DESCRIPTION

The A4059A provides a high integration solution for lithium-ion/polymer battery protection. The A4059A contains advanced power MOSFET, high-accuracy voltage detection circuits and delay circuits.

The A4059A has all the protection functions required in the battery application including over-charging, over-discharging, over-current and load short circuiting protection etc. The low standby current drains little current from the cell while in storage.

The device is targeted for any Li-Ion and Li-Poly battery-powered information appliances requiring long-term battery life.

The A4059A is available in SOT-25 package.

FEATURES

⚫ Protection of Charger Reverse Connection

⚫ Protection of Battery Cell Reverse Connection

⚫ High accuracy Voltage Detection

⚫ Charger Detection Function

⚫ 0V Battery Charging Enable/Disable Function

⚫ Int egr ate Advanced Power MOSFET(50mΩ)

⚫ Low Current Consumption

Operation Mode: 3.0μA typ.

⚫ Available in SOT-25 p ackage

APPLICATION

⚫ One Cell Lithium ion Battery Pack

⚫ Lithium Polymer Battery Pack