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[原创]STAEK-MOT-2DC40Y1每路高达35A汽车双路DC马达驱动方案

关键词:汽车电子 马达驱动器 ST

时间:2021-03-11 16:43:54       来源:中电网

ST公司的评估板AEK-MOT-2DC40Y1是汽车级双路DC马达驱动器,每路电流高达35A.该评估板采用全桥马达驱动器VNH7040AY,它包含双路单片高边驱动器和两个低边开关.所有开关采用ST公司的VIPower® M0技术,允许在同以芯片内集成真正的功率MOSFET和智能信号/保护电路.三个芯片封装在PowerSSO-36封装内,有三个露出的小岛以最优化散热性能.该封装特别设计用在汽车苛刻的环境中.VNH7040AY满足汽车AEC-Q100资质,输出电流35A,3V CMOS兼容输入,具有欠压关断,超压箝住,热关断以及交叉导通保护和电流与功率限制.器件具有非常低的待机功耗,PWM工作高达20kHz.器件的

多重感测功能包括模拟马达电流反馈,片上温度监测和电池电压监测.多重检测诊断功能包括输出对地短路检测,热关断指示,关闭状态负载开路检测,高边功率限制指示,低边过流关断指示以及输出对VCC短路检测.本文介绍了VNH7040AY主要特性,框图,典型应用电路图和多次检测模拟监视电路图和配置电路图,以及汽车级每路高达35A的双路DC马达驱动器评估板AEK-MOT-2DC40Y1主要特性,框图,电路图和材料清单.

 

The device is a full bridge motor driver intended for a wide range of automotive applications. The device incorporates a dual monolithic high-side driver and two low-side switches. All switches are designed using STMicroelectronics® well known and proven proprietary VIPower® M0 technology that allows to efficiently integrate on the same die a true Power MOSFET with an intelligent signal/protection circuitry. The three dice are assembled in a PowerSSO-36 package equipped with three exposed islands for optimized dissipation performances. This package is specifically designed for the harsh automotive environment and offers improved therm..

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