LT3599EUH datasheet(5/26 Pages) LINER

Part #	LT3599EUH

Description	4-Channel 120mA LED Driver with 짹1.5% Current Matching

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT3599

3599fd

Typical perForMance characTerisTics

SHDN/UVLO Pin Turn-On

Threshold (VSD_UVLO)

SHDN/UVLO Pin

(Hysteresis) Current

VIN Current (Shutdown)

VREF

Switching Frequency

Switching Frequency vs RT

LED Current vs CTRL Pin

Soft-Start Pin Current

JUNCTION TEMPERATURE (°C)

–50

1.40

1.35

0

50

–25

25

75 100

150

125

1.25

1.30

1.45

3599 G01

0

50

150

200

250

500

350

100

400

450

300

3599 G03

VIN = 30V

VIN = 3V

JUNCTION TEMPERATURE (°C)

–50

0

50

–25

25

75 100

150

125

JUNCTION TEMPERATURE (°C)

–50

1240

1230

0

50

–25

25

75 100

150

125

1210

1220

1250

3599 G04

VIN = 30V

VIN = 3V

CTRL PIN VOLTAGE (V)

0

60

80

120

1.0

40

20

0

0.2

0.4

0.6

0.8

1.2

100

3599 G07

ISET = 13.3k

JUNCTION TEMPERATURE (°C)

–50

0

50

–25

25

75 100

150

125

3599 G08

10

11

13

9

8

7

12

RT (k)

3599 G06

10000

1000

100

10

100

1000

JUNCTION TEMPERATURE (°C)

–50

0

50

–25

25

75 100

150

125

3599 G02

4

5

3

2

1

0

6

JUST BEFORE PART TURN-ON

AFTER PART TURN-OFF

JUNCTION TEMPERATURE (°C)

–50

2.0

2.5

3.0

25

75

3599 G05

1.5

1.0

–25

0

50

100

150

125

0.5

0

2.1MHz

0.2MHz

1MHz

TA = 25°C unless otherwise specified

TSET Pin Threshold

vs Junction Temperature

JUNCTION TEMPERATURE (°C)

0

500

600

700

800

50

100

125

25

75

150

900

550

650

750

850

3599 G09

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