AAT3685(2006) Просмотр технического описания (PDF) - Analog Technology Inc

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производитель

AAT3685
(Rev.:2006)

Lithium-Ion/Polymer Battery Charger

Analog Technology Inc 

AAT3685

Lithium-Ion/Polymer Battery Charger

Electrical Characteristics1

VADP = 5V, TA = -25°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.

Symbol Description

Conditions

Min

Typ

Max Units

Operation

ADP/USB Input Voltage Range

4.0

5.5 V

VUVLO

Under-Voltage Lockout

Under-Voltage Lockout Hysteresis

Rising Edge

3.0

V

150

mV

IOP

ISLEEP

ILeakage

Operating Current

Sleep Mode Current

Reverse Leakage Current from

BAT Pin

CC Charge Current = 500mA

VBAT = 4.25V

VBAT = 4V, ADP/USB Pin

Open

0.75

1.5 mA

0.3

1.0 µA

1.0

µA

Voltage Regulation

VBAT_EOC1 End of Charge Voltage Accuracy

4.158

4.2

4.242 V

∆VBAT/VBAT EOC Voltage Tolerance

0.5

%

VMIN

Preconditioning Voltage Threshold

2.8

3.0

3.15 V

VRCH Battery Recharge Voltage Threshold

VBAT_EOC - 0.1

V

VADP/USB_CHR Charge Reduction Regulation

No Connection on CHR Pin 4.3

4.5

4.64 V

VCHR CHR Pin Voltage Accuracy

1.9

2.0

2.1 V

Current Regulation

ICH

∆ICH/ICH

Charge Current

Charge Current Regulation

Tolerance

50

1000 mA

10

%

VSETH SETH Pin Voltage

VSETL SETL Pin Voltage

KIUH

Current Set Factor: ICHARGE/ISETH

KIUL

Current Set Factor: ICHARGE/ISETL

Charging Devices

CC Mode

CC Mode

2.0

V

2.0

V

2000

2000

RDS(ON)U

Charging MOSFET Transistor

On Resistance

VIN = 5.5V

0.4

0.5

0.65 Ω

1. The AAT3685 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.

4

3685.2006.02.1.2

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