HV9931LG-G 데이터 시트보기 (PDF) - Supertex Inc

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HV9931LG-G

Unity Power Factor LED Lamp Driver

Supertex Inc 

HV9931

Symbol Parameter

Min Typ Max Units Conditions

PWM Dimming

VPWMD(lo)

VPWMD(hi)

RPWMD

PWMD input low voltage*

PWMD input high voltage*

PWMD pull-down resistance

GATE

-

-

1.0

V VIN = 8 – 450V

2.4

-

-

V VIN = 8 – 450V

50

100 150 kΩ VPWMD = 5V

VGATE(hi) GATE high output voltage*

VGATE(lo) GATE low output voltage*

TRISE

GATE output rise time

TFALL

GATE output fall time

TDELAY

Delay from CS trip to GATE

TBLANK

Blanking delay

Oscillator

VDD-0.3 -

VDD

0

- 0.3

-

30 50

-

30 50

-

150 300

150 215 280

V

IGATE = 10mA

V IGATE = -10mA

ns CGATE = 500pF

ns CGATE = 500pF

ns VIN = 12V, VCSI, VCS2 = -100mV

ns VCSI, VCS2 = -100mV

FOSC

Initial accuracy

Comparators

80

100 120 kHz RT = 226KΩ

VOFFSET1

VOFFSET2

Comparator Input offset voltage*

-15

- 15 mV ---

Functional Block Diagram

VIN

CS1

CS2

PWMD

Regulator

7.5V

Leading

S

Edge

RQ

Blanking

Osc

VDD

RT

GATE

AGND

HV9931

3

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