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參數(shù)資料
| 型號(hào)： | TDA16847 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ICs for Consumer Electronics |
| 中文描述： | 消費(fèi)電子集成電路 |
| 文件頁數(shù)： | 14/28頁 |
| 文件大小： | 351K |
| 代理商： | TDA16847 |
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TDA 16846
TDA 16847
Data Sheet
14
2000-01-14
Fixed Frequency and Synchronization Circuit SYN (Pin 7)
Figure 11
shows the Fixed Frequency and Synchronization Circuit. The circuit is
disabled when Pin 7 is not connected. With
R
7
and
C
7
at Pin 7 the circuit is working.
C
7
is charged fast by approx. 1 mA and discharged slowly by
R
7
(
Figure 11
). The power
transistor is switched on at beginning of the charge phase. The switching frequency is
(charge time ignored)
:
When the oscillator circuit is working the Fold Back Point Correction is disabled (not
necessary in fixed frequency mode).
“
Switch on
”
is only possible when a
“
zero crossing
”
has occurred at Pin 3, otherwise
“
switch-on
”
will be delayed (
Figure 12
).
Figure 11
Synchronization and Fixed Frequency Circuit
f
R
7
C
7
×
--------------
≈
AES02656
-
+
15 k
75 k
5 V
7
R
C
7
SYN 7
Logic
LO
OUT
RZI
13
3
Zero Crossing Signal
External
Internal
30
k
OP1OUT
OP1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA16847-2 | 功能描述:功率因數(shù)校正 IC CTRLR FOR SWITCH MODE PWR SUPPLIES RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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| TDA16847G | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
| TDA16847XK | 制造商:Infineon Technologies AG 功能描述:Power Factor Correction PWM CONTRLR 1mA 14-Pin PDIP Tube |
| TDA16888 | 功能描述:功率因數(shù)校正 IC HI PERFORM PWR COMBI CONTROLLER RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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