RY2341 is a high voltage 40V over voltage protector (OVP) which has a low on resistance, by only change the external connecting. It can be used as an OVP device or a high voltage switch. RY2341 consists of a charge pump, a configurable power MOSFET, a voltage reference, a gate driver and some logics and protection modules. RY2341 can react to an input surge very fast and shut off the switch in less than 0.1us. RY2341 is available in SOT-23-3,SOT23-6 package
The RY2231 is a high integration solution for lithium-ion/polymer battery protection. RY2231 contains internal power MOSFET, high-accuracy voltage detection circuits and delay circuits. RY2231 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. Thelow standby current drains little current from the cell while in storage.