TI DRV8412高性能双路全桥马达驱动方案

TI 公司的DRV8412/22/32是集成了先进保护系统的高性能双路全桥马达驱动器,功率级的效率高达成协97%. DRV8412/22/32需要两个电源,12V用于GVDD和VDD,50V用于PVDD. DRV8412双路全桥模式2x3A或并联6A连续模式, DRV8422双路全桥模式2x5A或并联10A连续模式, DRV8432双路全桥模式2x7A或并联14A连续模式,PWM频率高达500kHz,主要用于无刷DC和步进马达,三相永磁同步马达,机器人和触感力控制系统,精密仪表和TEC驱动器.本文介绍DRV8412/22/32主要特性, 系统方框图, 简化应用电路图, 全桥模式和并行全桥模式工作的应用框图, 步进马达工作的应用框图, 三相PMSM GND传感模式工作的应用框图以及TEC驱动器的应用框图.

The DRV8412/22/32 are high performance, integrated dual full bridge motor drivers 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%, which enables the use of smaller power supplies and heatsinks, and are good candidates for energy efficient applications.

The DRV8412/22/32 require two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV8412/22/32 can operate at up to 500-kHz switching frequency while still maintain precise control and high efficiency. They also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system.

DRV8412/22/32主要特性:
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