LPC47M192-NW Standard Microsystems (SMSC), LPC47M192-NW Datasheet - Page 221

• Manufacturer Part Number: LPC47M192-NW
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47M192-NW

• Lead Free Status / RoHS Status: Compliant

14 APPENDIX A – THERMAL DIODE PARAMETERS
The Pentium II and Pentium III processors incorporate an on-die diode that may be used to monitor the die
temperature (junction temperature). The following table provides the diode parameters.
Notes:
1.
2.
3.
4.
5.
6.
SMSC DS – LPC47M192
Intel does not support or recommend operation of the thermal diode under reverse bias.
At room temperature with a forward bias of 630 mV.
n_ideality is the diode ideality factor parameter, as represented by the diode equation:
I
I
Vd is change in Vbe
q is the electron charge
K is the Boltzmann’s constant
T is the absolute temperature in
This specification applies to the Pentium II processor and Pentium III processor (CPUID=067xh) for the SC242 at
450MHz to 1.13GHz.
This specification applies to the Pentium III processor (CPUID=068xh) for the SC242 at 450MHz to 1.13GHz.
This specification applies to the Pentium III processor for the PGA370 socket at 500MHz to 1GHz.
2
1
=I
is saturation current
1
(e^ (Vd*q)/(nkT) - 1) where
SYMBOL
I
n_ideality
2
forward bias
MIN
5
5
1.0000
1.0057
o
K
Table 77 – Thermal Diode Parameters
DATASHEET
TYP
1.0065
1.0080
Page 221
MAX
500
300
1.0173
1.0125
UNIT
uA
uA
NOTES
1
6
2, 3, 4
2, 3, 5, 6
Rev. 03/30/05