°C)
Wide Power Supply Voltage Range:
2.5 V – 10.8 V
DESCRIPTION
The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic
applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC
motors.
The output driver block of each H-bridge consists of N-channel power MOSFET’s configured as an H-bridge to
drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.
With proper PCB design, each H-bridge of the DRV8834 is capable of driving up to 1.5-A RMS (or DC)
continuously, at 25°C with a VM supply of 5 V. It can support peak currents of up to 2.2 A per bridge. Current
capability is reduced slightly at lower VM voltages.
Internal shutdown functions with a fault output pin are provided for over current protection, short circuit
protection, under voltage lockout and overtemperature. A low-power sleep mode is also provided.
The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ (Eco-friendly: RoHS & no
Sb/Br).
ORDERING INFORMATION(1)
ORDERABLE PART
TOP-SIDE
PACKAGE(2)
NUMBER
MARKING
Reel of 2000
DRV8834PWPR
PowerPAD™ (HTSSOP) - PWP
DRV8834
Tube of 60
DRV8834PWP
Reel of 3000
DRV8834RGER
PowerPAD™ (VQFN) - RGE
8834
Reel of 250
DRV8834RGET
(1)
For the most current packaging and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.




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