- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384965 > TDA4718A (SIEMENS A G) Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS PDF資料下載
參數(shù)資料
| 型號： | TDA4718A |
| 廠商： | SIEMENS A G |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Control IC for Single-Ended and Push-Pull Switched-Mode Power Supplies SMPS |
| 中文描述： | 0.07 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDIP18 |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 436K |
| 代理商： | TDA4718A |
TDA 4700
TDA 4718
Semiconductor Group
5
Pin Definitions and Functions (TDA 4718)
Circuit Description
Voltage Controlled Oscillator (VCO)
The VCO generates a sawtooth voltage. The duration of the falling edge is determined
by the value of
C
T
. The duration of the rising edge of the waveform and, therefore,
approximately the frequency, is determined by the value of
R
T
. By varying the voltage at
C
filter
, the oscillator frequency can be changed by its rated value. During the fall time, the
VCO provides a trigger signal for the ramp generator, as well as an L signal for a number
of IC parts to be controlled.
Pin
Symbol
Function
1
GND
Ground 0 V
2
3
R
R
C
R
Ramp generator
R
R
Ramp generator
C
R
4
5
I COMP
I SYNC
+ Input comparator K2
Sync. input
6
7
IUV
IOV
Input undervoltage, ON/OFF
Input overvoltage
8
9
–
I
DYN
+
I
DYN
Input dynamic current limitation (–)
Input dynamic current limitation (+)
10
11
+
V
REF
+
V
S
Reference voltage
Supply voltage
12
13
Q 2
Q 1
Output Q2
Output Q1
14
15
Q SYNC
C
soft start
Sync. output
Soft start
16
17
18
R
T
C
filter
C
T
VCO
R
T
Capacitance
VCO
C
T
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA4714C | IC for Switched-Mode Power Supplies (SMPS) |
| TDA4716C | IC for Switched-Mode Power Supplies (SMPS) |
| TDA4814 | Power Factor Controller IC for High Power Factor and Active Harmonic Filter |
| TDA4817 | Power Factor Controller IC for High Power Factor and Active Harmonic Filtering |
| TDA4817G | Power Factor Controller IC for High Power Factor and Active Harmonic Filtering |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4722 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Processor for VCR |
| TDA4724 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Processor for VCR |
| TDA4725 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SECAM-L CHROMINANCE PROCESSOR FOR VHS VIDEO RECORDERS |
| TDA4725T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SECAM-L CHROMINANCE PROCESSOR FOR VHS VIDEO RECORDERS |
| TDA474K35CB | 制造商:SHARMA 制造商全稱:Sharma Electro Components,Inc 功能描述:Tantalum Capacitors |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。