LT1766 datasheet(5/20 Pages) LINER

Part #	LT1766

Description	True Color PWM Delivers Constant Color with 400:1 Dimming Range

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT3474/LT3474-1

5

3474fd

TYPICAL PERFORMANCE CHARACTERISTICS

Schottky Reverse Leakage

Schottky Forward Voltage Drop

Open-Circuit Output Voltage and

Input Current

Minimum Input Voltage,

One White Luxeon III Star

Minimum Input Voltage,

Two Series Connected White

Luxeon III Stars

Boost Pin Current

Quiescent Current

Reference Voltage

TEMPERATURE (°C)

–50

0

5

10

15

20

–25

0

25

50

3474 G15

75

100

125

VR = 5V

VIN (V)

0

10

20

30

40

50

60

0

1

2

3

4

5

6

8

7

10

20

30

40

3474 G16

TA = 25°C

OUTPUT VOLTAGE

INPUT CURRENT

LT3474

LT3474-1

LT3474

LED CURRENT (mA)

0

1

2

3

4

5

6

200

400

600

800

3474 G17

1000

TA = 25°C

TO START

LED VOLTAGE

TO RUN

LED CURRENT (mA)

0

8

9

10

800

3474 G18

7

6

5

200

400

600

1000

TO RUN

TA = 25°C

TO START

LED VOLTAGE

FORWARD VOLTAGE (mV)

0

300

400

500

800

3474 G19

200

100

0

200

400

600

1000

TA = 25°C

SWITCH CURRENT (mA)

0

10

20

30

40

60

250

500

750

1000

3473 G12

1250

1500

50

TA = 25°C

VIN (V)

0

0.5

1.0

1.5

2.0

3.0

6

12

18

24

3474 G13

30

36

2.5

TA = 25°C

TEMPERATURE (°C)

–50

–25

1.235

1.245

1.260

0

50

75

3474 G14

1.240

1.255

1.250

25

100

125

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