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STP120NF04 Datasheet(PDF) 9 Page - STMicroelectronics |
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STP120NF04 Datasheet(HTML) 9 Page - STMicroelectronics |
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9 / 14 page ![]() STP120NF04 Electrical characteristics 9/14 The previous curve gives the safe operating area for unclamped inductive loads, single pulse or repetitive, under the following conditions: PD(AVE) =0.5*(1.3*BVDSS *IAV ) EAS(AR) =PD(AVE) *tAV Where: IAV is the allowable current in avalanche PD(AVE) is the average power dissipation in avalanche (single pulse) tAV is the time in avalanche To derate above 25 °C, at fixed IAV, the following equation must be applied: IAV = 2 * (Tjmax - TCASE) / (1.3 * BVDSS * Zth) Where: Zth = K * Rth is the value coming from Normalized Thermal Response at fixed pulse width equal to TAV. Figure 17. Allowable Iav vs time in avalanche |
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