HV9911NG-G 데이터 시트보기 (PDF) - Supertex Inc

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HV9911NG-G

Switch-mode LED Driver IC with High Current Accuracy

Supertex Inc 

HV9911

Electrical Characteristics

(Over recommended operating conditions, VIN = 24V, TA = 25°C, unless otherwise specified)

Symbol Parameter

Min Typ Max Units Conditions

Input

VINDC

Input DC supply voltage range*

IINSD

Shut-Down mode supply current*

Internal Regulator

9

-

250

V DC input voltage

-

1.0 1.5 mA PWM_D connected to GND, VIN = 24V

V

Internally regulated voltage*

DD

7.25 7.75 8.25

V

VIN = 9–250V, IDD(ext) = 0,

PWMD connected to GND

UVLO VDD undervoltage lockout threshold

∆UVLO VDD undervoltage lockout hysteresis

VDD(ext)

Steady State External Voltage

which can applied at the V pin1

DD

Reference

6.65

-

-

6.90

500

-

7.20

-

12

V VDD rising

mV ---

V ---

V

REF pin voltage*

REF

1.225 1.25 1.275

V

REF bypassed with a 0.1µF capacitor to GND;

IREF= 0; VDD = 7.75V; PWMD = GND

VREFLINE Line regulation of reference voltage

0

-

20

mV

REF bypassed with a 0.1µF capacitor to GND;

IREF = 0; VDD = 7.25 – 12V; PWMD = GND

VREFLOAD

Load regulation of reference

voltage

0

-

10

mV

REF bypassed with a 0.1µF capacitor to GND;

IREF = 0 - 500µA; PWMD = GND

PWM Dimming

VPWMD(lo)

VPWMD(hi)

RPWMD

GATE

PWMD input low voltage*

PWMD input high voltage*

PWMD pull-down resistance

-

-

0.80

V VDD = 7.25V – 12V

2.0

-

-

V VDD = 7.25V – 12V

50

100 150

kΩ VPWMD = 5.0V

ISOURCE

ISINK

TRISE

TFALL

GATE short circuit current

GATE sinking current

GATE output rise time

GATE output fall time

0.2

-

-

A

VGATE = 0V; VDD = 7.75V

0.4

-

-

A VGATE = 7.75V ; VDD = 7.75V

-

50

85

ns CGATE = 1nF; VDD = 7.75V

-

25

45

ns CGATE = 1nF; VDD = 7.75V

Over Voltage Protection

VOVP

IC Shut down voltage*

Current Sense

1.215 1.25 1.285 V VDD = 7.25 – 12V ; OVP rising

TBLANK

Leading Edge Blanking

100

-

375 ns ---

TDELAY1

Delay to Output of OP comparator

-

-

180

ns

OP = VDD ; CLIM = REF;

CSENSE = 0 to 600mV step

TDELAY2

Delay to Output of CLIMIT

comparator

-

-

180

ns

OP = VDD ; CLIM = 300mV ;

CSENSE = 0 to 400mV step

VOFFSET

Comparator Offset voltage

-10

-

10 mV ---

NR011206

3

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