LM99 datasheet(4/20 Pages) NSC

4 / 20 page

Absolute Maximum Ratings (Note 1)

Supply Voltage

−0.3 V to 6.0 V

Voltage at SMBData, SMBCLK,

ALERT, T_CRIT_A

−0.5 V to 6.0 V

Voltage at Other Pins

−0.3 V to

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

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

MIN

≤ T

MAX

LM99

0˚C

≤ T

≤ +85˚C

Supply Voltage Range (V

DD)

+3.0 V to +3.6 V

Temperature-to-Digital Converter Characteristics

Unless otherwise noted, these specifications apply for V

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

≤ 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

A = +25˚C to +125˚C, (Note 8)

±1

±3

˚C (max)

Temperature Error Using Remote Diode

Connected Transistor (T

D is the Remote

Diode Junction Temperature)

D =TLM99 + 16˚C

A = +30˚C to +50˚C and TD =

+120˚C to +140˚C

±1

˚C (max)

A = +0˚C to +85˚C and TD =

+25˚C to +140˚C

±3

˚C (max)

Remote Diode Measurement Resolution

Bits

0.125

˚C

Local Diode Measurement Resolution

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, 16 Hz

conversion rate

0.8

1.7

mA (max)

Shutdown

315

µA

D− Source Voltage

0.7

Diode Source Current

D+ −VD−) = + 0.65 V; high

level

160

315

µA (max)

110

µA (min)

Low level

µA (max)

µA (min)

ALERT and T_CRIT_A Output Saturation

Voltage

OUT = 6.0 mA

0.4

V (max)

Power-On-Reset (POR) 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) Add 16˚C for true

Remote Temperature.

+70

˚C

Local and Remote LOW Default Temperature

settings

(Note 11) Add 16˚C for true

Remote Temperature.

0˚C

Local T_CRIT Default Temperature Setting

(Note 11)

+85

˚C

Remote T_CRIT Default Temperature Setting

(Note 11) Add 16˚C for 126˚C

true Remote T_CRIT Setting

+110

˚C

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