JAJSD34C April 2017 – April 2018 CSD88599Q5DC
PRODUCTION DATA.
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The CSD88599Q5DC power block device has the ability to utilize the PCB copper planes as the primary thermal path. As such, the use of thermal vias included in the footprint is an effective way to pull away heat from the device and into the system board. Concerns regarding solder voids and manufacturability issues can be addressed through the use of three basic tactics to minimize the amount of solder attach that will wick down the via barrel.
To take advantage of the DualCool thermally enhanced package, an external heatsink can be applied on top of the power block devices. For low EMI, the heatsink is usually connected to GND through the mounting screws to the PCB. Gap pad insulators with good thermal conductivity should be used between the top of the package and the heatsink. The Bergquist Sil-Pad 980 is recommended which provides excellent thermal impedance of 1.07°C/W @ 50 psi.