VIPer12ADIP / VIPer12AS

4/15

SUPPLY SECTION

Note: 1. These test conditions obtained with a resistive load are leading to the maximum conduction time of the device.

OSCILLATOR SECTION

PWM COMPARATOR SECTION

OVERTEMPERATURE SECTION

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Start Up Charging

Current

-1

mA

Start Up Charging

Current

in Thermal Shutdown

0mA

Operating Supply Current

Not Switching

35

mA

Operating Supply Current

Switching

(Note 1)

4.5

mA

Restart Duty Cycle

(See fig. 3)

16

%

Shutdown Threshold

(See fig. 2 & 3)

7

8

9

V

(See fig. 2 & 3)

13

14.5

16

V

Hysteresis

(See fig. 2)

5.8

6.5

7.2

V

Threshold

38

42

46

V

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Oscillator Frequency

Total Variation

54

60

66

kHz

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

(See fig. 4)

320

Peak Current Limitation

(See fig. 4)

0.32

0.4

0.48

A

(See fig. 4)

0.9

mA

FB Pin Input Impedance

(See fig. 4)

1.2

k

Ω

Current Sense Delay to

Turn-Off

200

ns

Blanking Time

500

ns

Minimum Turn On Time

700

ns

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Thermal Shutdown

Temperature

(See fig. 5)

140

170

°C

Thermal Shutdown

Hysteresis

(See fig. 5)

40

°C