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AAT3688

USB Port Lithium-Ion/Polymer Battery Charger

Advanced Analogic Technologies 

BatteryManagerTM

PRODUCT DATASHEET

AAT3688

USB Port Lithium-Ion/Polymer Battery Charger

Electrical Characteristics1

VADP = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.

Symbol

Description

Logic Control / Protection

VUSBSEL(H)

VUSBSEL(L)

VEN(H)

VEN(L)

VSTAT

ISTAT

VOVP

Input High Threshold

Input Low Threshold

Input High Threshold

Input Low Threshold

Output Low Voltage

STAT Pin Current Sink Capability

Over-Voltage Protection Threshold

ITK/ICHG

Pre-Charge Current

ITERM/ICHG

ITERM/ICHG

ITS

Charge Termination Threshold Current

Charge Termination Threshold Current

Current Source from TS Pin

TS1

TS Hot Temperature Fault

TS2

I_DATA

VDATA(H)

VDATA)(L)

SQPULSE

tPERIOD

fDATA

TOVSD

TS Cold Temperature Fault

DATA Pin Sink Current

Input High Threshold

Input Low Threshold

Status Request Pulse Width

System Clock Period

Data Output Frequency

Over-Temperature Shutdown Threshold

Conditions

STAT Pin Sinks 4mA

For USBH Mode

For USBL Mode

For USBH Mode

For USBL Mode

Threshold

Hysteresis

Threshold

Hysteresis

DATA Pin is Active Low State

Status Request

Min Typ Max Units

1.6

V

0.4

V

1.6

V

0.4

V

0.4

V

8.0

mA

4.4

V

10

%

50

7.5

%

35

%

70

80

90

μA

310 330 350

15

mV

2.2

2.3

2.4

V

10

mV

3.0

mA

1.6

V

0.4

V

200

ns

50

μs

20

kHz

145

°C

1. The AAT3688 output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -40°C to +85°C temperature range is guaranteed by

design.

3688.2007.12.1.6

www.analogictech.com

5

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