Symbol

Description

Conditions

Min

Typ

Max

Units

Logic Control / Protection

Input High Threshold

1.6

V

Input Low Threshold

0.4

V

EN Input Current

AAT3687-1, AAT3687-2 Only;

10

μA

Output Low Voltage

ADPP# Pin Sinks 500μA

0.4

V

Preconditioning and Constant

3.0

Hours

Current Mode Time Out

Preconditioning Time Out

AAT3687, AAT3687-1 Only;

25

Minutes

Constant Voltage Mode Time Out

3.0

Hours

Output Low Voltage

STAT Pin Sinks 4mA

0.4

V

STAT Pin Current Sink Capability

8.0

mA

Over-Voltage Protection Threshold

4.4

V

Pre-Charge Current

AAT3687, AAT3687-1 Only

10

%

Charge Termination Threshold

7.5

%

Current

Current Source from TS Pin

70

80

90

μA

TS1

TS Hot Temperature Fault

Threshold

310

330

350

mV

Hysteresis

15

TS2

TS Cold Temperature Fault

Threshold

2.2

2.3

2.4

V

Hysteresis

10

mV

DATA Pin Sink Current

DATA Pin is Active Low State

3

mA

ADPP# Current Sink

ADPP# Pin is Active Low State

8

mA

Input High Threshold

1.6

V

Input Low Threshold

0.4

V

Status Request Pulse Width

Status Request

200

ns

System Clock Period

50

μs

Data Output Frequency

20

kHz

Thermal Loop Regulation

90

°C

Thermal Loop Entering Threshold

110

°C

Thermal Loop Exiting Threshold

85

°C

Over-Temperature Shutdown

145

°C

Threshold

AAT3687

Lithium-Ion/Polymer Battery Charger

3687.2006.10.1.7

5

1. The AAT3687 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.