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EUA6027 bảng dữ liệu(PDF) 13 Page - Eutech Microelectronics Inc |
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EUA6027 bảng dữ liệu(HTML) 13 Page - Eutech Microelectronics Inc |
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13 / 14 page ![]() EUA6027 DS6027 Ver 1.0 Feb. 2007 13 Thermal Pad Considerations The thermal pad must be connected to ground. The package with thermal pad of the EUA6027 requires special attention on thermal design. If the thermal design issues are not properly addressed, the EUA6027 will go into thermal shutdown when driving a heavy load. The thermal pad on the bottom of the EUA6027 should be soldered down to a copper pad on the circuit board. Heat can be conducted away from the thermal pad through the copper plane to ambient. If the copper plane is not on the top surface of the circuit board, 8 to 10 vias of 13 mil or smaller in diameter should be used to thermally couple the thermal pad to the bottom plane. For good thermal conduction, the vias must be plated through and solder filled. The copper plane used to conduct heat away from the thermal pad should be as large as practical. If the ambient temperature is higher than 25℃,a larger copper plane or forced-air cooling will be required to keep the EUA6027 junction temperature below the thermal shutdown temperature (150℃). In higher ambient temperature, higher airflow rate and/or larger copper area will be required to keep the IC out of thermal shutdown. |
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