Notes:
1.
R
TJA is determined with the device mounted on a 1 in2 oz. copper pad on a 1.5 x 1.5 in. board of FR-4 material. RTJC is guaranteed by design while RTJA is determined by the
user's board design.
(a) RTJA = 86 °C/W when mounted on a 1 in2 pad of 2 oz copper, 1.5 " x 1.5 " x 0.062 " thick PCB. For single operation.
(b) RTJA = 173 °C/W when mounted on a minimum pad of 2 oz copper. For single operation.
(c) RTJA = 69 oC/W when mounted on a 1 in2 pad of 2 oz copper, 1.5 ” x 1.5 ” x 0.062 ” thick PCB. For dual operation.
(d) RTJA = 151 oC/W when mounted on a minimum pad of 2 oz copper. For dual operation.
d)151 oC/W when
mounted on a
minimum pad of 2 oz
copper.
b)173 oC/W when
c)69 oC/W when
mounted on a 1 in2
pad of 2 oz copper.
a)86 oC/W when
mounted on a 1
in2 pad of 2 oz
copper.
mounted on
a
minimum pad of 2
oz copper.
2. Pulse Test : Pulse Width < 300 us, Duty Cycle < 2.0
FDMA1025P Rev.B5
www.fairchildsemi.com
4
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