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DRV8432 - 产品图解：
DRV8432-12A 双路刷式直流或单路双极步进电机驱动器（PWM 控制器）
DRV8432-集成FET的步进栅极驱动器-步进驱动器-电机驱动器
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TI产品 - DRV8432介绍

DRV8432 - 12A 双路刷式直流或单路双极步进电机驱动器（PWM 控制器）

DRV8432是TI德州仪器公司的一款集成FET的步进栅极驱动器产品，DRV8432是12A 双路刷式直流或单路双极步进电机驱动器（PWM 控制器），本站介绍了DRV8432的封装应用图解、特点和优点、功能等，并给出了与DRV8432相关的TI元器件型号供参考。

DRV8432 - 12A 双路刷式直流或单路双极步进电机驱动器（PWM 控制器） - 集成FET的步进栅极驱动器 - 步进驱动器 - 德州仪器

产品特性
  • 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
产品应用
  • 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
产品说明

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 12V for GVDD and VDD, and another up to 50V 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.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
DRV8412HTSSOP (44)14.00 mm x 6.10 mm
DRV8432HSSOP (36)15.90 mm x 11.00 mm
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