LM89 datasheet(4/20 Pages) NSC

部品番号	LM89

部品情報	짹0.75째C Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface

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Absolute Maximum Ratings (Note 1)

Supply Voltage

−0.3 V to 6.0 V

Voltage at SMBData, SMBCLK,

ALERT, T_CRIT_A

−0.5V to 6.0V

Voltage at Other Pins

−0.3 V to

(V

DD + 0.3 V)

D− Input Current

±1mA

Input Current at All Other Pins (Note

2)

±5mA

Package Input Current

(Note 2)

30 mA

SMBData, ALERT, T_CRIT_A Output

Sink Current

10 mA

Storage Temperature

−65˚C to

+150˚C

Soldering Information, Lead Temperature

SOIC-8 or MSOP-8 Packages

(Note 3)

Vapor Phase (60 seconds)

215˚C

Infrared (15 seconds)

220˚C

ESD Susceptibility (Note 4)

Human Body Model

2000 V

Machine Model

200 V

Operating Ratings

(Notes 1, 5)

Operating Temperature Range

0˚C to +125˚C

Electrical Characteristics

Temperature Range

T

MIN

≤T

A

≤T

MAX

LM89

0˚C

≤T

A

≤+85˚C

Supply Voltage Range (V

DD)

+3.0V to +3.6V

Temperature-to-Digital Converter Characteristics

Unless otherwise noted, these specifications apply for V

DD=+3.0Vdc to 3.6Vdc. Boldface limits apply for TA =TJ =

T

MIN

≤T

A

≤T

MAX; all other limits TA=TJ=+25˚C, unless otherwise noted.

Parameter

Conditions

Typical

Limits

Units

(Note 6)

(Note 7)

(Limit)

Temperature Error Using Local Diode

T

A = +25˚C to +125˚C, (Note 8)

±1

±3

˚C (max)

Temperature Error Using Remote Diode of

0.13 micron Pentium 4 with typical non-ideality

of 1.0021 and series R= 3.64

Ω. For other

processors email

hardware.monitor.team@nsc.com

to obtain the latest data. (T

D is the Remote

Diode Junction Temperature)

T

A = +30˚C

T

D = +80˚C

±0.75

˚C (max)

T

A = +30˚C to

+50˚C

T

D = +60˚C

to +100˚C

±1

˚C (max)

T

A = +0˚C to

+85˚C

T

D = +25˚C

to +125˚C

±3

˚C (max)

Remote Diode Measurement Resolution

11

Bits

0.125

˚C

Local Diode Measurement Resolution

8

Bits

1˚C

Conversion Time of All Temperatures at the

Fastest Setting

(Note 10)

31.25

34.4

ms (max)

Quiescent Current (Note 9)

SMBus Inactive, 16Hz conversion

rate

0.8

1.7

mA (max)

Shutdown

315

µA

D− Source Voltage

0.7

V

Diode Source Current

(D+ − D−)=+ 0.65V; high level

160

315

µA (max)

110

µA (min)

Low level

13

20

µA (max)

7

µA (min)

ALERT and T_CRIT_A Output Saturation

Voltage

I

OUT = 6.0 mA

0.4

V (max)

Power-On Reset Threshold

Measure on V

DD input, falling

edge

2.4

1.8

V (max)

V (min)

Local and Remote HIGH Default Temperature

settings

(Note 11)

+70

˚C

Local and Remote LOW Default Temperature

settings

(Note 11)

0

˚C

Local T_CRIT Default Temperature Setting

(Note 11)

+85

˚C

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