Atmel Automotive Solutions

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Atmel Automotive Solutions

Battery Solutions

Li-ion Battery Management

With the ATA6870N, Atmel provides a measurement and monitoring circuit designed for high-cell-count Li-ion battery

systems in industrial and automotive applications such as electrical and hybrid electrical vehicles, ebikes or uninteruptible

power supplies. It monitors the battery-cell voltage and the battery-cell temperature with a 12-bit ADC. The circuit also

provides active and passive charge-balancing capability for each battery cell. Up to 16 circuits (96 cells) can be cascaded in

one string.

Intelligent Battery Sensor

standard lead-acid batteries. Designed for intelligent battery sensor applications, the devices determine the state of charge

and state of health for 12V standard lead-acid batteries by measuring the battery voltage, current and temperature.

For cars with idle-stop-go function, this feature is mandatory to retain sufficient battery energy for a guaranteed engine

start. Combined with the Atmel ATA6870N Li-ion battery monitor IC, it forms an ideal system solution for replacing

12V standard lead-acid batteries with Li-ion batteries.

Part No.

Description

Package

ATA6870N

Battery-cell Measuring, Power Supply and Charge Balancing Circuit for Multi-cell

Li-ion Battery Stacks

QFN48

ATmega32HVE2/

ATmega64HVE2

Intelligent Battery Sensor System with Two 17/18bit

∑∆ ADCs, Programmable Gain Amplifier, Power Supply,

LIN Trx, 8bit AVR Core with 32bit Math. Extension and 32k/64k Flash Memory

QFN48