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[原创]ST L99DZ200G车门致动器驱动器和电源管理模块解决方案

关键词:汽车电子 车门致动器驱动器 ST L99DZ200G

时间:2022-03-22 16:00:58       来源:中电网

ST公司的L99DZ200G是汽车门区系统集成电路,提供电子控制模块和增强功率管理电源功能,包括各种待机模式,以及LIN和HS CAN物理通信层.器件的两个低压降电压稳压器给系统微控制器和外部外设负载如传感器和提供具有可编负载和遥控叫醒能力的增强系统待机功能除了5个给LED供电的高边驱动器,2个高边驱动器给电灯泡供电以增加系统集成度.三个高边驱动器被配置支持所谓恒流模式, 设想给具有巨大去耦电容的外部LED模块供电.多达3个DC马达和8个外接MOS晶体管组成H桥配置(2个H桥中每个为4个)被驱动.另外的栅极驱动器能控制高边配置的MOSFET,给连接GND(如镜子加热器)的电阻供电.电致变色镜面玻璃能采用和外接MOS晶体管的集成的SPI驱动模块来控制.所有输出是SC保护和实现开路诊断.ST标准的SPI接口(4.0)允许控制和诊断设备,并使能通用软件开发.器件具有AEC-Q100认证,内部10位PWM计时器用于每个单独高边驱动器.本文介绍L99DZ200G主要特性,框图, 典型应用框图以及评估板EVAL-L99DZ200主要特性,母板和子板电路图和PCB设计图.

 

Automotive Front Door device with LIN and HS-CAN providing Dual H-bridge driving

The L99DZ200G is a door zone systems IC providing electronic control modules with enhanced power management power supply functionality, including various standby modes, as well as LIN and HS CAN physical communication layers. The two low-drop voltage regulators of the device supply the system microcontroller and external peripheral loads such as sensors and provide enhanced system standby functionality with programmable local and remote wake-up capability. In addition 5 high-side drivers to supply LEDs, 2 high-side drivers to supply bulbs increase the system integration level. Three High Side..

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