LM86

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SNIS114E – DECEMBER 2001 – REVISED MARCH 2013

Operating Ratings

Operating Temperature Range

0°C to +125°C

Electrical Characteristics Temperature Range

LM86

0°C

+3.0V to +3.6V

Temperature-to-Digital Converter Characteristics

Parameter

Test Conditions

Typical

Limits

Unit

(1)

(2)

(Limit)

Temperature Accuracy Using Local Diode

(3)

±1

±3

°C (max)

Temperature Accuracy Using Remote Diode of

±0.75

°C (max)

mobile Pentium III with typical nonideality of 1.008.

±1

°C (max)

For other processors email

+100°C

hardware.monitor.team@nsc.com to obtain the

±3

°C (max)

+125°C

Temperature)

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

(4)

31.25

34.4

ms (max)

Setting

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

0.4

V (max)

Power-On Reset Threshold

2.4

V (max)

1.8

V (min)

Local and Remote HIGH Default Temperature

(6)

+70

°C

settings

Local and Remote LOW Default Temperature

(6)

0

°C

settings

Local and Remote T_CRIT Default Temperature

(6)

+85

°C

Setting

(1)

(2)

Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).

(3)

Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the

internal power dissipation of the LM86 and the thermal resistance. See () for the thermal resistance to be used in the self-heating

calculation.

(4)

This specification is provided only to indicate how often temperature data is updated. The LM86 can be read at any time without regard

to conversion state (and will yield last conversion result).

(5)

Quiescent current will not increase substantially with an SMBus.

(6)

Default values set at power up.

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