LT3476EUHF(RevA) 查看數據表（PDF） - Linear Technology

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LT3476EUHF
(Rev.:RevA)

High Current Quad Output LED Driver

Linear Technology 

LT3476

ABSOLUTE AXI U RATI GS

(Note 1)

VIN ............................................................................16V

PWM1-4, SHDN ........................................................16V

SW1-4, LED1-4, CAP1-4...........................................36V

REF, RT, VADJ1-4, VC1-4 ................................................2V

Operating Temperature Range (Note 2).... –40°C to 85°C

Maximum Junction Temperature........................... 125°C

Storage Temperature Range................... –65°C to 125°C

Lead Temperature ................................................. 300°C

PI CO FIGURATIO

TOP VIEW

VC1 1

LED1 2

CAP1 3

CAP2 4

LED2 5

RT 6

REF 7

LED3 8

CAP3 9

CAP4 10

LED4 11

VC4 12

38 37 36 35 34 33 32

39

GND

13 14 15 16 17 18 19

31 NC

30 NC

29 SW1

28 SW1

27 SW2

26 SW2

25 SW3

24 SW3

23 SW4

22 SW4

21 NC

20 NC

UHF PACKAGE

38-LEAD (5mm × 7mm) PLASTIC QFN

TJMAX = 125°C, θJA = 34°C/W

EXPOSED PAD (PIN 39) IS GND

(MUST BE SOLDERED TO PCB)

UW U

ORDER I FOR ATIO

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

LT3476EUHF#PBF

LT3476EUHF#TRPBF

3476

38-Lead (5mm × 7mm) Plastic QFN

LEAD BASED FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

LT3476EUHF

LT3476EUHF#TR

3476

38-Lead (5mm × 7mm) Plastic QFN

Consult LTC Marketing for parts specified with wider operating temperature ranges.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

TEMPERATURE RANGE

–40°C to 85°C

TEMPERATURE RANGE

–40°C to 85°C

ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating

temperature range, (Note 3) otherwise specifications are at TA = 25°C. SW1-4 = 5V, VIN = 3.3V, SHDN = 3.3V, RT = 21k to GND,

PWM1-4 = 3.3V, VADJ1-4 = REF, CAP1-4 = 5V, unless otherwise noted.

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

VIN Operating Range

Full-Scale LED Current Monitor Threshold

Over CAP1-4/LED1-4 Operating Range

2.8

16

V

102

105

107

mV

● 100

108

mV

One-Tenth Scale LED Current Monitor Threshold

CAP1-4/LED1-4 Operating Range

VADJ1-4 = 100mV

8

12

16

mV

2.2

36

V

REF Output Voltage

REF Line Regulation

Quiescent Current in Shutdown

10μA ≥ IREF ≥ –200μA

2.8V ≤ VIN ≤ 16V

SHDN = 0V

● 1.032 1.050 1.063

V

0.003

%/V

0.1

10

μA

3476fa

2

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