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參數(shù)資料
| 型號： | TDA6118JF/N2/S1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PSFM9 |
| 封裝： | PLASTIC, SOT-111-1, DIL-BENT-SIL, 9 PIN |
| 文件頁數(shù)： | 10/15頁 |
| 文件大小： | 99K |
| 代理商： | TDA6118JF/N2/S1 |
2004 Aug 26
4
Philips Semiconductors
Product specication
Video output amplier
TDA6118JF
THERMAL CHARACTERISTICS
Note
1. An external heatsink is necessary.
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
Rth(j-a)
thermal resistance from junction to ambient
56
K/W
Rth(j-n)
thermal resistance from junction to n
note 1
12.2
K/W
Thermal protection
The TDA6118JF is protected against overheating through
a thermal protection circuit (see Fig.1). This circuit realizes
a decrease of internal quiescent currents at high
temperatures and limits the bandwidth and the static and
dynamic power dissipation (see Fig.3).
Typical values for the bandwidth:
25 % decrease at Tprot = 145 °C
50 % decrease at Tprot = 155 °C.
Where Tprot is the temperature on the spot of the thermal
protection circuit.
The equivalent thermal resistance network is given in
handbook, halfpage
20
(1)
(2)
Ptot
(W)
180
Tamb (°C)
8
6
2
0
4
60
100
140
MGU660
Fig.3 Power derating curves.
(1) Infinite heatsink.
(2) No heatsink.
handbook, halfpage
MGU661
3.6 K/W
outputs
fin
thermal protection circuit
8.6 K/W
Fig.4 Equivalent thermal resistance network.
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