VIPER113LSTR datasheet(10/37 Pages) STMICROELECTRONICS

10 / 37 page

Electrical characteristics

VIPer11

10/37

DS11873 Rev 5

HCOMP

ΔVCOMP / ΔIDRAIN

VIPer113*

5.9

10.5

V/A

VIPer114*

4.3

VIPer115*

3.8

VCOMPH

Current limitation

threshold

VCOMPL

PFM threshold

0.8

OLP and timing

IDLIM

Drain current limitation

TJ = 25 °C

VIPER113*

350

370

389

TJ = 25 °C

VIPER114*

456

480

504

TJ = 25 °C

VIPER115*

560

590

620

I2f

Power coefficient

IDLIM_TYP2 x FOSC_TYPP 0.9 ·I2fI2f

1.1 ·I2fA2·kHz

IDLIM_PFM

Drain current limitation

at light load

TJ = 25 °C

VCOMP = VCOMPL(1)

VIPER113*

100

135

TJ = 25 °C

VCOMP = VCOMPL(1)

VIPER114*

115

140

TJ = 25 °C

VCOMP = VCOMPL(1)

VIPER115*

105

130

155

VDIS_th

Disable threshold

voltage

VCC = 9 V

VCOMP = 1 V

VFB = VFB_REF

1.15

1.2

1.25

tDIS

Debounce time before

DIS protection tripping

0.65

1.35

tDIS_RESTART

Restart time after DIS

protection tripping

325

500

675

tOVL

Overload delay time

tOVL_MAX

Max. overload delay

time

VIPER11*X

FOSC = FOSC MIN

100

110

VIPER11*L

FOSC = FOSC MIN

180

200

220

VIPER11*H

FOSC = FOSC MIN

360

400

440

tSS

Soft-start time

Table 7. Controller section (continued)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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