HomedatasheetDRV8432DKDR

DRV8432DKDR Datasheet

Dual Full-Bridge PWM Motor Driver
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Description

Description
The DRV841x2 are high-performance, integrated dual full-bridge motor driver with an advanced protection system.
Because of the low RDS(on) of the H-Bridge MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%. This high efficiency enables the use of smaller power supplies and heatsinks, and the devices are good candidates for energy-efficient applications.
The DRV841x2 requires two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV841x2 can operate at up to 500-kHz switching frequency while still maintaining precise control and high efficiency. The devices also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection. The DRV841x2 has a current-limiting circuit that prevents device shutdown during load transients such as motor start-up. A programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements.
The DRV841x2 has unique independent supply and ground pins for each half-bridge. These pins make it possible to provide current measurement through external shunt resistor and support multiple motors with different power supply voltage requirements.

Features
• High-Efficiency Power Stage (up to 97%) With
   Low RDS(on) MOSFETs (110 mΩ at TJ = 25°C)
• Operating Supply Voltage up to 52 V
• DRV8412 (Power Pad Down): up to 2 × 3-A
   Continuous Output Current (2 × 6-A Peak) in Dual
   Full-Bridge Mode or 6-A Continuous Current in
   Parallel Mode (12-A Peak)
• DRV8432 (Power Pad Up): up to 2 × 7-A
   Continuous Output Current (2 × 12-A Peak) in
   Dual Full-Bridge Mode or 14-A Continuous
   Current in Parallel Mode (24-A Peak)
• PWM Operating Frequency up to 500 kHz
• Integrated Self-Protection Circuits Including
   Undervoltage, Overtemperature, Overload, and
   Short Circuit
• Programmable Cycle-by-Cycle Current Limit
   Protection
• Independent Supply and Ground Pins for Each
   Half Bridge
• Intelligent Gate Drive and Cross Conduction
   Prevention
• No External Snubber or Schottky Diode is
   Required

Applications
• Brushed DC and Stepper Motors
• Three-Phase Permanent Magnet Synchronous
   Motors
• Robotic and Haptic Control System
• Actuators and Pumps
• Precision Instruments
• TEC Drivers
• LED Lighting Drivers

Features

Parameters

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Manufacturer information

TEXAS INSTRUMENTS

Texas Instruments introduction - Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today.

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