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CPC1988J Datasheet(PDF) 3 Page - IXYS Corporation |
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CPC1988J Datasheet(HTML) 3 Page - IXYS Corporation |
3 / 7 page INTEGRATED CIRCUITS DIVISION 3 www.ixysic.com R07 CPC1988 2 Thermal Characteristics 2.1 Thermal Management Device high current characterization was performed using Kunze heat sink KU 1-159, phase change thermal interface material KU-ALC 5, and transistor clip KU 4-499/1. This combination provided an approximate junction-to-ambient thermal resistance of 12.5°C/W. 2.2 Heat Sink Calculation Higher load currents are possible by using lower thermal resistance heat sink combinations. Parameter Conditions Symbol Rating Units Thermal Resistance (Junction to Case) - JC 0.3 °C/W Thermal Resistance (Junction to Ambient) Free Air JA 33 °C/W Junction Temperature (Operating) - TJ -40 to +100 °C T J = Junction Temperature (°C), TJ ≤ 100°C * T A = Ambient Temperature (°C) I L(99) = Load Current with Case Temperature @ 99°C (ADC) I L = Desired Operating Load Current (ADC), IL ≤ IL(MAX) θ JC = Thermal Resistance, Junction to Case (°C/W) = 0.3°C/W θ CA = Thermal Resistance of Heat Sink & Thermal Interface Material , Case to Ambient (°C/W) P D(99) = Maximum power dissipation with case temperature held at 99ºC = 3.33W * Elevated junction temperature reduces semiconductor lifetime. NOTE: The exposed surface of the DCB substrate is not to be soldered. Heat Sink Rating θ CA = - θ JC (T J - TA) IL(99) 2 I L 2 • P D(99) |
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