VIPER35 datasheet(10/44 Pages) STMICROELECTRONICS

10 / 44 page

Electrical ratings

VIPer35

10/44

DocID026980 Rev 4

TJ = -40 to 125 °C (unless otherwise specified)

Current

IDD0

Operating supply

current, not switching

VFB = GND

VBR = GND

VDD = 10 V

(1)

0.6

0.7

IDD1

Operating supply

current switching

VDRAIN = 120 V

VDD = 16 V

ZCD switching @100 kHz

Resistive load:100

Ω

VFB = 2.5 V

IDD_FAULT

Operating supply

current with

protection tripping

VDD = 10 V

400

IDDoff

Operating supply

current

VDD < VDDoff

270

Adjust VDD above VDDon start-up threshold before setting 10 V.

Table 6. Supply section (continued)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Table 7. Controller section

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Feedback pin

VFBolp

Overload shutdown

threshold

4.5

4.8

5.2

VFBlin

Linear dynamics

upper limit

3.1

3.3

3.5

VFBbm

Burst mode

threshold

Voltage falling

0.56

0.6

0.64

VFBbmhys

Burst mode

hysteresis

Voltage rising

100

IFB

Feedback sourced

current

VFB = 0.3 V

-150

-215

-280

µA

3.3 V < VFB < 4 V

-2.5

-3

-3.5

µA

RFB(DYN)

Dynamic resistance

VFB > 2.5 V12

Ω

HFB

ΔVFB / ΔID

0.5

V/A

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