LM95231 datasheet(4/20 Pages) NSC

4 / 20 page

Absolute Maximum Ratings (Note 1)

Supply Voltage

−0.3 V to 6.0 V

Voltage at SMBDAT, SMBCLK

−0.5V to 6.0V

Voltage at Other Pins

−0.3 V to (V

DD + 0.3 V)

Input Current at All Pins (Note 2)

±5mA

Package Input Current (Note 2)

30 mA

SMBDAT Output Sink Current

10 mA

Junction Tempeature (Note 3)

125˚C

Storage Temperature

−65˚C to +150˚C

ESD Susceptibility (Note 4)

Human Body Model

2000 V

Machine Model

200 V

Soldering process must comply with National’s reflow

temperature profile specifications. Refer to

http://www.national.com/packaging/. (Note 5)

Operating Ratings

(Notes 1, 3)

Operating Temperature Range

0˚C to +125˚C

Electrical Characteristics

Temperature Range

MIN

≤T

MAX

LM95231BIMM, LM95231CIMM

0˚C

≤T

≤+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 =

MIN

≤T

MAX; all other limits TA=TJ=+25˚C, unless otherwise noted. TJ is the junction temperature of the LM95231. TD is the

junction temperature of the remote thermal diode.

Parameter

Conditions

Typical

LM95231

BIMM

LM95231

CIMM

Units

(Note 6)

Limits

(Note 7)

Limits

(Note 7)

(Limit)

Accuracy Using Local Diode

A = 0˚C to +85˚C, (Note 8)

±1

±3

˚C (max)

Accuracy Using Remote Diode, see(Note 9)

for Thermal Diode Processor Type.

A = +20˚C to

+40˚C; T

D =

+45˚C to +85˚C

Intel 90nm

Thermal

Diode

±0.75

˚C (max)

A = +20˚C to

+40˚C; T

D =

+45˚C to +85˚C

MMBT3904

Thermal

Diode

±1.25

˚C (max)

A = +20˚C to

+40˚C; T

D =

+45˚C to +85˚C

Intel 90nm

and

MMBT3904

Thermal

Diodes

±1.25

˚C (max)

A = +0˚C to

+85˚C; T

D =

+25˚C to

+140˚C

Intel 90nm

and

MMBT3904

Thermal

Diodes

±2.5

˚C (max)

Remote Diode Measurement Resolution with

filtering turned off

10+sign/11

Bits

0.125

˚C

Remote Diode Measurement Resolution with

digital filtering turned on

12+sign/13

Bits

0.03125

˚C

Local Diode Measurement Resolution

9+sign

Bits

0.25

˚C

Conversion Time of All Temperatures at the

Fastest Setting

(Note 11) TruTherm Mode

Disabled

75.8

83.9

ms (max)

TruTherm Mode enabled

79.2

87.7

ms (max)

Average Quiescent Current (Note 10)

SMBus Inactive, 1 Hz

conversion rate

402

545

µA (max)

Shutdown

272

µA

D− Source Voltage

0.4

Diode Source Current Ratio

LM95231 Datasheet(PDF) 4 Page - National Semiconductor (TI)

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