DO1606T-472 datasheet(4/20 Pages) LINER

Part #	DO1606T-472

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

4

3474fd

TYPICAL PERFORMANCE CHARACTERISTICS

Current Limit vs Duty Cycle

Switch Current Limit vs

Temperature

Current Limit vs Output Voltage

Oscillator Frequency vs

Temperature

Oscillator Frequency vs RT

Oscillator Frequency Foldback

LED Current vs VADJ

LED Current vs Temperature

Switch Voltage Drop

VADJ (V)

0

600

800

1000

1

3474 GO3

400

200

0

0.25

0.5

0.75

1.25

TA = 25°C

TEMPERATURE (°C)

–50

800

1000

1200

25

75

3474 G04

600

400

–25

0

50

100

125

200

0

VADJ = VREF

VADJ = VREF/5

SWITCH CURRENT (mA)

0

700

600

500

400

300

200

100

0

3474 G05

500

1000

1500

TA = 25°C

DUTY CYCLE (%)

0

1.5

2

2.5

80

3474 G06

1

0.5

0

20

40

60

100

TYPICAL

MINIMUM (125°C)

MINIMUM (85°C)

TEMPERATURE (°C)

–50

–25

0

1

2.5

0

50

75

3474 G07

0.5

2

1.5

25

100

125

VOUT (V)

0

0.5

1

1.5

2

2.5

2

46

8

3474 G08

10

12

TA = 25°C

RT (kΩ)

10

100

1000

100

3474 G09

TA = 25°C

TEMPERATURE (°C)

–50

400

450

500

550

600

–25

0

25

50

3474 G10

75

100

125

RT = 80.6k

VOUT (V)

0

100

200

300

400

500

600

0.5

1

1.5

2

3474 G11

2.5

TA = 25°C

RT = 80.6k

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DO1606T-472 Datasheet(PDF) 4 Page - Linear Technology

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