RY2203 Li-ion and Li-poly Battery Protection IC

1、Features 

? Protection of Battery Cell Reverse Connection without External load 

? Over-temperature Protection 

? Overcharge Current Protection 

? Two-step Overcurrent Detection: Over Discharge Current Load Short Circuiting 

? Charger Detection Function 

? 0V Battery Charging Function 

? RoHS Compliant and Lead (Pb) Free 

? 17.5mΩ Low RSS(ON) Internal Power MOSFET 

? Delay Times are generated inside 

? High-accuracy Voltage Detection 

? Low Current Consumption Operation Mode: 3.9μA typ. Power-down Mode: 2.2μA typ. 

? Only One External Capacitor Required 

? Available in CPC5 Package 

? -40°C to +85°C Temperature Range

2、Applications 

? One-Cell Li-ion Battery Pack 

? Power Bank 

? One-Cell Li-poly Battery Pack

? IOT Sensor/Electronic Toys

3、General Description

    The RY2203 is a high integration solution for lithium-ion/polymer battery protection. RY2203 contains internal power MOSFET, high-accuracy voltage detection circuits and delay circuits. RY2203 has all the protection functions required in the battery application including overcharging, over discharging, overcurrent and load short circuiting protection etc. The accurate overcharging detection voltage ensures safe and full utilization charging. The low standby current drains little current from the cell while in storage. The device is not only targeted for digital

cellular phones, but also for any other Li-Ion and Li-Poly battery-powered information appliances requiring longterm battery life.

4、Website：www.baitaishengshi.com

5、Typical Application Circuit