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LM90 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM90
Description  3 Degree Celcious Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM90 Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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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≤TA≤TMAX
LM90
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≤TA≤TMAX; 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)
±1.5
±4
˚C (max)
Temperature Error Using Remote Diode of
mobile Pentium III with typical non-ideality of
1.008. 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 to
+50˚C
T
D = +25˚C
to +100˚C
±3
˚C (max)
T
A = +0˚C to
+85˚C
T
D = +25˚C
to +125˚C
±4
˚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
www.national.com
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