VIPER16 datasheet(9/30 Pages) STMICROELECTRONICS

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VIPER16

Electrical data

Current

IDD0

Operating supply current, not switching

FOSC = 0 kHz, VCOMP = GND

0.6

IDD1

Operating supply current, switching

VDRAIN = 120 V,

FSW = 60 kHz

1.3

VDRAIN = 120 V,

FSW = 115 kHz

1.5

IDDoff

Operating supply current with VDD < VDDoff

VDD < VDDoff

0.35

IDDol

Open loop failure current threshold

VDD = VDDclamp

VCOMP = 3.3 V,

Table 7. Supply section (continued)

Symbol

Parameter

Test condition

Min

Typ Max

Unit

Table 8. Controller section

Symbol

Parameter

Test condition

Min

Typ Max

Unit

Error amplifier

VREF_FB

FB reference voltage

3.2

3.3

3.4

IFB_PULL UP Current pull up

-1

μA

Trans conductance

mA/V

Current setting (LIM) pin

VLIM_LOW

Low level clamp voltage

ILIM = -100 μA0.5

Compensation (COMP) pin

VCOMPH

Upper saturation limit

TJ = 25 °C

VCOMPL

Burst mode threshold

TJ = 25 °C

1.1

1.2

VCOMPL_HYS Burst mode hysteresis

TJ = 25 °C

HCOMP

ΔVCOMP / ΔIDRAIN

V/A

RCOMP(DYN) Dynamic resistance

VFB = GND

ICOMP

Source / sink current

VFB > 100 mV

150

μA

Max source current

VCOMP = GND, VFB = GND

220

μA

Current limitation

IDlim

Drain current limitation

ILIM = -10 μA, VCOMP = 3.3 V,

TJ = 25 °C

0.38

0.4

0.42

tSS

Soft-start time

8.5

TON_MIN

Minimum turn ON time

220

450

IDlim_bm

Burst mode current limitation

VCOMP = VCOMPL

Overload

tOVL

Overload time

tRESTART

Restart time after fault

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