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參數(shù)資料
| 型號(hào)： | MB3881 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
| 中文描述： | 8通道DC / DC變換器的同步整流集成電路的電壓升壓和降壓 |
| 文件頁數(shù)： | 21/40頁 |
| 文件大?。?/td> | 509K |
| 代理商： | MB3881 |
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MB3881
21
(2) Setting Soft Start
Channel-8 soft start
Channel 8 can be soft-started by connecting a capacitor between the DTC8 terminal (pin 3) and GND. The soft
start time depends on the input voltage and load current.
Channel 1 to 4 and channel 7 soft start
Soft start time
ts[s] : 1.25
×
Cs[
μ
F]
Note : The short-circuit detection function remains working even during soft start operation of channels 1 to 4 and 7.
Channel-5, 6 soft start
Channel 5 can be soft-started by connecting a capacitor between the +IN5 terminal (pin 22) and GND.
Channel 6, like channel 5, can be soft-started by connecting a capacitor between the +IN6 terminal (pin 16) and
GND.
I
SETTING THE OSCILLATION FREQUENCY
The oscillation frequency can be set by connecting the timing capacitor (C
T
) to the CT terminal (pin 34) and the
timing resistor (R
T
) to the RT terminal (pin 33).
Oscillation frequency
f
OSC
(kHz) :
550000
C
T
(pF)
×
R
T
(k
)
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|---|---|
| MB3881PFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
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| MB3881PMC2-G-BNDE1 | 制造商:Fujitsu 功能描述:Bulk |
| MB3882 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:2-channel DC/DC Converter IC with Synchronous Rectifier |
| MB3882PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:2-channel DC/DC Converter IC with Synchronous Rectifier |
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