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LM5112 Datasheet(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM5112
Description  Tiny 7A MOSFET Gate Driver
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM5112 Datasheet(HTML) 9 Page - National Semiconductor (TI)

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Thermal Performance (Continued)
For LLP-6 package, the integrated circuit die is attached to
leadframe die pad which is soldered directly to the printed
circuit board. This substantially decreases the junction to
ambient thermal resistance (
θ
JA).
By providing suitable
means of heat dispersion from the IC to the ambient through
exposed copper pad, which can readily dissipate heat to the
surroundings,
θ
JA as low as 40˚C / Watt is achievable with
the package. The resulting Trise for the driver example
above is thereby reduced to just 5.5 degrees.
Therefore T
RISE is equal to
T
RISE = 0.138 x 40 = 5.5˚C
www.national.com
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