70-V, 12-A dual H-bridge or bipolar stepper with current regulation & PWM control

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参数

Number of full bridges 2 Vs (Min) (V) 10.8 Vs ABS (Max) (V) 70 Peak output current (A) 6 RDS(ON) (HS + LS) (mOhms) 220 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current Regulation Rating Catalog Operating temperature range (C) -40 to 85 open-in-new 查找其它 刷式直流电机驱动器

封装|引脚|尺寸

HSSOP (DKD) 36 226 mm² 15.9 x 14.2 open-in-new 查找其它 刷式直流电机驱动器

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
open-in-new 查找其它 刷式直流电机驱动器

描述

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.

open-in-new 查找其它 刷式直流电机驱动器
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类型 标题 下载最新的英文版本 日期
* 数据表 DRV84x2 Dual Full-Bridge PWM Motor Driver 数据表 (Rev. G) 2014年 7月 7日
应用手册 Various Reference Voltage Driving Techniques for Motor Drive Current Regulation (Rev. B) 2021年 1月 19日
应用手册 Best Practices for Board Layout of Motor Drivers (Rev. A) 2019年 1月 22日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
技术文章 Why are you still driving automotive motors with relays? 2017年 7月 13日
技术文章 The story of motor-drive integration 2017年 1月 9日
技术文章 How to create a dynamic power solution for stepper motors, relays and LEDs 2016年 11月 1日
技术文章 How to avoid motor and system overvoltage using AVS technology without external components 2016年 10月 14日
更多文献资料 TM4C123x Stepper Motor Control Product Summary 2015年 7月 6日
用户指南 DRV8432EVM Motor Drive Evaluation Board.. (Rev. A) 2012年 5月 25日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
应用手册 PowerPAD® 轻松实现 (Rev. B) 2004年 5月 12日

设计与开发

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document-generic 用户指南
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说明

The DRV8432 is a dual full bridge PWM motor driver. It has a maximum recommended supply voltage of 52V and is capable of delivering 2x7A continuous output current and 2x12A peak current per device. The DRV8432 has an advanced protection system consisting of short-circuit protection, overcurrent (...)

特性
  • 2 x 12A Peak / 2 x 7A RMS Current Output
  • 1 x 24A Peak / 1 x 14A RMS Current Output
  • Wide Operating Voltage: 0 to 52V (+12V Gate Drive)
  • PWM Control Interface
  • 2-stage Thermal and Short Circuit Protection
  • On-board Header / Test Points for External Control of the DRV8432

CAD/CAE 符号

封装 引脚 下载
HSSOP (DKD) 36 了解详情

订购与质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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