RY2203XT4 One Cell Li-ion and Li-poly Battery Protection IC

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 

• 13mΩ Low RSS(ON) Internal Power MOSFET 

• Delay Times are generated inside 

• High-accuracy Voltage Detection 

• Low Current Consumption Operation Mode: 2.0μA typ. Power-down Mode: 1.0μA typ. 

• Only One External Capacitor Required 

• Available in SOT-243 Package • -40°C to +85°C Temperature Range

Applications 

 • One-Cell Li-ion Battery Pack 

 • Power Bank  

• One-Cell Li-poly Battery Pack  

• IOT Sensor/Electronic Toys 

General Description  

The RY2203XT4 is a high integration solution for lithium-ion/polymer battery protection. RY2203XT4 contains  internal power MOSFET, high-accuracy voltage detection circuits and delay circuits. RY2203XT4 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 long-term battery life. The RY2203XT4 requires a minimal number of readily available, external components and is available in a space  saving SOT-243 packages. 

Typical Application Circuit

Website：www.baitaishengshi.com