LTC2908IDDB-A1-TRMPBF datasheet(5/16 Pages) LINER

Part #	LTC2908IDDB-A1-TRMPBF

Description	Precision Six Input Supply Monitor

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC2908

5

2908fc

TYPICAL PERFORMANCE CHARACTERISTICS

Speciﬁcations are at TA = 25°C unless otherwise noted.

1.8V Threshold Voltage

vs Temperature

1.5V Threshold Voltage

vs Temperature

ADJ Threshold Voltage

vs Temperature

IV1 vs Temperature

IV2 vs Temperature

IV3 vs Temperature

IV4 vs Temperature

Typical Transient Duration

vs Comparator Overdrive

Reset Time-Out Period (tRST)

vs Temperature

TEMPERATURE (°C)

–50

1.710

1.700

1.690

1.680

1.670

1.660

25

75

2908 G04

–25

0

50

100

TEMPERATURE (°C)

–50

50

1.425

2908 G05

0

–25

75

25

100

1.410

1.405

1.400

1.395

1.390

1.385

1.380

1.415

1.420

TEMPERATURE (°C)

–50

0.4980

0.5000

0.5020

25

75

2908 G06

0.4960

0.4940

0.4920

–25

0

50

0.5040

0.5060

0.5080

100

TEMPERATURE (°C)

–50

17

19

21

23

29

31

33

27

–25

025

50

2908 G07

75

100

25

A1

B1

C1

V1 = 5.0V (A1)/V1 = 3.3V (B1)/V1 = 2.5V (C1)

V2 = 3.3V (A1)/V2 = 2.5V (B1)

V3 = 2.5V (A1)/V3 = 1.8V (B1)

V4 = 1.8V (A1)/V1 = 1.5V (B1)

VADJ1 = VADJ2 = VADJ3 =

VADJ4 =VADJ5 = 0.55V

TEMPERATURE (°C)

–50

8

9

A1

B1

10

25

75

2908 G08

7

6

4

5

–25

0

50

11

12

14

13

100

V1 = 5.0V (A1)/V1 = 3.3V (B1)

V2 = 3.3V (A1)/V2 = 2.5V (B1)

V3 = 2.5V (A1)/V3 = 1.8V (B1)

V4 = 1.8V (A1)/V4 = 1.5V (B1)

VADJ1 = VADJ2 = 0.55V

TEMPERATURE (°C)

–50

1.7

1.8

1.9

25

75

2908 G09

1.6

1.5

1.4

–25

0

50

2.0

2.1

2.2

100

V1 = 5.0V (A1)/V1 = 3.3V (B1)

V2 = 3.3V (A1)/V2 = 2.5V (B1)

V3 = 2.5V (A1)/V3 = 1.8V (B1)

V4 = 1.8V (A1)/V4 = 1.5V (B1)

VADJ1 = VADJ2 = 0.55V

TEMPERATURE (°C)

–50

1.7

1.8

1.9

25

75

2908 G10

1.6

1.5

1.4

–25

0

50

2.0

2.1

2.2

100

V1 = 5.0V (A1)/V1 = 3.3V (B1)

V2 = 3.3V (A1)/V2 = 2.5V (B1)

V3 = 2.5V (A1)/V3 = 1.8V (B1)

V4 = 1.8V (A1)/V4 = 1.5V (B1)

VADJ1 = VADJ2 = 0.55V

COMPARATOR OVERDRIVE VOLTAGE (% OF VRTX)

0.1

400

500

600

700

1

10

100

2908 G11

300

200

100

0

RESET OCCURS

ABOVE CURVE

TA = 25°C

TEMPERATURE (°C)

–50

190

200

210

25

75

2908 G12

180

170

150

160

–25

0

50

220

230

250

240

100

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