參數(shù)資料
型號: AXDA1600DUT3C
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: 1400 MHz, MICROPROCESSOR, CPGA453
封裝: OPGA-453
文件頁數(shù): 57/106頁
文件大?。?/td> 2275K
代理商: AXDA1600DUT3C
42
Electrical Data
Chapter 8
AMD Athlon XP Processor Model 8 Data Sheet
25175H—March 2003
Preliminary Information
8.13
Thermal Diode Characteristics
The AMD Athlon XP processor model 8 provides a diode that
can be used in conjunction with an external temperature sensor
to determine the die temperature of the processor. The diode
anode (THERMDA) and cathode (THERMDC) are available as
pins on the processor, as described in “THERMDA and
For information about thermal design for the AMD Athlon XP
processor model 8, including layout and airflow considerations,
see the AMD Processor Thermal, Mechanical, and Chassis Cooling
Design Guide, order# 23794, and the cooling guidelines on
http://www.amd.com.
Thermal Diode
Electrical
Characteristics
Table 17 shows the AMD Athlon XP processor model 8
characteristics of the on-die thermal diode. For information
about calculations for the ideal diode equation and
temperature offset correction, see Appendix A, "Thermal
Diode Calculations," on page 77.
Table 17. Thermal Diode Electrical Characteristics
Symbol
Parameter
Description
Min
Nom
Max
Units
Notes
I
Sourcing current
5
300
A
1
nf, lumped
Lumped ideality
factor
1.00000
1.00374
1.00900
2, 3, 4
nf, actual Actual ideality factor
1.00261
3, 4
RT
Series Resistance
0.93
3, 4
Notes:
1. The sourcing current should always be used in forward bias only.
2. Characterized at 95°C with a forward bias current pair of 10
A and 100 A. AMD
recommends using a minimum of two sourcing currents to accurately measure the
temperature of the thermal diode.
3. Not 100% tested. Specified by design and limited characterization.
4. The lumped ideality factor adds the effect of the series resistance term to the actual ideality
factor. The series resistance term indicates the resistance from the pins of the processor to the
on-die thermal diode. The value of the lumped ideality factor depends on the sourcing current
pair used.
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