5

FN9147.8

September 22, 2005

OSCILLATOR

Charge Current

143

156

170

μA

1.925

2

2.075

V

Discharge Current Gain

45

-

65

μA/μA

0.75

0.8

0.85

V

2.70

2.80

2.90

V

SOFT-START

Charging Current

45

-

68

µA

SS Clamp Voltage

3.8

4.0

4.2

V

Overcurrent Shutdown Threshold Voltage

(Note 4)

-

3.9

-

V

Overcurrent Discharge Current

12

15

23

μA

Reset Threshold Voltage

(Note 4)

0.25

0.27

0.30

V

OUTPUT

High Level Output Voltage (VOH)

-0.5

2.0

V

Low Level Output Voltage (VOL)

-

0.5

1.0

V

Rise Time

-

17

60

ns

Fall Time

-

20

60

ns

THERMAL PROTECTION

Thermal Shutdown

(Note 4)

-

145

-

°C

Thermal Shutdown Clear

(Note 4)

-

130

-

°C

Hysteresis, Internal Protection

(Note 4)

-

15

-

°C

NOTES:

3. Specifications at -40°C are guaranteed by design, not production tested.

4. Guaranteed by design, not 100% tested in production.

Electrical Specifications

Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL6744