NCP1237

http://onsemi.com

7

Characteristics

Unit

Max

Typ

Min

Symbol

Test Condition

LATCH−OFF INPUT

High threshold

2.37

2.5

2.63

V

Low threshold

0.76

0.8

0.84

V

Current source for direct NTC connection

During normal operation

During soft−start

78

156

91

182

104

208

mA

Blanking duration on high latch detection

40

55

70

ms

Blanking duration on low latch detection

−

400

−

ms

Clamping voltage

1.0

1.8

1.2

2.3

1.4

2.8

V

TEMPERATURE SHUTDOWN

Temperature shutdown

135

150

165

°C

Temperature shutdown hysteresis

20

30

40

°C

6. Internal supply current only, current in FB pin not included (current flowing through GND pin only).