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Renesas releases compact Li-ion battery charger control IC

Posted: 30 Nov 2005     Print Version  Bookmark and Share

Keywords:battery charger  lithium ion 

Anotherm

Renesas Technology Corp. has announced the M62245FP lithium-ion battery charger control IC, which is designed for products like digital still cameras. The IC has a smaller package and pin count than its predecessor, the M62244FP. The M62245FP employs a 16-pin SSOP instead of the 20-pin SSOP of the M62244FP. This results in a reduction of about 23 per cent in the mounting area, making it possible to design more compact battery chargers.

It also provides all the protection functions of the M62244FP. These include adapter detection; over-discharge, excess-voltage, and over-current protection, thermal protection and three timers for monitoring the charge time. This makes it possible to build a lithium-ion battery charger incorporating complex safety features using the M62245FP and a small number of additional parts. Furthermore, the M62245FP has a charger control voltage of 4.2 V ±30 mV, enabling high-precision battery charging.

The M62245FP uses a battery connection detection method that does not employ a thermistor terminal. It can therefore be used in chargers for battery packs lacking such terminals, which have recently appeared on the market.

Sample shipments of the M62245FP will begin December 2005 in Japan.




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