LTC2978 datasheet(2/32 Pages) LINER

Part #	LTC2978

Description	Wide Range I2C Power Monitor Rail-to-Rail Input Range: 0V to 80V

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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2 / 32 page

LTC2945

2

2945f

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VDD Voltage.............................................. –0.3V to 100V

SENSE+ Voltage ...........................................–1V to 100V

SENSE– Voltage .....–1V or SENSE+ – 1V to SENSE+ + 1V

INTVCC Voltage (Note 3) ........................... –0.3V to 5.9V

ADR1, ADR0, ADIN, ALERT, SDAO, SDAO

Voltage......................................................... –0.3V to 7V

INTVCC Clamp Current ...........................................35mA

(Notes 1, 2)

LTC2945

12 11 10

4

5

6

TOP VIEW

13

UD PACKAGE

12-LEAD (3mm

3mm) PLASTIC QFN

7

8

9

3

2

1

INTVCC

ADR1

ADR0

ALERT

SDAO

SDAI

TJMAX = 125°C, θJA = 58.7°C/W

EXPOSED PAD (Pin 13) PCB GND CONNECTION OPTIONAL

1

2

3

4

5

6

VDD

INTVCC

ADR1

ADR0

ADIN

GND

12

11

10

9

8

7

SENSE+

SENSE–

ALERT

SDAO

SDAI

SCL

TOP VIEW

MS PACKAGE

12-LEAD PLASTIC MSOP

TJMAX = 125°C, θJA = 135°C/W

LTC2945-1

12 11 10

4

5

6

TOP VIEW

13

UD PACKAGE

12-LEAD (3mm

3mm) PLASTIC QFN

7

8

9

3

2

1

INTVCC

ADR1

ADR0

ALERT

SDAO

SDAI

TJMAX = 125°C, θJA = 58.7°C/W

EXPOSED PAD (Pin 13) PCB GND CONNECTION OPTIONAL

1

2

3

4

5

6

VDD

INTVCC

ADR1

ADR0

ADIN

GND

12

11

10

9

8

7

SENSE+

SENSE–

ALERT

SDAO

SDAI

SCL

TOP VIEW

MS PACKAGE

12-LEAD PLASTIC MSOP

TJMAX = 125°C, θJA = 135°C/W

SCL, SDAI Voltages (Note 4)..................... –0.3V to 5.9V

SCL, SDAI Clamp Current ........................................5mA

Operating Temperature Range

LTC2945C................................................ 0°C to 70°C

LTC2945I ............................................. –40°C to 85°C

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

Lead Temperature (Soldering, 10sec)

MS Package Only.............................................. 300°C

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LTC2978 Datasheet(PDF) 2 Page - Linear Technology

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