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DRV8834RGET Datasheet(PDF) 1 Page - Texas Instruments |
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DRV8834RGET Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 30 page  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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