AAT3682 데이터 시트보기 (PDF) - Advanced Analogic Technologies

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AAT3682

Lithium-Ion/Polymer Battery Charger

Advanced Analogic Technologies 

3682.2006.12.1.3

AAT3682

Lithium-Ion/Polymer Linear Battery Charger

PoPwoewr eOrnORneRseest et

UVLO

No

VCC > VUVLO

SShMuhMtuoDtodDdeoewownn

Yes

TTeemFmFpapeauerultarltatuturere

Temperature Test

No

TS > VTS1

TS < VTS2

Yes

Preconditioning Test Yes

VMIN > VBAT

No

Current Phase Test

Yes

VCH > VBAT

< VRCH

No

Voltage

Phase Test

VTERM

RSENSE

< IBAT

Yes

No

ChCaLhragaLtecraghCtecOohCmfOfopmflfeptleete

Low Current

CoLnodwitiConuirnregnt

CCohnadrigtieoning

(TrickleChCahragrege)

CCCMhCuMahorurardorgerredigneneitngntg

CVCMhVoMahlootraaodlgtrgadeignegeigneg

Figure 1: AAT3682 Operational Flow Chart.

Preconditioning

(Trickle Charge)

Phase

Constant Current

Phase

Constant Voltage

Phase

Output Charge

Voltage (VCH)

Preconditioning

Voltage Threshold

(VMIN)

Regulation

Current

(ICHARGE(REG))

Trickle Charge

and Termination

Threshold

Figure 2: Typical Charge Profile.

9

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