锂电池充电保护IC驱动芯片

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锂电池充电保护IC驱动芯片



DW07



GENERAL DESCRIPTION

The DW07A series product is a high integration solution for lithium-

手电筒锂电池保护IC 充电宝保护IC 保护IC 锂电池驱动

ion/polymer battery protection. DW07A contains advanced power MOSFET,



high-accuracy voltage detection circuits and delay circuits.DW07A is put

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into an ultra-small SOT23-5 package and only one external component



makes it an ideal solution in limited space of battery pack.

DW07A 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 long- term battery life.



Typical Application Circuit



FEATURES

Protection of Charger Reverse Connection

Protection of Battery Cell Reverse Connection

Integrate Advanced Power MOSFET with Equivalent of 54m? RDS(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:



2.8 μA typ.

Power-down Mode: 0.1 μA max.

RoHS Compliant and Lead (Pb) Free



APPLICATIONS

?One-Cell Lithium-ion Battery Pack

?Lithium-Polymer Battery Pack


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