TCK321G Datasheet, PDF (9/13 Pages) Toshiba Semiconductor – 36 V, Dual Inputs – Single Output Power Multiplexer IC with Over Voltage Protection

TCK321G, TCK322G
4. Power Dissipation
Board-mounted power dissipation ratings for TCK321G and TCK322G are available in the Absolute
Maximum Ratings table.
Power dissipation is measured on the board condition shown below.
[The Board Condition]
Board material: Glass epoxy (FR4)
Board dimension: 40 mm x 40 mm (Cu 4 layer)
2000
PD – Ta (WCSP16C)
1500
1000
500
0
−40
0
40
80
120
Ambient temperature Ta (°C)
Please allow sufficient margin when designing a board pattern to fit the expected power dissipation. Also take into
consideration the ambient temperature, input voltage, output current etc and applying the appropriate derating for
allowable power dissipation during operation.
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2015-10-20