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AD7284 - Battery Monitoring System

General Description

The AD7284 contains all the functions required for the generalpurpose monitoring of stacked Li-Ion batteries, as used in hybrid electric vehicles and battery backup applications.

Key Features

  • 8 analog input channels, integrated secondary monitor ±3 mV maximum cell voltage accuracy, TUE, 14-bit ADC Very low measurement latency across 96 cells Stack voltage measurement ±16 mV typical battery stack voltage (TUE) accuracy Cell balancing interface, with individually programmable on time 4 auxiliary analog input channels, 14-bit ADC Suitable for thermistor inputs and external diagnostics Buffered reference output for ratiometric measurements Internal temperature sensor VDD operating range:.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Data Sheet FEATURES 8 analog input channels, integrated secondary monitor ±3 mV maximum cell voltage accuracy, TUE, 14-bit ADC Very low measurement latency across 96 cells Stack voltage measurement ±16 mV typical battery stack voltage (TUE) accuracy Cell balancing interface, with individually programmable on time 4 auxiliary analog input channels, 14-bit ADC Suitable for thermistor inputs and external diagnostics Buffered reference output for ratiometric measurements Internal temperature sensor VDD operating range: 10 V to 40 V On-chip 5 V regulator Watchdog timer IDD matching current: 100 μA Robust, proprietary daisy-chain interface SPI to host controller CRC protection on read and write commands 2 general-purpose outputs 64-lead low profile quad flat package, exposed pad (LQFP_EP) Junct