ZHCS429J March 2012 – November 2021 UCD3138
PRODUCTION DATA
THERMAL METRIC(1) | UCD3138 | UCD3138 | UCD3138 | UCD3138 | UNIT | |
---|---|---|---|---|---|---|
64 PIN QFN (RGC) | 40 PIN QFN (RHA) | 40 PIN QFN (RMH) | 40 PIN QFN (RJA) | |||
RθJA | Junction-to-ambient thermal resistance | 25.1 | 31.8 | 31.0 | 30.1 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 10.5 | 18.5 | 16.5 | 13.5 | °C/W |
RθJB | Junction-to-board thermal resistance | 4.6 | 6.8 | 6.3 | 4.9 | °C/W |
ψJT | Junction-to-top characterization parameter | 0.2 | 0.2 | 0.2 | 0.2 | °C/W |
ψJB | Junction-to-board characterization parameter | 4.6 | 6.7 | 6.3 | 4.8 | °C/W |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | 1.2 | 1.8 | 1.1 | 0.7 | °C/W |