LTC2972 datasheet(4/112 Pages) LINER

4 / 112 page

LTC2972

2972fa

For more information www.linear.com/LTC2972

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltages:

VPWR...................................................... –0.3V to 15V

VDD33.................................................... –0.3V to 3.6V

VDD25.................................................. –0.3V to 2.75V

Digital Input/Output Voltages:

ALERTB, SDA, SCL, CONTROL0,

CONTROL1, PG[1:0], VDDIO ................... –0.3V to 3.6V

PWRGD, SHARE_CLK, WDI/RESETB,

WP, FAULTB0, FAULTB1........................ –0.3V to 3.6V

ASEL0, ASEL1....................................... –0.3V to 3.6V

Analog Voltages:

REFP................................................... –0.3V to 1.35V

REFM.................................................... –0.3V to 0.3V

VIN_SNS, VIN_SNS_CAP ............................ –0.3V to 15V

IIN_SNSP, IIN_SNSM to VIN_SNS ............... –0.3V to 0.3V

VSENSEP[1:0].............................................. –0.3V to 6V

VSENSEM[1:0]............................................. –0.3V to 6V

ISENSEP[1:0]............................................... –0.3V to 6V

ISENSEM[1:0].............................................. –0.3V to 6V

VOUT_EN[1:0], AUXFAULTB ...................... –0.3V to 15V

VDAC[1:0]................................................... –0.3V to 6V

TSENSE[1:0]............................................. –0.3V to 3.6V

IIN_SNSP, IIN_SNSM.................................. –0.3V to 15V

Operating Junction Temperature Range:

LTC2972C ................................................ 0°C to 70°C

LTC2972I ........................................... –40°C to 105°C

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

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

*See OPERATION section for detailed EEPROM derating

information for junction temperatures in excess of 105°C.

(Notes 1, 2)

ORDER INFORMATION

TUBE

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

JUNCTION TEMPERATURE RANGE

LTC2972CUJF#PBF

LTC2972CUJF#TRPBF

LTC2972UJF

44-Lead (6mm × 7mm) Plastic QFN

0°C to 70°C

LTC2972IUJF#PBF

LTC2972IUJF#TRPBF

LTC2972UJF

44-Lead (6mm × 7mm) Plastic QFN

–40°C to 105°C

Consult ADI 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/. Some packages are available in 500 unit reels through

designated sales channels with #TRMPBF suffix.

13 14

TOP VIEW

GND

UJF PACKAGE

44-LEAD (6mm × 7mm) PLASTIC QFN

15 16 17 18 19 20 21 22

44 43 42 41 40 39 38 37 36 35

VIN_SNS_CAP

GND

DNC

VIN_SNS

VPWR

VDD33

VDD25

TSENSE0

TSENSE1

PWRGD

ISENSEP1

VSENSEM0

VSENSEP0

ISENSEM0

ISENSEP0

REFM

REFP

ASEL1

ASEL0

VDDIO

CONTROL1

CONTROL0

TJMAX = 125°C, θJCtop = 13.57°C/W, θJCbottom = 2.82°C/W

EXPOSED PAD (PIN 45) IS GND, MUST BE SOLDERED TO PCB

http://www.linear.com/product/LTC2972#orderinfo

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