HV9911 datasheet(4/14 Pages) SUTEX

Part #	HV9911

Description	Switch-Mode LED Driver IC with High Current Accuracy

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Manufacturer	SUTEX [Supertex, Inc]

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4

HV9911

Symbol

Parameter

Min

Typ

Max

Units

Conditions

Input

V

INDC

Input DC supply voltage range*

(1)

-

250

V

DC input voltage

I

INSD

Shut-down mode supply current*

-

1.0

1.5

mA

PWMD connected to GND, V

IN = 24V

Internal Regulator

V

DD

Internally regulated voltage*

7.25

7.75

8.25

V

IN = 9–250V, IDD(ext) = 0,

PWMD connected to GND

UVLO

V

DD undervoltage lockout

threshold

6.65

6.90

7.20

V

DD

rising

∆UVLO

V

DD undervoltage lockout

hysteresis

-

500

-

mV

---

V

DD(ext)

Steady state external voltage that

can be applied at the V

DD pin

2

-

12

V

---

Reference

V

REF

REF pin voltage

(0°C < T

A < 25°C)

1.225

1.25

1.275

V

REF bypassed with a 0.1µF capacitor

to GND; I

REF= 0; VDD = 7.75V;

PWMD = GND

REF pin voltage

(-40°C < T

A < 85°C)

1.2125

1.25

1.275

V

REFLINE

Line regulation of reference

voltage

0

-

20

mV

REF bypassed with a 0.1µF capacitor

to GND; I

REF = 0; VDD = 7.25 – 12V;

PWMD = GND

V

REFLOAD

Load regulation of reference

voltage

0-

10

mV

REF bypassed with a 0.1µF

capacitor to GND; I

REF = 0-500µ;

PWMD = GND

PWM Dimming

V

PWMD(lo)

PWMD input low voltage*

-

0.80

V

DD = 7.25V – 12V

V

PWMD(hi)

PWMD input high voltage*

2.0

-

V

DD = 7.25V – 12V

R

PWMD

PWMD pull-down resistance

50

100

150

kΩ

V

PWMD = 5.0V

GATE

I

SOURCE

GATE short circuit current

0.2

-

AV

GATE = 0V; VDD = 7.75V

I

SINK

GATE sinking current

0.4

-

A

V

GATE = 7.75V ; VDD = 7.75V

T

RISE

GATE output rise time

-

50

85

ns

C

GATE = 1nF; VDD = 7.75V

T

FALL

GATE output fall time

-

25

45

ns

C

GATE = 1nF; VDD = 7.75V

Over Voltage Protection

V

OVP

IC shut down voltage*

1.215

1.25

1.285

V

DD = 7.25 – 12V ; OVP rising

Current Sense

T

BLANK

Leading edge blanking

100

-

375

ns

---

T

DELAY1

Delay to output of COMP comparator

-

180

ns

COMP = V

DD ; CLIM = REF;

V

CS = 0 to 600mV step

Electrical Characteristics

(Over recommended operating conditions. V

IN = 24V, TA = 25°C, unless otherwise speciﬁed)

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