3

FN6430.0

February 14, 2007

TRICKLE CHARGE THRESHOLD

Trickle Charge Threshold Voltage

2.1

2.3

2.5

V

V2P8 PIN VOLTAGE

V2P8-Pin Voltage

2.7

2.9

3.1

V

TEMPERATURE MONITORING

Charge Current Foldback Threshold (Note 4)

-100

-

°C

Current Foldback Gain (Note 4)

-100

-

mA/°C

OSCILLATOR

Oscillation Period

2.4

3.0

3.6

ms

LOGIC OUTPUTS

STATUS Logic Low Sink Current

Pin Voltage = 0.8V

5

-

-

mA

STATUS Leakage Current

-

-

1

µA

EN Input Logic High

2.0

-

3.3

V

EN Input Logic Low

--

0.8

V

EN Pin Current When Driven Low

-

-

100

µA

NOTES:

3. The accuracy includes all errors except the programming resistance tolerance. The actual charge current may be affected by the thermal

foldback function if the thermal dissipation capability is not enough or by the on resistance of the power MOSFET if the charger input voltage is

too close to the output voltage.

4. Guaranteed by characterization.

Electrical Specifications

guaranteed over 0°C to +70°C Ambient Temperature with a supply voltage in the range of 4.3V to 6.5V, unless

otherwise noted. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

FIGURE 1. CHARGER OUTPUT VOLTAGE vs CHARGE

CURRENT

FIGURE 2. CHARGER OUTPUT VOLTAGE vs TEMPERATURE

4.1975

4.1980

4.1985

4.1990

4.1995

4.2000

4.2005

4.2010

4.2015

0

0.3

0.6

0.9

1.2

1.5

CHARGE CURRENT (A)

4.190

4.192

4.194

4.196

4.198

4.200

4.202

4.204

4.206

4.208

4.210

0

20

40

60

80

100

120

TEMPERATURE (°C)

CHARGE CURRENT = 50mA

ISL9203A