參數(shù)資料
型號(hào): MB3825
廠商: Fujitsu Limited
英文描述: 6-ch DC/DC Converter IC With Synchronous Rectifier
中文描述: 6通道DC / DC轉(zhuǎn)換同步整流集成電路
文件頁(yè)數(shù): 22/39頁(yè)
文件大?。?/td> 465K
代理商: MB3825
MB3825A
22
I
METHOD OF SETTING THE OUTPUT CURRENT
Figure 3 shows the configuration of the output circuits, and Figure 4 illustrates how the sink current value of the
output current waveform has a constant current setting. Note that the sink current is set by the following formula
Sink current
=
(V
B
/R
B
)
×
60 :
56/R
B
[A]
0
t
×
60
×
1
GND (O)
CB2
10 k
100 k
VCC(O)
CB1
OUT1
R
B
VB
V
B
Figure 3. Output circuit (main side)
Figure 4. Output current waveform
External PNP transistor
Sink current
Source
current
Output ON
base current
speed-up
Output OFF
driver
To PWM
comparator
Source current (peak)
Speed-up current
Output current
Sink current
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