Freescale MM9Z1J638智能电池监测解决方案

Freescale公司的MM9Z1J638是集成了CAN和LIN的智能电池传感器,是全集成的智能电池监测系统,通过外接并联电阻支持精密的电流测量,具有四个电压测量.器件包括内部的温度传感器,允许进行非常接近的电池温度测量,同时具有四个外接温度传感器输入.MM9Z1J638还具有LIN 2.2协议和物理接口以及msCAN协议控制器,用来和汽车总线接口.主要用在汽车电子和工业控制.本文介绍了MM9Z1J638主要特性,框图,典型应用电路和12V应用电路,以及评估板KIT9Z1J638EVM主要特性,框图,测试建立图,电路图,材料清单和PCB元件布局图.
The MM9Z1_638 is a fully integrated intelligent battery monitoring system. The device supports precise current measurement via an external shunt resistor. It features four voltage measurements via internal calibrated resistor dividers or external dividers. It includes an internal temperature sensor, allowing close proximity battery temperature measurements, plus four extern al temperature sensor inputs.
The MM9Z1_638 features the LIN 2.2 protocol and physical interface, as well as an msCAN protocol controller, for interfacing to automotive buses.
The MM9Z1_638 is able to supply and control external CAN interfaces.
This device is powered by SMARTMOS technology.
MM9Z1J638主要特性:
• Wide range battery current measurement; On-chip temperature measurement
• Four battery voltage measurements with internal resistor dividers, and up to five direct voltage measurements for use with an external resistor divider
• Measurement synchronization between voltage channels and current channels
• Five external temperature sensor inputs with internal supply for external sensors
• Low-power modes with low-current operation
• Multiple wake-up sources: LIN, timer, high-voltage input, external CAN interface, and current threshold and integration
• Precision internal oscillator and connections for external crystal
• LIN 2.2/ 2.1/ 2.0 protocol and physical interface
• msCAN protocol controller, and supply capability for 8 and 14 pin CAN ...