RY2202 Li-ion and Li-poly Battery Protection IC

2025-09-18 来源：作者：深圳市佰泰盛世科技有限公司

RY2202 One Cell Li-ion and Li-poly Battery Protection IC

1、Features

• Protection of Charger Reverse Connection

• Protection of Battery Cell Reverse Connection

• 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

• 54mΩ Low RSS(ON) Internal Power MOSFET

• Delay Times are generated inside

• High-accuracy Voltage Detection

• Low Current Consumption Operation Mode: 0.7μA typ. Power-down Mode: 0.5μA typ.

• Only One External Capacitor Required

• Available in SOT23-6 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 RY2202 is a high integration solution for lithium-ion/polymer battery protection. RY2202 contains internal power MOSFET, high-accuracy voltage detection circuits and delay circuits. RY2202 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 RY2202 requires a minimal number of readily available, external components and is available in a space saving

SOT23-6 package

4、Website：www.baitaishengshi.com

5、Typical Application Circuit

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