MOSFET 溫升測試計算方法:
1. Tc+I D*I D*R DS(ON)*Rθjc+T A(MAX)-T A=T MOSFET;大展宏图是什么意思
JUDGE PASS: T MOSFET <Tj . (一般性判定方法,僅計算Conduction loss,而并未考慮到Switching loss). T C: CASE TEMPERATURE;
中国横店I D: MOSFET DRAIN CURRENT(RMS);
葡萄树简笔画R DS(ON): STATIC DRAIN-SOURCE ON RESISTANCE;胡立阳
Rθjc: THERMAL RESISTANCE JUNCTION-CASE MAX;
T A(MAX): POWER ENVIRONMENTAL OPERATION TEMPERATURE RANGE MAX;
T A: TEST AMBIENT TEMPERATURE;
Tj: MOSFET OPERATING JUNCATION TEMPERATURE.
文案说说2. T C+(P OUT-P IN)*Rθjc+T A(MAX)-T A=T MOSFET.
JUDGE PASS: T MOSFET <Tj*90%.(加嚴判定方法, 將POWER的所有功耗皆算為MOSFET之功耗)
T C: CASE TEMPERATURE;
孔雀照片P OUT : OUTPUT POWER;
PIN: INPUT POWER;
供电量Rθjc: THERMAL RESISTANCE JUNCTION-CASE MAX;
T A(MAX): POWER ENVIRONMENTAL OPERATION TEMPERATURE RANGE MAX;
T A: TEST AMBIENT TEMPERATURE;
Tj: MOSFET OPERATING JUNCATION TEMPERATURE.
具体實例如下一頁:
冬去春来的诗句12015/9/14