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参数资料
| 型号： | ISL59920IRZ |
| 厂商： | Intersil |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC ANLG VID LINE TRPL 20-QFN |
| 标准包装： | 72 |
| 类型： | 视频延迟线 |
| 应用： | RGB 视频信号 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
15
FN6826.2
August 31, 2010
Power Dissipation
As the delay setting increases, additional filter blocks turn on
and insert into the signal path. When the delay per channel
increments, VSP current increases by 0.9mA while VSM
does not change significantly. Under the extreme settings,
the positive supply current reaches 141mA and the negative
supply current can be 41mA. Operating at ±5V power supply,
the worst-case ISL5992x power dissipation is:
The minimum
θ
JA required for long term reliable operation of
the ISL5992x is calculated using Equation 2:
Where:
TJ is the maximum junction temperature (+135°C)
TA is the maximum ambient temperature (+85°C)
For a 20 Ld package on a well laid-out PCB with good
connectivity between the QFN’s pad and the PCB copper
area, 31°C/W
θ
JA thermal resistance can be achieved. This
yields a much higher power dissipation of 3.54W using
heat spreader must be soldered to the PCB. Heat flows
through the heat spreader to the circuit board copper then
spreads and convects to air. Thus, the PCB copper plane
becomes the heatsink (see TB389). This has proven to be a
very effective technique. A separate application note, which
details the 20 Ld QFN PCB design considerations, is
available.
PD
5
141mA
5
41mA
910mW
=
+
=
(EQ. 1)
θ
JA
T
J
(
T
A ) PD
55
°
=
CW
–
=
(EQ. 2)
ISL59920, ISL59921, ISL59922, ISL59923
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL59920IRZ-EVALZ | 制造商:Intersil Corporation 功能描述:ISL59920IRZ-EVALZ (PB-FREE ) EVALUATION BOARD - ROHS COMPLIA - Bulk |
| ISL59920IRZ-T7 | 功能描述:视频 IC ISL95311W I2C 128 POS DCP 10 KOHM S+/- RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| ISL59921 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple Analog Video Delay Lines |
| ISL59921IR | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple Analog Video Delay Lines |
| ISL59921IRZ | 功能描述:视频 IC ISL95810W SINGLE 256 TAP I2C 10KOHM XDCP RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
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