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SI4972DY Datasheet(PDF) 7 Page - Vishay Siliconix |
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SI4972DY Datasheet(HTML) 7 Page - Vishay Siliconix |
7 / 15 page Vishay Siliconix Si4972DY Document Number: 73849 S09-0138-Rev. D, 02-Feb-09 www.vishay.com 7 TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted Normalized Thermal Transient Impedance, Junction-to-Ambient (Ch 1) 0.2 10-3 10-2 10 10-1 10-4 100 0.02 Square Wave Pulse Duration (s) Single Pulse t1 t2 Notes: PDM 1. Duty Cycle, D = 2. Per Unit Base = RthJA = 120 °C/W 3. TJM – TA = PDMZthJA(t) t1 t2 4. Surface Mounted 0.001 0.01 0.1 1 Duty Cycle = 0.5 1000 1 0.05 0.1 0.5 Normalized Thermal Transient Impedance, Junction-to-Case (Ch 1) 10-3 10-2 1 10 10-1 10-4 0.2 0.1 0.05 0.02 Single Pulse Duty Cycle = 0.5 Square Wave Pulse Duration (s) 1 0.1 0.01 |
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