AAT3681AIJS-4.2-T1 View Datasheet(PDF) - Analog Technology Inc

Part Name

Description

MFG CO.

AAT3681AIJS-4.2-T1

500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

Analog Technology Inc 

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System Operation Flow Chart

AAT3681A

500mA USB Port or AC Adapter

Lithium-Ion/Polymer Battery Charger

Enable

Power On Reset

No

Yes

Power Input

Voltage

VIN > VUVLO

Yes

Shut Down

Fault Conditions

Yes

Monitoring

OV, OT

No (AAT3681A-1)

No (AAT3681A,

AAT3681A-2,

AAT3681A-3)

Preconditioning

Test

Yes

VMIN > VBAT

Preconditioning

(Trickle Charge)

No

Recharge Test

VRCH > VBAT

No

Constant

Yes

Current Phase Test

Yes

Current Charge

VBAT_EOC > VBAT

Mode

No

Yes

Voltage Phase Test

IBAT > ITERM

No

(AAT3681A-3)

Constant

Voltage Charge

Mode

No (AAT3681A,

AAT3681A-1,

AAT3681A-2)

Charge Completed

Charge

Control

10

3681A.2007.10.1.2

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