TI DRV8412高性能马达驱动解决方案

TI 公司的DRV8412是具有先进保护系统的高性能全双桥马达驱动器，它的功率级效率达到97%，工作电压高达50V，最大为70V ，连续驱动电流高达2x3A，PWM工作频率高达500kHz，主要用在无刷DC和步进马达，三相永磁同步马达，精密仪表，机器人控制系统和TEC驱动器。本文介绍了DRV8412主要特性，方框图，多种工作模式的应用案例框图，DRV8412应用电路图和DRV8412EVM马达驱动评估板主要特性，电路图和材料费清单（BOM）。

The DRV8412/32 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 DRV8412/32 require two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV8412/32 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主要特性：

High-Efficiency Power Stage (up to 97%) with

Low RDS(on) MOSFETs (80 m at TJ = 25℃)

Operating Supply Voltage up to 50 V (70 V Absolute Maximum)
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