參數(shù)資料
型號(hào)： TDA 4605
廠商： SIEMENS AG
英文描述： Control Circuit for Switch Mode Power Supplies Using MOS Transistors(用于開關(guān)電源的控制電路)
中文描述： 控制電路開關(guān)電源使用MOS晶體管用品（用于開關(guān)電源的控制電路）
文件頁(yè)數(shù)： 6/21頁(yè)
文件大?。?/td> 631K
代理商： TDA 4605
Semiconductor Group
38
TDA 4605
Block Diagram
Pin 1
The regulating voltage forwarded to this pin is compared with a stable internal reference voltage
V
R
in the
regulating and overload amplifier
. The output of this stage is ted to the stop comparator.
Pin 2
A voltage proportional to the drain current ot the switching transistor is generated there by the
external RC-combination in conjunction with the
primary current transducer
. The output of this
transducer is controlled by the logic and referenced to the internal stable voltage
V
2B
. If the voltage
V
2
exceeds the output voltage of the regulating amplifier, the logic is reset by the stop comparator
and consequently the output ot pin 5 is switched to low potential. Further inputs tor the logic stage
are the output for the
start impulse generator
with the stable reference potential
V
ST
and the
supply voltage monitor
.
Pin 3
The down-divide primary voltage applied there stabilizes the overload point. In addition the logic is
disabled in the event of low voltage by comparison with the internal stable voltage
V
V
in the primary
voltage monitor block.
Pin 4
Ground
Pin 5
In the output stage the output signals produced by the logic are shifted to a leved suitable for MOS-
power transistors.
Pin 6
From the supply voltage
V
6
are derived a stable internal reference
V
REF
and the switching threshold
V
6A
,
V
6E
,
V
6 max
and
V
6 min
for the supply voltage monitor. All reference values (
V
R
,
V
2B
,
V
ST
) are
derived from
V
REF
. If
V
6
>
V
VE
the
V
REF
is switched on and switched off when
V
6
<
V
6A
. In addition,
the logic is released only for
V
6 min
<
V
6
<
V
6 max
.
Pin 7
The output of the overload amplifier is connected to pin 7. A load on this output causes a reduction
in maximal impulse duration. This function can be used to implement a soft start, when pin 7 is
connected to ground by a capacitor.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA4605_03 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CONTROL CIRCUIT FOR SWITCH MODE POWER SUPPLIES USING MOS TRANSISTORS
TDA46052 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TDA4605-2 功能描述:軟開關(guān) PWM 控制器 CTRL IC FOR SWITCH MODE PWR SUPPLIES RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
TDA46052HKLA1 制造商:Infineon Technologies AG 功能描述:Controller Switch Mode Power Supply 8-Pin PDIP 制造商:Infineon Technologies AG 功能描述:IC POWER SUPPLY CONTROLLER 8DIP
TDA46053 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
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