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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AM186ER-25KCW Fiches technique(PDF) 61 Page - Advanced Micro Devices |
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AM186ER-25KCW Fiches technique(HTML) 61 Page - Advanced Micro Devices |
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61 / 112 page  Am186TMER and Am188TMER Microcontrollers Data Sheet 61 DRAF T THERMAL CHARACTERISTICS TQFP Package The Am186ER and Am188ER microcontrollers are specified for operation with case temperature ranges from 0 °C to +100°C for a commercial temperature device. Case temperature is measured at the top center of the package as shown in Figure 16. The various temperatures and thermal resistances can be determined using the equations in Figure 17 with information given in Table 10. θ JA is the sum of θJC and θCA . θJC is the internal thermal resistance of the assembly. θ CA is the case to ambient thermal resistance. The variable P is power in watts. Typical power supply current (ICC) for the Am186ER and Am188ER microcontrollers is 3.7 mA per MHz of clock frequency. Figure 16. Thermal Resistance ( °C/Watt) Figure 17. Thermal Characteristics Equations Table 10. Thermal Characteristics ( °C/Watt) θ JA θ CA θ JC θ JA = θJC + θCA TC Package/Board Airflow (Linear Feet per Minute) θ JC θ CA θ JA PQFP/2-Layer 0 fpm 7 38 45 200 fpm 7 32 39 400 fpm 7 28 35 600 fpm 7 26 33 TQFP/2-Layer 0 fpm 10 46 56 200 fpm 10 36 46 400 fpm 10 30 40 600 fpm 10 28 38 PQFP/4-Layer to 6-Layer 0 fpm 5 18 23 200 fpm 5 16 21 400 fpm 5 14 19 600 fpm 5 12 17 TQFP/4-Layer to 6-Layer 0 fpm 6 24 30 200 fpm 6 22 28 400 fpm 6 20 26 600 fpm 6 18 24 θ JA = θJC + θCA P = ICC ⋅ freq (MHz) ⋅ VCC TJ = TC + (P ⋅ θJC) TJ = TA + (P ⋅ θJA) TC = TJ – (P ⋅ θJC) TC = TA + (P ⋅ θCA) TA = TJ – (P ⋅ θJA) TA = TC – (P ⋅ θCA) |
Numéro de pièce similaire - AM186ER-25KCW |
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Description similaire - AM186ER-25KCW |
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