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DNL04S0A0R20PFD 参数 Datasheet PDF下载

DNL04S0A0R20PFD图片预览
型号: DNL04S0A0R20PFD
PDF下载: 下载PDF文件 查看货源
内容描述: 负载的非隔离点DC / DC电源模块: 8.3-14Vin , 0.75-5.0V / 20A出 [Non-Isolated Point of Load DC/DC Power Modules: 8.3-14Vin, 0.75-5.0V/20A out]
分类和应用: 电源电路
文件页数/大小: 16 页 / 764 K
品牌: DELTA [ DELTA ELECTRONICS, INC. ]
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FEATURE DESCRIPTIONS (CON.)  
The output voltage tracking feature (Figure 35 to Figure  
37) is achieved according to the different external  
connections. If the tracking feature is not used, the  
TRACK pin of the module can be left unconnected or tied  
to Vin.  
Sequential Start-up  
Sequential start-up (Figure 35) is implemented by placing  
an On/Off control circuit between VoPS1 and the On/Off pin  
of PS2.  
PS1  
PS2  
Vin  
Vin  
For proper voltage tracking, input voltage of the tracking  
power module must be applied in advance, and the  
remote on/off pin has to be in turn-on status. (Negative  
logic: Tied to GND or unconnected. Positive logic: Tied to  
Vin or unconnected)  
VoPS1  
VoPS2  
R3  
On/Off  
R1  
Q1  
C1  
On/Off  
R2  
PS1  
PS2  
PS1  
PS2  
Simultaneous  
Simultaneous tracking (Figure 36) is implemented by  
using the TRACK pin. The objective is to minimize the  
voltage difference between the power supply outputs  
during power up and down.  
Figure 35: Sequential start-up  
The simultaneous tracking can be accomplished by  
connecting VoPS1 to the TRACK pin of PS2. Please note  
the voltage apply to TRACK pin needs to always higher  
than the VoPS2 set point voltage.  
PS1  
PS1  
PS2  
PS2  
PS1  
PS2  
Vin  
Vin  
VoPS1  
VoPS2  
TRACK  
On/Off  
Figure 36: Simultaneous  
On/Off  
PS1  
PS1  
PS2  
+V  
PS2  
Figure 37: Ratio-metric  
DS_DNL10SMD_07182012  
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