SI9119DY datasheet(2/8 Pages) VISHAY

No de pièce	SI9119DY

Description	Programmable Duty Cycle Controller

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Fabricant	VISHAY [Vishay Siliconix]

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Si9118/Si9119

Vishay Siliconix

New Product

www.Vishay Siliconix.com

S FaxBack 408-970-5600

2

Document Number: 70815

S-60752—Rev. B, 05 Apr-99

ABSOLUTE MAXIMUM RATINGS

Voltages Referenced to –VIN

VCC

18 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+VIN (Note: VCC < +VIN + 0.3 V)

200 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Input (SYNC)

–0.3 V to VCC + 0.3 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Linear Inputs

(FB, ICS, ILIMIT, SS/EN)

–0.3 V to VCC + 0.3 V

. . . . . . . . . . . . . . . . . . . . . . . . . .

HV Pre-Regulator Input Current (continuous)

5 mA

. . . . . . . . . . . . . . . . . . . . .

Storage Temperature

–65 to 150

_C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature

–40 to 85

_C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DMAX

3.2 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Junction Temperature (TJ)

150

_C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Dissipation (Package)a

16-Pin SOIC (Y Suffix)b

900 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thermal Impedance (

QJA)

16-Pin SOIC

140

_C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Notes

a.

Device mounted with all leads soldered or welded to PC board.

b.

Derate 7.2 mW/

_C above 25_C.

*

Exposure to Absolute Maximum rating conditions for extended periods may affect device reliability. Stresses above Absolute Maximum rating may cause permanent

.

damage. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any

one time.

RECOMMENDED OPERATING RANGE

Voltages Referenced to –VIN

VCC

10 V to 16.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+VIN

10 V to 200 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

fOSC

40 kHz to 1 MHz

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ROSC

56 k

W to 1 MW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

COSC

47 pF to 200 pF

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Linear Inputs

0 to VCC – 4 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Inputs

0 to VCC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SPECIFICATIONS

Test Conditions

Unless Specified

O

ill t

Di

bl d

Limits

D Suffix –40 to 85

_C

Parameter

Symbol

Oscillator Disabled

–VIN = 0 V, VCC = 10 V

Tempa

Min

Typb

Max

Unit

Reference

Ot

t V lt

V

OSC Disabled, TA = 25_C

Room

3.94

4.0

4.06

V

Output Voltage

VREF

OSC Disabled, Over Voltage and Tem-

perature Rangesc

Full

3.88

4.0

4.12

V

Short Circuit Current

ISREF

VREF = –VIN

–30

–5

mA

Load Regulation

DVR/DIR

IREF = 0 to –1 mA

10

40

mV

Oscillator

Initial Accuracyd

fOSC

ROSC = 374 kW, COSC = 200 pF

90

100

110

kHz

Initial Accuracyd

fOSCc

ROSC = 70 kW, COSC = 200 pF

450

500

550

kHz

Voltage Stabilityc

Df/f

ROSC = 70 kW, COSC = 200 pF

Df/f = [f(16.5 V) – f(9.5 V)] / f(9.5 V)

1

2

%

Temperature Coefficientc

OSC TC

–40

v TA v 85_C, fOSC = 100 kHz

200

500

ppm/

_C

Sync High Pulse Width (Si9119)

200

Sync Low Pulse Width (Si9119)

200

ns

Sync Rise/Fall Time (Si9119)

200

Sync Logic Low (Si9119)

VIL

0.8

V

Sync Logic High (Si9119)

VIH

4

V

Sync Rangec (Si9119)

fEXT

1.05 x fOSC

kHz

PWM/PSM

PWM/PSM Logic High

VIH

4

V

PWM/PSM Logic Low

VIL

0.8

V

DMAX

Accuracy

fOSC = 100 kHz with 1% Resistor

"10

%

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