[原创] ADI ADuCM331汽车12V电池系统检测方案

ADI公司的ADuCM331是用于汽车系统的综合精密电池检测器,集成了8kSPS数据采集系统,包括两个高性能多路sigma-delta (Σ-Δ) ADC，32位ARM Cortex™-M3 MCU和128kB程序闪存和4kB数据闪存,具有检测,处理和诊断功能,是汽车12V电池系统完整的解决方案.本文介绍了ADuCM331优势和特点,框图,典型应用电路图以及评估板EVAL-ADUCM331QSPZ主要特性,电路图和PCB元件布局图.

The ADuCM331 is a fully integrated, 8 kSPS, data acquisition system that incorporate dual, high performance multichannel sigma-delta (Σ-Δ) ADCs, 32-bit ARM Cortex™-M3 processor and flash. The ADuCM331 has 128 kB program flash. and 4 kB data flash. The ADuCM331 is a complete system solution for battery monitoring in 12 V automotive applications. The ADuCM331 integrates all of the required features to precisely and intelligently monitor, process, and diagnose 12 V battery parameters including battery current, voltage, and temperature over a wide range of operating conditions.

Minimizing external system components, the device is powered directly from a 12 V battery. On-chip, low dropout (LDO) regulators generate the supply voltage for two integrated Σ-Δ ADCs. The ADCs precisely measure battery current, voltage, and temperature to characterize the state of the health and the charge of the car battery.
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