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MRF157 Datasheet(PDF) 4 Page - Tyco Electronics |
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MRF157 Datasheet(HTML) 4 Page - Tyco Electronics |
4 / 7 page 4 3 2 1 0 0 20 40 60 80 100 Pin, POWER INPUT (WATTS) VDD = 60 V IDQ = 2 x 800 mA f = 30 MHz t1 = 1 ms (See Fig. 9) t2 = 10 ms (See Fig. 9) Figure 8. Output Power versus Input Power Under Pulse Conditions (2 x MRF157) Figure 9. Thermal Response versus Pulse Width Figure 10. Series Equivalent Impedance 0.01 0.02 0.05 0.1 0.2 0.5 1 10-2 10-1 110 102 103 104 PULSE WIDTH, t (ms) D = 0.5 0.2 0.1 0.05 0.02 SINGLE PULSE RθJC(t) = r(t) RθJC RθJC = 0.13°C/W MAX D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 TJ(pk) - TC = P(pk) RθJC(t) P(pk) t1 t2 DUTY CYCLE, D = t1/t2 Note: Pulse data for this graph was taken in a push–pull circuit similar Note: to the one shown. However, the output matching network was Note: modified for the higher level of peak power. Note: To determine ZOL*, use formula = ZOL* (VCC – Vsat)2 2Po f = 100 MHz 2.0 4.0 7.5 15 30 60 VDD = 50 V IDQ = 800 mA Pout = 600 W Zo = 10 Ω Zin 4 REV 1 |
Similar Part No. - MRF157 |
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Similar Description - MRF157 |
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