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 longterm battery life.

    The RY2202 requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package.

RY2202 Features/特性：

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

RY2202 Applications/应用：

One-Cell Li-ion Battery Pack

Power Bank

One-Cell Li-poly Battery Pack

IOT Sensor/Electronic Toys

RY2202 Typical Application Circuit：

RY2202 Pin Description：

RY2202 Order Information：

Marking	Part No.	Model	Description	Package	T/R Qty
MLYLL	70702031	RY2202	RY2202 One Cell Li-ion and Li-poly Battery Protection IC, 4.1A, SOT23-6	SOT23-6	3000 PCS

RY2202 Functional Block Diagram：