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E2000 Scheda tecnica(PDF) 82 Page - Intel Corporation |
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E2000 Scheda tecnica(HTML) 82 Page - Intel Corporation |
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82 / 104 page ![]() Thermal Specifications and Design Considerations 82 Datasheet NOTES: 1. Intel does not support or recommend operation of the thermal diode under reverse bias. 2. Same as IFW in Table 29. 3. Preliminary data. Will be characterized across a temperature range of 50–80 °C. 4. Not 100% tested. Specified by design characterization. 5. The ideality factor, nQ, represents the deviation from ideal transistor model behavior as exemplified by the equation for the collector current: IC = IS * (e qVBE/nQkT –1) Where IS = saturation current, q = electronic charge, VBE = voltage across the transistor base emitter junction (same nodes as VD), k = Boltzmann Constant, and T = absolute temperature (Kelvin). 6. The series resistance, RT, provided in the Diode Model Table (Table 29) can be used for more accurate readings as needed. The Intel® Pentium® Dual-Core Desktop processor E2000 series does not support the diode correction offset that exists on other Intel processors. Table 30. Thermal “Diode” Parameters using Transistor Model Symbol Parameter Min Typ Max Unit Notes IFW Forward Bias Current 5 — 200 µA 1, 2 IE Emitter Current 5 — 200 nQ Transistor Ideality 0.997 1.001 1.005 - 3, 4, 5 Beta 0.391 — 0.760 3, 4 RT Series Resistance 2.79 4.52 6.24 Ω 3, 6 Table 31. Thermal Diode Interface Signal Name Land Number Signal Description THERMDA AL1 diode anode THERMDC AK1 diode cathode |
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