STAEK－MOT－2DC40Y1每路高达35A汽车双路DC马达驱动方案

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 thermal performance thanks to exposed die pads. A Multisense_EN pin is available to enable the MultiSense diagnostic. The input signals INA and INB can directly interface the microcontroller to select the motor direction and the brake condition. Two selection pins (SEL0 and SEL1) are available to address to the microcontroller the information available on the Multisense. The Multisense pin allows to monitor the motor current by delivering a current...