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(yè)數(shù)： 9/28頁(yè)
文件大?。?/td> 351K
代理商： TDA16847
TDA 16846
TDA 16847
Data Sheet
9
2000-01-14
Figure 5
Startup Voltage Diagram
Primary Current Simulation PCS (Pin 2) / Current Limiting
A voltage proportional to the current of the power transistor is generated at Pin 2 by the
RC-combination
R
2
,
C
2
(
Figure 4
). The voltage at Pin 2 is forced to 1.5 V when the
power transistor is switched off and during its switch on time
C
2
is charged by
R
2
from
the rectified mains. The relation of
V
2
and the current in the power transistor (
I
primary
) is
:
L
primary
: Primary inductance of the transformer
The voltage
V
2
is applied to one input of the On Time Comparator ONTC (see
Figure 2
).
The other input is the control voltage. If
V
2
exceeds the control voltage, the driver
switches off (current limiting). The maximum value of the control voltage is the internal
reference voltage 5 V, so the maximum current in the power transistor (
I
Mprimary
) is
:
The control voltage can be reduced by either the Error Amplifier EA (current mode
regulation), or by an opto coupler at Pin 5 (regulation with opto coupler isolation) or by
the voltage
V
11
at Pin 11 (Fold Back Point Correction).
AED02650
t
Startup
Operation
14
V
V
max
On
V
V
Off
V
2
1,5 V
L
primary
-------------------------------
I
primary
C
2
×
×
R
2
+
=
I
Mprimary
3,5 V
--------------------------------------
R
×
C
2
×
L
primary
=
相關(guān)PDF資料
PDF描述
TDA16847G ICs for Consumer Electronics
TDA16888 High Performance Power Combi Controller
TDA16888G High Performance Power Combi Controller
TDA16888 High Performance Power Combi Controller
TDA16888G High Performance Power Combi Controller
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
TDA168472XK 制造商:Infineon Technologies AG 功能描述:Power Factor Correction PWM CONTRLR 1mA 14-Pin PDIP
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*