R2A20052NS_15 Datasheet, PDF (1/20 Pages) Renesas Technology Corp – Lithium-Ion Battery Charger IC with Auto load current distribution

R2A20052NS
Lithium-Ion Battery Charger IC with Auto load current distribution
Datasheet
R03DS0079EJ0200
Rev.2.00
May 7 ,2013
Description
R2J20052NS is a semiconductor integrated circuit designed for Lithium-ion battery charger control IC.
Built-in constant current and constant voltage control circuit suitable to charge Lithium-ion battery.
Built-in dual input (AC adaptor and USB) and dual output (system and battery) control circuit allows to supply the system
power and the battery charging power simultaneously from AC adaptor or USB power input.
The input current limitation of AC adaptor and USB can be set individually.
Built-in Low Ron MOSFET between the battery and the system realizes highly efficient power supply from the battery to
the system when both AC adaptor and USB are not connected or the system load exceeds input current limit.
Features
- Available for 1cell Li-ion Battery
- Adaptor or USB auto source selection
- Auto power path management between the system power supply and the battery charge
- Built-in Low Ron MOSFET between the system and the battery (38mohm)
- Input current limitation (ADP:2Amax, USB:100/500/900/1800mA)
- Compliance with PSE (Adjustable CC current/CV voltage by I2C)
- Charge control voltage : 4.2V+/-30mV (+/-0.7% precision)
- CC/CV charge control
- Chip temperature detection
- Thermal shutdown
- Safety timer
- DSC
- Mobile phone
- PDA
- Portable audio player
- Handheld game machine
Application
R03DS0079EJ0200 Rev.2.00
May 7 ,2013
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