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