DESCRIPTION

The A4004 series product is a high integration solution for lithium-ion/polymer battery protection. A4004 contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits. A4004 is put into a small package and only one external component makes it an ideal solution in limited space of battery pack. A4004 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.

The A4004 is available in DFN6(2x3) package.

FEATURES

 Protection of Charger Reverse Connection

 Protection of Battery Cell Reverse Connection

 Integrate MOSFET

 Over temperature Protection

 Two step Overcurrent Detection:

Over

discharge Current

Load Short Circuiting

 Charger Detection Fu nction

 0V Battery Charging Function

 High accuracy Voltage Detection

 Low Current Consumption

 Operation Mode: 2.5uA typ

 Power down Mode: 0.1uA typ

 Available in DFN6(2x3) p ackage

APPLICATION

 One-Cell Lithium-ion Battery Pack

 Lithium-Polymer Battery Pack