LT3746

2

3746fa

For more information www.linear.com/3746

pin conFiguraTion

absoluTe MaxiMuM raTings

LED00 to LED31, ISP, ISN .........................................13V

ISP .................................................ISN – 1V to ISN + 1V

SCKI, SCKO, SDI, SDO, LDI, LDO, PWMCK, SYNC,

Operating Junction Temperature Range

(Notes 2, 3)............................................–40°C to 125°C

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

(Note 1)

19 20 21 22

TOP VIEW

57

GND

UHH PACKAGE

56-LEAD (5mm

× 9mm) PLASTIC QFN

23 24 25 26 27 28

56 55 54 53 52 51 50 49 48 47

39

40

41

42

43

44

45

46

8

7

6

5

4

3

2

1

EN/UVLO

LED15

LED14

LED13

LED12

LED11

LED10

LED09

LED08

LED07

LED06

LED05

LED04

LED03

LED02

LED01

LED00

GND

SYNC

LED16

LED17

LED18

LED19

LED20

LED21

LED22

LED23

LED24

LED25

LED26

LED27

LED28

LED29

LED30

LED31

GND

38

37

36

35

34

33

32

31

30

29

9

10

11

12

13

14

15

16

17

18

EXPOSED PAD (PIN 57) IS GND, MUST BE SOLDERED TO PCB

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3746EUHH#PBF

LT3746EUHH#TRPBF

3746

56-Lead (5mm

× 9mm) Plastic QFN

–40°C to 125°C

LT3746IUHH#PBF

LT3746IUHH#TRPBF

3746

56-Lead (5mm

× 9mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based finish parts.