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參數(shù)資料
| 型號： | YB1520 |
| 廠商： | YOBON TECHNOLOGIES, INC. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | High Power Step-up DC-DC Converter, White LED Driver |
| 中文描述： | 高功率升壓型DC - DC轉(zhuǎn)換器，白光LED驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 1900K |
| 代理商： | YB1520 |
YB1520
High Power Step-up DC-DC Converter, White LED Driver
YB1520 MRev.1.2
www.yobon.com.tw
17
Capacitor Selection
Choose low ESR capacitors for the output
to minimize output voltage ripple. Multilayer
capacitors are a good choice for this as well.
A 47uF capacitor is sufficient for most
applications. For additional bypassing, a
100nF ceramic capacitor can be used to
shunt high frequency ripple on the input.
The input bypass capacitor Cin, as shown
in Figure 1, must be placed close to the IC.
This will reduce copper trace resistance
which affects input voltage ripple of the IC.
For additional input voltage filtering, a
100nF bypass capacitor can be placed in
parallel with Cin to shunt any high
frequency noise to ground. The output
capacitor, Cout, should also be placed
close to the IC. Any copper trace
connections for the Cout capacitor can
increase the series resistance, which
directly effect output voltage ripple.
The feedback network, resister R2 should
be kept close to the FB pin to minimize
copper trace connections that can inject
noise into the system. The ground
connection for the feedback resistor
network should connect directly to an
analog ground plane. The analog ground
plane should tie directly to the GND pin. If
no analog ground plane is available, the
ground
connection
for
the
feedback
network should tie directly to the GND pin.
Trace connections made to the inductor
and Schottky diode should be minimized to
reduce power dissipation and increase
overall efficiency.
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| YB1520ST25 | 制造商:YOBON 制造商全稱:YOBON 功能描述:High Power Step-up DC-DC Converter, White LED Driver |
| YB1521 | 制造商:YOBON 制造商全稱:YOBON 功能描述:High Power Step-Up DC-DC Converter & WLED Driver |
| YB1521ST25 | 制造商:YOBON 制造商全稱:YOBON 功能描述:High Power Step-Up DC-DC Converter & WLED Driver |
| YB1522 | 制造商:YOBON 制造商全稱:YOBON 功能描述:Step-up DC-DC Converter White LED Driver |
| YB1522ST25 | 制造商:YOBON 制造商全稱:YOBON 功能描述:Step-up DC-DC Converter White LED Driver |
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