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AAT3681AIJS-4.2-1-T1

更新时间： 2024-02-23 07:48:13

品牌	Logo	应用领域
ANALOGICTECH		电池
页数	文件大小	规格书
17页	204K
描述
500mA USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

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AAT3681A

500mA USB Port or AC Adapter

Lithium-Ion/Polymer Battery Charger

Electrical Characteristics

V_ADP= 5V, T_A= -25°C to +85°C, unless otherwise noted. Typical values are T_A= 25°C.

Symbol Description

Operation

Conditions

Min

Typ Max Units

V_ADP

V_UVLO

I_OP

Adapter Voltage Range

Under-Voltage Lockout (UVLO)

UVLO Hysteresis

4.0

7.5

Rising Edge

150

0.5

Operating Current

Charge Current = 200mA

_BAT= 4.25V, V_EN= GND

(AAT3681A, AAT3681A-1)

_BAT= 4.25V, V_EN= 5V

(AAT3681A-2, AAT3681A-3)

Reverse Leakage Current from BAT Pin V_BAT= 4V, ADP Pin Open

Voltage Regulation

I_SHUTDOWNShutdown Current

0.3

0.4

µA

I_LEAKAGE

V_{BAT EOC}

End of Charge Accuracy

4.158

2.85

4.20 4.242

0.5

ΔV_CH/V_CHOutput Charge Voltage Tolerance

AAT3681A, AAT3681A-2,

and AAT3681A-3 Only

V_MIN

Preconditioning Voltage Threshold

3.0

3.15

Measured from V_{BAT EOC}

V_RCH

Battery Recharge Voltage Threshold

AAT3681A, AAT3681A-1,

and AAT3681A-2 Only

-0.1

Current Regulation

I_CH

ΔI_CH/I_CH

V_SET

Charge Current Programmable Range

Charge Current Regulation Tolerance

ISET Pin Voltage

500

800

K_{I_A}

Current Set Factor: I_CH/I_SET

Charging Devices

R_DS(ON)

Charging Transistor On Resistance

V_ADP= 5.5V

0.6

Logic Control/Protection

V_EN(H)

V_EN(L)

V_STAT

I_STAT

Input High Threshold

Input Low Threshold

Output Low Voltage

STAT Pin Current Sink Capability

Over-Voltage Protection Threshold

1.6

0.4

STAT Pin Sinks 4mA

V_OVP

4.4

I_CH= 100mA; AAT3681A,

I_TK/I_CH

Pre-Charge Current

AAT3681A-2, and

AAT3681A-3 Only

AAT3681A, AAT3681A-1, and

AAT3681A-2 Only

_TERM/I_CH

Charge Termination Threshold Current

1. The AAT3681A output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -25°C to +85°C

temperature range is guaranteed by design.

2. Achievable charge current may be limited by power dissipation capability of the package under certain operating conditions. See

“Thermal Considerations” section of this datasheet.

3681A.2007.10.1.2

1 2 345 6 7...17

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