VIPER22AS-E datasheet(5/20 Pages) STMICROELECTRONICS

5 / 20 page

VIPer22ADIP/ VIPer22AS - E

Electrical Characteristics

Rev1

5/20

Table 5.

Oscillation section

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

FOSC

Oscillator frequency

total variation

VDD = VDDoff ... 35V;

TJ = 0 ... 100°C

kHz

Table 6.

PWM Comparator section

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

GID

IFB to ID current gain

(See Figure 11 on page 13)

560

IDlim

Peak current

limitation

VFB = 0V

(See Figure 11 on page 13)

0.56

0.7

0.84

IFBsd

IFB Shutdown current (See Figure 11 on page 13)

0.9

RFB

FB Pin input

impedance

ID = 0mA

(See Figure 11 on page 13)

1.2

Ω

Current sense delay

to turn-OFF

ID = 0.4A

200

Blanking time

500

tONmin

Minimum Turn-ON

time

700

Table 7.

Overtemperature section

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

TSD

Thermal shutdown

temperature

(See Figure 12 on page 13)

140

170

°C

THYST

Thermal shutdown

hysteresis

(See Figure 12 on page 13)

°C

Table 8.

Typical Power Capability (1)

Above power capabilities are given under adequate thermal conditions

Mains type

SO-8

DIP-8

European (195 - 265 Vac)

12W

20W

US / Wide range (85 - 265 Vac)

12W

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