LTC1727 datasheet(2/16 Pages) LINER

Part #	LTC1727

Description	Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages

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Manufacturer	LINER [Linear Technology]

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LTC1727/LTC1728

A

G

A

U

A

R

BSOLUTEXI

TI

S

VCC3, VCC5/VCC25/VCC18, VCCA ................... – 0.3V to 7V

RST ........................................................... – 0.3V to 7V

COMPA, COMP3, COMP25/COMP5

(MS8 and SO-8 Only) ............................ – 0.3V to 7V

Operating Temperature Range

(Note 3) ............................................. – 40

°C to 85°C

Storage Temperature Range ................ – 65

°C to 150°C

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

°C

PACKAGE/ORDER I FOR ATIO

ORDER

PART NUMBER

LTC1727EMS8-2.5

LTC1727EMS8-5

MS8

PART MARKING

Consult factory for Military grade parts.

TJMAX = 125°C, θJA = 250°C/W

TJMAX = 125°C, θJA = 200°C/W

(Notes 1, 2)

1

2

3

4

VCC3

VCC5/VCC25

VCCA

GND

8

7

6

5

COMP3

COMP25/COMP5

RST

COMPA

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

RST 1

GND 2

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC SOT-23

VCCA 3

5 VCC3

4

VCC5/

VCC25/

VCC18

1

2

3

4

8

7

6

5

TOP VIEW

COMP3

RST

COMPA

VCC3

VCCA

GND

S8 PACKAGE

8-LEAD PLASTIC SO

COMP25/

COMP5

VCC5/

VCC25

TJMAX = 125°C, θJA = 150°C/W

ORDER

PART NUMBER

LTC1727ES8-2.5

LTC1727IS8-2.5

LTC1727ES8-5

LTC1727IS8-5

LTHY

LTHX

S8

PART MARKING

172725

727I25

17275

1727I5

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VRT3

Reset Threshold VCC3

VCC3 Input Threshold

q

3.036

3.086

3.135

V

VRT5

Reset Threshold VCC5

VCC5 Input Threshold (5V Version)

q

4.600

4.675

4.750

V

VRT25

Reset Threshold VCC25

VCC25 Input Threshold (2.5V Version)

q

2.300

2.338

2.375

V

VRTA

Reset Threshold VCCA

VCCA Input Threshold

q

0.985

1.000

1.015

V

VCCOP

VCC3, VCC5/VCC25 Operating Voltage

RST, COMP3, COMP5, COMP25 in Correct Logic State

q

17

V

VCCOPA

VCC3, VCC5/VCC25 Operating Voltage

Minimum Supply Voltage to Guarantee COMPA

q

2

2.3

V

in Correct Logic State

IVCC3

VCC3 Supply Current

VCC5/VCC25 > VCC3

q

12

µA

VCC5/VCC25 < VCC3, VCC3 = 3.3V (Note 4)

q

10

20

µA

IVCC25

VCC25 Supply Current

VCC25 < VCC3, VCC25 = 2.5V (Note 4)

q

12

µA

IVCC5

VCC5 Supply Current

VCC5 = 5V, VCC3 < VCC5

q

10

20

µA

IVCCA

VCCA Input Current

VCCA = 1V

q

–15

0

15

nA

tRST

Reset Pulse Width

RST Low with 10k Pull-Up to VCC3 (Note 5)

q

140

200

280

ms

All except LTC1728-1.8. The q denotes specifications which apply over the

full operating temperature range, otherwise specifications are at TA = 25°C. VCC3 = 3.3V, VCC5 = 5V, VCC25 = 2.5V, VCCA = VCC3 unless

otherwise noted.

ORDER

PART NUMBER

LTC1728ES5-1.8

LTC1728ES5-2.5

LTC1728ES5-5

S5

PART MARKING

LTPH

LTIA

LTHZ

ELECTRICAL CHARACTERISTICS

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