LNK454DG-TL datasheet(11/20 Pages) POWERINT

Part #	LNK454DG-TL

Description	LED Driver IC with TRIAC Dimming, Single-Stage PFC and Constant Current Control for Non-Isolated Applications

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Manufacturer	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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11 / 20 page

Rev. A 11/01/10

11

LNK454/456-458/460

www.powerint.com

Parameter

Symbol

Conditions

SOURCE = 0 V; T

J = -40 to +125 °C

(Unless Otherwise Specified)

Min

Typ

Max

Units

Control Functions

Maximum Output

Frequency

f

MAX

T

J = 25 °C

Average

110

122

134

kHz

Peak-Peak Jitter

6

%

Minimum Output

Frequency

f

MIN

T

J = 25 °C

Average

25.8

28.7

31.6

kHz

Peak-Peak Jitter

6

%

Maximum Switch

ON-Time

t

ON(MAX)

T

J = 25 °C

5.74

µs

Minimum Switch

ON-Time

t

ON(MIN)

T

J = 25 °C

1.2

µs

Maximum Duty Cycle

DC

MAX

70

%

FEEDBACK Pin Voltage

V

FB

T

J = 25 °C

Non-dimming (full power) operation

280

290

300

mV

FEEDBACK Pin Voltage

Triggering Cycle

Skipping Mode

V

FB(SK)

Non-dimming (full power) operation

520

mV

FEEDBACK Pin Voltage

for IC Auto-Restart

V

FB(AR)

2

V

Feedback Pull-up

Current

I

FB

-1.3

-1.0

-0.7

µA

Absolute Maximum Ratings(1,4)

DRAIN Pin Peak Current(5): LNK454 ............... 400 mA (750 mA)

LNK456 ..............850 mA (1450 mA)

LNK457 ........... 1350 mA (2000 mA)

LNK458 ............1750 mA (2650 mA)

LNK460 ............2700 mA (5100 mA)

DRAIN Pin Voltage ………………………............. -0.3 V to 725 V

FEEDBACK Pin Voltage ……………………… ............ -0.3 to 9 V

BYPASS Pin Voltage ……………………… ................. -0.3 to 9 V

Lead Temperature(3) ................................................................260

°C

Storage Temperature …………………................... -65 to 150 °C

Operating Junction Temperature(2).........................-40 to 150 °C

Notes:

1. All voltages referenced to SOURCE, T

A = 25 °C.

2. Normally limited by internal circuitry.

3. 1/16 in. from case for 5 seconds.

4. The Absolute Maximum Ratings specified may be applied,

one at a time without causing permanent damage to the

product. Exposure to Absolute Maximum Ratings for

extended periods of time may affect product reliability.

5. The higher peak Drain current (in parentheses) is allowed

while the Drain voltage is simultaneously less than 400 V.

Thermal Resistance

Thermal Resistance: D (SO-8C) Package:

(

q

JA) .................................. 100 °C/W

(1)

, 80

°C/W(2)

(

q

JC) ........................................................ 30 °C/W

(3)

K (eSOP) Package:

(

q

JA) .................................... 69 °C/W

(1)

, 49

°C/W(2)

(

q

JC) ...........................................................2 °C/W

(4)

V (eDIP) Package:

(

q

JA) .................................... 76 °C/W

(1)

, 64

°C/W(2)

(

q

JC) ...........................................................2 °C/W

(4)

Notes:

1. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610g/m2) copper clad,

with no external heat sink attached.

2. Soldered to 1 sq. in. (645 mm2), 2 oz. (610g/m2) copper clad,

with no external heat sink attached.

3. Measured on the SOURCE pin close to plastic interface.

4. Measured at the surface of exposed pad.

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