DESCRIPTION The DW09 series product is a high integration solution for lithium-ion/polymer battery protection. DW09 contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits. DW09 is put into a small package and only one external component makes it an ideal solution in limited space of battery pack. DW09 has all the protection functions required in the battery application including overcharging, over-discharging, overcurrent and load short circuiting protection etc. The accurate safe and full utilization charging. The low standby current drains little current from the cell while in storage. The device is only targeted for digital cellular phones, but also for any other Li-ion and Li-Poly battery-powered information appliance requiring long-term battery life. FEATURE Protection of Battery Cell Reverse Connection Integrate MOSFET Over-temperature Protection Two-step Overcurrent Detection: Over-discharge Current Load Short Circuiting Charger Detection Function 0V Battery Charging Function High-accuracy Voltage Detection Low Current Consumption Operation Mode: 4uA typ Power-down Mode: 2.0uA typ APPLICATIONS One-Cell Lithium-ion Battery Pack Lithium-Polymer Battery Pack