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(kāi)關(guān)電源的控制電路)
中文描述： 控制電路開(kāi)關(guān)電源使用MOS晶體管用品（用于開(kāi)關(guān)電源的控制電路）
文件頁(yè)數(shù)： 3/21頁(yè)
文件大?。?/td> 631K
代理商： TDA 4605
Semiconductor Group
35
TDA 4605
Pin Definitions and Functions
Pin No.
Function
1
Regulating Voltage:
Information input concerning secondary voltage.
By comparing the regulating voltage - obtained from the regulating winding ot the
transformer - with the internal reference voltage, the output impulse width on pin 5
is adapted to the load ot the secondary side (normal, overload, short-circuit, no
load).
2
Primary Current Simulation:
Information input regarding the primary current.
The primary current rise in the primary winding is simulated at pin 2 as a voltage
rise by means ot external RC-element. When a value is reached that is derived
from the regulating voltage at pin 1, the output impulse at pin 5 is terminated. The
RC-element serves to set the maximum power at the overload point set.
Input for Primary Voltage Monitoring:
In the normal operation
V
3
is moving
between the thresholds
V
3H
and
V
3L
(V
3H
>
V
3
>
V
3L
).
V
3
<
V
3L
: SMPS is switched OFF (line voltage too low).
V
3
>
V
3H
: Compensation of the overload point regulation (controlled by pin 2)
starts at
V
3H
:
V
3L
= 1.7.
Ground
Output:
Push-pull-output provides
±
1 A for rapid charge and discharge of the
gate capacitance ot the power MOS-transistor.
Supply Voltage Input:
A stable internal reference voltage
V
REF
is derived from
the supply voltage also the switching thresholds
V
6A
,
V
6E
,
V
6 max
and
V
6 min
for
the supply voltage detector. If
V
6
>
V
6E
then
V
REF
is switched on and swiched off
when
V
6
<
V
6A
. In addition the logic is only enable for
V
6 min
<
V
6
<
V
6 max
.
Soft-Start:
Input for soft-start. Start-up will begin with short pulses by connecting
a capacitor from pin 7 to ground.
3
4
5
6
7
8
Zero Detector:
Input tor the oscillation feedback. After starting oscillation, every
zero transit of the feedback voltage (falling edge) triggers an output impulse at
pin 5. The trigger threshold is at + 50 mV typical.
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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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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(kāi)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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