- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄200634 > UPC16318 Useage of Three-Terminal Regulators | User＇s Manual[05/2000] PDF資料下載
參數(shù)資料
| 型號： | UPC16318 |
| 英文描述： | Useage of Three-Terminal Regulators | User＇s Manual[05/2000] |
| 中文描述： | 使用三端穩(wěn)壓器|用戶手冊[05/2000] |
| 文件頁數(shù)： | 21/35頁 |
| 文件大?。?/td> | 187K |
| 代理商： | UPC16318 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
User’s Manual G12702EJ8V0UM00
28
<8> Peak output current IOpeak
This is the current at which the overcurrent protection circuit operates. It is defined as the output current
when the output voltage is lowered by 2% from its initial value.
As described in chapter 3, the overcurrent protection circuit operates together with the stable operation area.
Moreover, note that IOpeak decreases as temperature increases (negative temperature characteristic). Figure
6-4 shows the IOpeak-VIN-VO characteristics of the
PC7800A Series. For a nonlinear load such as a motor or
lamp, select a power supply IC that has sufficient leeway (50% or less of normal characteristic graph).
<9> Output short circuit current IOshort
This is the current that flows when output is short-circuited. Since most NEC power supply ICs have an on-
chip limiting circuit for securing SOA, the following relation holds.
IOshort < IOpeak
Like IOpeak, IOshort displays a negative temperature characteristic.
Refer to Figure 6-4 for temperature
characteristics of the output short circuit current and changes with respect to input voltage.
Figure 6-4. Example of IOpeak Characteristics (
PC7800A Series)
3.0
2.5
2.0
1.5
1.0
0.5
IOpeak- (VIN
VO) characteristic
Voltage difference between input and output VIN
VO (V)
Peak
output
current
I
Opeak
(A)
T
J
= 0°C
125°C
75°C 25°C
0
5
10
15
20
25
30
35
6.4 Design Methods
(A) Input circuit design
Determine the capacity of a smoothing capacitor of an input circuit using an O.H. Shade graph or simulator
so that the minimum value of the input voltage is not lower than the measurement conditions of output
voltage.
At this time, connect a film capacitor between input and GND of the power supply IC separate from the
smoothing capacitor to prevent abnormal oscillation (refer to the data sheet of each product type for capacitor
values).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPC29S78 | Useage of Three-Terminal Regulators | User＇s Manual[05/2000] |
| UPC3025 | Useage of Three-Terminal Regulators | User＇s Manual[05/2000] |
| UPC1663B | Analog IC |
| UPC1663C | Analog IC |
| UPC1663P | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPC16320 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:動靜態(tài)VFD驅(qū)動,36段輸出,三線串行輸入數(shù)據(jù) |
| UPC16324 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Useage of Three-Terminal Regulators | User＇s Manual[05/2000] |
| UPC1651G | 制造商:NEC 制造商全稱:NEC 功能描述:WIDE BAND UHF SILICON MMIC AMPLIFIER |
| UPC1652G | 制造商:NEC 制造商全稱:NEC 功能描述:SILICON MONOLITHIC BIPOLAR INTEGRATED CIRCUIT WIDE BAND AMPLIFIER |
| UPC1653A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。