XB5353A

The XB5353A product is a high integration solution for lithiumion/polymer battery protection. XB5353A contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits. XB5353A is put into an ultra-small SOT23-5 package and only one external component makes it an ideal solution in limited space of battery pack. XB5353A has all the protection functions required in the battery application including overcharging, overdischarging, 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.

Applications

• One-Cell Lithium-ion Battery Pack
• Lithium-Polymer Battery Pack

Key features

• Protection of Charger Reverse Connection
• Protection of Battery Cell Reverse Connection
• Integrate Advanced Power MOSFET with Equivalent of 54mΩ RSS(ON)
• Ultra-small SOT23-5 Package
• Only One External Capacitor Required
• Over-temperature Protection
• Overcharge Current Protection
• Two-step Overcurrent Detection:
• Overdischarge Current
• Load Short Circuiting
• Charger Detection Function
• 0V Battery Charging Function
• Delay Times are generated inside
• High-accuracy Voltage Detection
• Low Current Consumption
• Operation Mode: 2.8μA typ.
• Power-down Mode: 1.5μA typ.
• RoHS Compliant and Lead (Pb) Free