LTC7811

3

Rev. 0

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ABSOLUTE MAXIMUM RATINGS

BOOST1, BOOST2...................................... –0.3V to 46V

Switch Voltage (SW1, SW2).......................... –5V to 40V

RUN1, RUN2, RUN3 Voltages..................... –0.3V to 40V

(BOOST2–SW2) ...................................... –0.3V to 6V

TRACK/SS1, TRACK/SS2 Voltages .............. –0.3V to 6V

ITH1, ITH2, ITH3 Voltages............................ –0.3V to 2V

VPRG3, MODE, BATTGOOD Voltages .......... –0.3V to 6V

PLLIN/SPREAD, FREQ, Voltages.................. –0.3V to 6V

BG1, BG2, BG3, TG1, TG2, ................................. (Note 9)

Operating Junction Temperature Range (Notes 2,8)

LTC7811I............................................ –40°C to 125°C

LTC7811J ........................................... –40°C to 150°C

Storage Temperature Range .................. –65°C to 150°C

(Note 1)

39

40

38 37 36 35 34 33 32 31

11

20

12 13 14 15

TOP VIEW

41

GND

UJ PACKAGE

40-LEAD (6mm × 6mm) PLASTIC QFN

EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB

16 17 18 19

22

23

24

25

26

27

28

29

9

8

7

6

5

4

3

2

MODE

SS3

ITH3

IMON3

RUN1

RUN2

RUN3

BOOST1

BG1

NC

NC

BATTSNS

BG3

BG2

21

30

10

1

PIN CONFIGURATION

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC7811IUJ#PBF

LTC7811IUJ#TRPBF

LTC7811

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

AUTOMOTIVE PRODUCTS**

LTC7811IUJ#WPBF

LTC7811IUJ#WTRPBF

LTC7811

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 125°C

LTC7811JUJ#WPBF

LTC7811JUJ#WTRPBF

LTC7811

40-Lead (6mm × 6mm) Plastic QFN

–40°C to 150°C

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

Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.

**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These

models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your

local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for

these models.