LT3791_15 datasheet(2/28 Pages) LINER

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LT3791

3791fb

For more information www.linear.com/LT3791

pin conFiguraTion

absoluTe MaxiMuM raTings

Supply Voltages

Input Supply (VIN).....................................................60V

SW1, SW2......................................................–1V to 60V

OPENLED, SHORTLED ...............................................15V

EN/UVLO, IVINP, IVINN, ISP, ISN ..............................60V

INTVCC, (BST1-SW1), (BST2-SW2).............................6V

TEST2, SYNC, RT, CTRL, OVLO, PWM .......................6V

IVINMON, ISMON, FB, SS, VC, VREF............................6V

IVINP-IVINN, ISP-ISN, SNSP-SNSN.......................±0.5V

SNSP, SNSN...........................................................±0.3V

Operating Junction Temperature (Notes 2, 3)

LT3791E/LT3791I............................... –40°C to 125°C

LT3791H ............................................ –40°C to 150°C

LT3791MP ......................................... –55°C to 150°C

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

Lead Temperature (Soldering, 10 sec)...................300°C

(Note 1)

TOP VIEW

FE PACKAGE

38-LEAD PLASTIC TSSOP

CTRL

PWM

OPENLED

SHORTLED

VREF

ISMON

IVINMON

EN/UVLO

IVINP

IVINN

VIN

INTVCC

TG1

BST1

SW1

PGND

BG1

BG2

OVLO

SYNC

CLKOUT

TEST2

PWMOUT

SGND

TEST1

SNSN

SNSP

ISN

ISP

TG2

BST2

SW2

PGND

SGND

TJMAX = 150°C, θJA = 28°C/W

EXPOSED PAD (PIN 39) IS SGND, MUST BE SOLDERED TO PCB

elecTrical characTerisTics The

denotes the specifications which apply over the full operating

junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, VEN/UVLO = 12V unless otherwise noted.

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3791EFE#PBF

LT3791EFE#TRPBF

LT3791FE

38-Lead Plastic TSSOP

–40°C to 125°C

LT3791IFE#PBF

LT3791IFE#TRPBF

LT3791FE

38-Lead Plastic TSSOP

–40°C to 125°C

LT3791HFE#PBF

LT3791HFE#TRPBF

LT3791FE

38-Lead Plastic TSSOP

–40°C to 150°C

LT3791MPFE#PBF

LT3791MPFE#TRPBF

LT3791FE

38-Lead Plastic TSSOP

–55°C to 150°C

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

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/

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input

VIN Operating Voltage

4.7

VIN Shutdown IQ

VEN/UVLO = 0V

0.1

µA

VIN Operating IQ (Not Switching)

FB = 1.3V, RT = 59.0k

3.0

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