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参数资料
| 型号： | TDA6111Q/N4 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PZFM9 |
| 封装： | PLASTIC, SOT-111, DIL-BENT-SIL, 9 PIN |
| 文件页数： | 3/18页 |
| 文件大小： | 114K |
| 代理商： | TDA6111Q/N4 |
1995 Feb 07
11
Philips Semiconductors
Preliminary specication
Video output amplier
TDA6111Q
TEST AND APPLICATION INFORMATION
Dissipation
Regarding dissipation, distinction must first be made
between static dissipation (independent of frequency) and
dynamic dissipation (proportional to frequency).
The static dissipation of the TDA6111Q is due to high and
low voltage supply currents and load currents in the
feedback network and CRT.
The static dissipation equals:
Rfb = value of feedback resistor.
Ioc = DC value of cathode current.
With Vfb =Voc = 100 V, Rfb =68k, Ioc = 0.6 mA and
other typical conditions as mentioned in Chapter
“Characteristics”, the static dissipation Pstat = 2.0 W.
P
stat
V
DDL
I
DDL
V
DDH
I
DDH
V
oc
I
oc
V
fb
V
fb
R
fb
--------
×
–
×
+
×
+
×
=
The dynamic dissipation equals:
Pdyn =VDDH × (CL +Cfb +Cint) × fi × Vo(p-p) ×δ
CL = load capacitance.
Cfb = feedback capacitance (≈ 150 fF).
Cint = internal load capacitance (≈ 4 pF).
fi = input frequency.
Vo(p-p) = output voltage (peak-to-peak value).
δ = non-blanking duty-cycle (≈ 0.8).
With CL = 10 pF, Cfb = 0, Cint = 4 pF, fi = 8 MHz
(simulation of worst-case noise), Vo(p-p) = 100 V and
δ = 80% then Pdyn = 1.8 W
The IC must be mounted on the picture tube base print to
minimize the load capacitance (CL).
The total power dissipation, Ptot =Pstat +Pdyn thus
amounts to 3.6 W under given conditions.
From Tj =Tamb +Ptot × Rth j-a <Tj(max) = 150 °C, Rth j-a of
the package and heatsink together must be < 24 K/W.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA6111QU | 功能描述:视频放大器 VIDEO OUTPUT AMP RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| TDA6118JF/N1 | 制造商:NXP Semiconductors 功能描述:6118JF/N1 制造商:Philips E C G Inc 功能描述:6118JF/N1 |
| TDA6118JF-N2 | 制造商:Panasonic Industrial Company 功能描述:IC |
| TDA6120 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Video output amplifier |
| TDA6120Q | 制造商:Panasonic Industrial Company 功能描述:SUB ONLY P-C1AA00000326 IC SUBBING WITH C1AA00000326 |
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