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LT3476

3476fa

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

(Note 1)

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

2.8

Full-Scale LED Current Monitor Threshold

Over CAP1-4/LED1-4 Operating Range

●

102

100

105

107

108

One-Tenth Scale LED Current Monitor Threshold

VADJ1-4 = 100mV

CAP1-4/LED1-4 Operating Range

2.2

REF Output Voltage

10μA ≥ IREF ≥ –200μA

●

1.032

1.050

1.063

REF Line Regulation

2.8V ≤ VIN ≤ 16V

0.003

%/V

Quiescent Current in Shutdown

SHDN = 0V

0.1

μA

ELECTRICAL CHARACTERISTICS

ABSOLUTE

AXI U

RATI GS

13 14 15 16

TOP VIEW

GND

UHF PACKAGE

38-LEAD (5mm × 7mm) PLASTIC QFN

17 18 19

38 37 36 35 34 33 32

VC1

LED1

CAP1

CAP2

LED2

REF

LED3

CAP3

CAP4

LED4

VC4

SW1

SW2

SW3

SW4

TJMAX = 125°C, θJA = 34°C/W

EXPOSED PAD (PIN 39) IS GND

(MUST BE SOLDERED TO PCB)

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3476EUHF#PBF

LT3476EUHF#TRPBF

3476

38-Lead (5mm × 7mm) Plastic QFN

–40°C to 85°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3476EUHF

LT3476EUHF#TR

3476

38-Lead (5mm × 7mm) Plastic QFN

–40°C to 85°C

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/

ORDER I FOR ATIO

PI CO FIGURATIO

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