LT1942

4

1942fa

The

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ELECTRICAL CHARACTERISTICS

PGOOD Leakage Current

0

0.1

µA

PGOOD Sink Current

0.5

0.7

mA

CT Charging Current

12

µA

CT Reference Voltage

0.8

V

0

1

µA

10

15

mA

Minimum D3 Voltage for Proper Output

3

V

Disconnect PNP Operation

D4 LED Open-Circuit Voltage

38

42

44

V

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LT1942 is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical controls.

Note 3: Current flows out of the pin.

Note 4: Current limit guaranteed by design and/or correlation to static test.

TYPICAL PERFOR A CE CHARACTERISTICS

TEMPERATURE (

°C)

–40

1.26

1.27

1.28

20

60

1942 G01

1.25

1.24

–20

0

40

80

100

1.23

1.22

TEMPERATURE (

°C)

–40

–155

–154

–152

–151

–150

–145

–148

0

40

60

1942 G02

–153

–147

–146

–149

–20

20

80

100

TEMPERATURE (

°C)

–40

1.26

1.27

1.28

20

60

1942 G01

1.25

1.24

–20

0

40

80

100

1.23

1.22

NFB2 Voltage