- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377879 > MB3778 (Fujitsu Limited) RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS PDF資料下載
參數(shù)資料
| 型號(hào)： | MB3778 |
| 廠商： | Fujitsu Limited |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 16/29頁(yè) |
| 文件大小： | 276K |
| 代理商： | MB3778 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)
MB3778
16
I
SETTING THE SOFT START TIME
When power is switched on, the current begins charging the capacitor (C
DTC1
) connected the DTC1 terminal (pin
6). The soft start process operates by comparing the soft start setting voltage, which is proportional to the DTC1
terminal voltage, with the triangular waveform, and varying the ON-duty of the OUT terminal (pin 7).
The soft start time until the ON duty reaches 50
%
is determined by the following equation:
Soft start time (time until output ON duty
=
50
%
) .
ts (s) :
C
DTC1
×
Ra
×
Rb
/
(Ra
+
Rb)
×
ln (1
1.6 (Ra
+
Rb)
/
(2.46 Rb) )
For example, if Ra
=
4.7 k
and Rb
=
10 k
, the result is:
ts (s) : 0.1
×
C
DTC1
(
μ
F)
Soft Start on DCT1 terminal (DTC2 is similar)
V
REF
Ra
Rb
C
DTC1
DTC1
16
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB3778P | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3778PF | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3778PFV | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3782 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| MB3782P | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB3778_06 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller |
| MB3778P | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller |
| MB3778PF | 制造商:Panasonic Industrial Company 功能描述:IC |
| MB3778PF-E1 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller |
| MB3778PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:Switching Regulator Controller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。