srinivasandelta
Hey,
From your question we assume that you are trying to develop an efficient battery
operated application using the AVR Device for which you need the Source code and tools.
Unfortunately I do not have the ready-made application note for the AVR device
mentioned in the request. However, it can be implemented using any AVR microcontroller with A/D converter, PWM output and enough program memory to store the desired charging algorithm.
You can refer the following documents to have a general idea for implementing battery operated applications along with source code and schematics:
www.atmel.com/avr/ -->Application Notes-->
-->1) AVR450: Battery Charger for SLA, NiCd, NiMH and Li-ion Batteries
-->2) AVR453: Smart Battery Reference Design
-->3) AVR454: Users Guide - ATAVRSB100 - Smart Battery Development kit
Refer the link below for more information on AVR® 8-Bit RISC devices used in Battery Management Applications:
http://www.atmel.com/products/avr/bm/default.asp?family_id=607
1)AVR352: Using the Coulomb Counting ADC
2)AVR353: Voltage Reference Calibration and Voltage ADC Usage
3)AVR120: characterisation and Calibration of the ADC on an AVR
http://www.atmel.com/dyn/resources/prod_documents/doc7927.pdf
Hope this serves your need and good luck with all your future AVR works
with regards,
AVR-MAN