參數(shù)資料
型號(hào): TDA8140
廠商: 意法半導(dǎo)體
英文描述: HORIZONTAL DEFLECTION POWER DRIVER
中文描述: 水平偏轉(zhuǎn)功率驅(qū)動(dòng)器
文件頁(yè)數(shù): 9/10頁(yè)
文件大小: 191K
代理商: TDA8140
The power dissipation on this application condition
is about 1.3W and Figures 10 and 11 show two
ways of heatsinking.
In the first case, a PCB copper area is used as a
heatsink L= 65mm while in the second case, the
device is soldered to an external heatsink ; in both
examples, the thermal resistance junction ambient
is 35°C/W.
The presence of thermal shut-down circuit does
mean that the heatsink can have a smaller factor
of safety compared with that of a conventional
circuit.
If for any reason, the junction temperature in-
creases up to 150°C, the thermal shut-down simply
switches off the device.
Figure 11 :
Example of an External Heatsink
L
Copper Area 35
μ
Thickness
8
Figure 10 :
Example of Heatsink using
P.C. Board Copper (L = 65mm)
3
8
TDA8140
9/10
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