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DRV8332DKDR Datasheet(PDF) 1 Page - Texas Instruments |
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DRV8332DKDR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page GVDD GVDD PVDD M Controller RESET_A PWM_B OC_ADJ GND GND_A GND_B OUT_B PVDD_B AGND VREG M3 M2 BST_B NC NC GND RESET_C RESET_B VDD GVDD_C OUT_C PVDD_C BST_C GVDD_C PWM_C GND_C M1 GND GVDD_B OTW FAULT PWM_A GVDD_A BST_A PVDD_A OUT_A DRV8312 DRV8332 www.ti.com SLES256 – MAY 2010 Three Phase PWM Motor Driver Check for Samples: DRV8312, DRV8332 Because of the low RDS(on) of the power MOSFETs 1 FEATURES and intelligent gate drive design, the efficiency of • High-Efficiency Power Stage (up to 97%) with these motor drivers can be up to 97%, which enables Low RDS(on) MOSFETs (80 mΩ at TJ = 25°C) the use of smaller power supplies and heatsinks, and • Operating Supply Voltage up to 50 V are good candidates for energy efficient applications. (70 V Absolute Maximum) The DRV8312/32 require two power supplies, one at • DRV8312 (power pad down): up to 3.5 A 12 V for GVDD and VDD, and another up to 50 V for Continuous Phase Current (6.5 A Peak) PVDD. The DRV8312/32 can operate at up to 500-kHz switching frequency while still maintain • DRV8332 (power pad up): up to 8 A precise control and high efficiency. They also have an Continuous Phase Current ( 13 A Peak) innovative protection system safeguarding the device • Independent Control of Three Phases against a wide range of fault conditions that could • PWM Operating Frequency up to 500 kHz damage the system. These safeguards are short-circuit protection, overcurrent protection, • Integrated Self-Protection Circuits Including undervoltage protection, and two-stage thermal Undervoltage, Overtemperature, Overload, and protection. The DRV8312/32 have a current-limiting Short Circuit circuit that prevents device shutdown during load • Programmable Cycle-by-Cycle Current Limit transients such as motor start-up. A programmable Protection overcurrent detector allows adjustable current limit • Independent Supply and Ground Pins for Each and protection level to meet different motor requirements. Half Bridge • Intelligent Gate Drive and Cross Conduction The DRV8312/32 have unique independent supply Prevention and ground pins for each half bridge, which makes it possible to provide current measurement through • No External Snubber or Schottky Diode is external shunt resistor and support half bridge drivers Required with different power supply voltage requirements. APPLICATIONS Simplified Application Diagram • BLDC Motors • Three Phase Permanent Magnet Synchronous Motors • Inverters • Half Bridge Drivers • Robotic Control Systems DESCRIPTION The DRV8312/32 are high performance, integrated three phase motor drivers with an advanced protection system. 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. PRODUCTION DATA information is current as of publication date. Copyright © 2010, 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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