R2A20056BM_15 Datasheet, PDF (1/38 Pages) Renesas Technology Corp – Lithium-Ion Battery Charger IC with Auto Load Current Distribution

R2A20056BM
Lithium-Ion Battery Charger IC with Auto Load Current Distribution
Datasheet
R03DS0075EJ0100
Rev. 1.23
Apr 15,2013
Description
R2A20056BM is a semiconductor integrated circuit designed for Lithium-ion battery charger control IC.
Built-in Input current limitation circuit compliant with USB requirements and dual output (system and battery)
control circuit allows to supply the system power and the battery charging power simultaneously from input
power.
Features
- Allows to USB charging
- Automatic USB detection and automatic input current limitation setup
(USB battery charging 1.2 and VBUS divided port)
- Input current limitation is programmable by I2C
I²C 100mA/500mA/1000mA/1500mA/1800mA/Limitless/Suspend
- Weak battery charge function
- High precision charge control voltage : 4.2V+/-21mV (+/-0.5%)
- Auto load current distribution control
- Auto power management between system load and battery charge within input current limitation
- Built-in low Ron path switch (30mohm)
- System output voltage regulation
Default position : V_IN pass-through
Switching between V_IN pass-through and VSYS45
- Compliance with JEITA guideline
- Thermistor I/F detects battery temp. to control CC/CV parameters by built-in charge profile
- I2C interface
- Adjustable charging parameters
- Protection function
- Input UVLO/OVLO
- Battery over voltage detection
- Timer
- Chip temperature detection - Thermal shutdown
- Recharge function
- Gate control for system Load SW (/SG)
- Input power OK output (/POK)
- Charge State output (/STAT)
- Digital Still Camera
- Digital Video Camera
- Mobile Phone
- PDA/PND
- Tablet/Note PC
- Portable Audio Player
- Portable Game Machine
R03DS0075EJ0100 Rev. 1.23
Apr 15,2013
Application
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