欢迎访问ic37.com |
会员登录 免费注册
发布采购

DCP010505DBP-U 参数 Datasheet PDF下载

DCP010505DBP-U图片预览
型号: DCP010505DBP-U
PDF下载: 下载PDF文件 查看货源
内容描述: 微型1W隔离未稳压DC / DC转换器 [Miniature, 1W Isolated UNREGULATED DC/DC CONVERTERS]
分类和应用: 转换器电源电路光电二极管输出元件
文件页数/大小: 8 页 / 129 K
品牌: BB [ BURR-BROWN CORPORATION ]
 浏览型号DCP010505DBP-U的Datasheet PDF文件第1页浏览型号DCP010505DBP-U的Datasheet PDF文件第2页浏览型号DCP010505DBP-U的Datasheet PDF文件第3页浏览型号DCP010505DBP-U的Datasheet PDF文件第4页浏览型号DCP010505DBP-U的Datasheet PDF文件第5页浏览型号DCP010505DBP-U的Datasheet PDF文件第6页浏览型号DCP010505DBP-U的Datasheet PDF文件第7页  
The DCP01B is a switching power supply and as such can  
place high peak current demands on the input supply. In  
order to avoid the supply falling momentarily during the fast  
switching pulses ground and power planes should be used to  
track the power to the input of DCP01B. If this is not  
possible then the supplies must be connected in a star  
formation with the tracks made as wide as possible.  
Connecting the DCP01B in Series  
Multiple DCP01B isolated 1W DC/DC converters can be  
connected in series to provide nonstandard voltage rails.  
This is possible by utilizing the floating outputs provided by  
the DCP01B’s galvanic isolation.  
Connect the positive VOUT from one DCP01B to the nega-  
tive VOUT (0V) of another (see Figure 1). If the SYNCIN pins  
are tied together, the self-synchronization feature of the  
DCP01B will prevent beat frequencies on the voltage rails.  
The SYNCIN feature of the DCP01B allows easy series  
connection without external filtering, minimizing cost.  
If the SYNCIN pin is being used then the tracking between  
device SYNCIN pins should be short to avoid stray capaci-  
tance. If the SYNCIN pin is not being used it is advisable to  
place a guard ring, (connected to input ground) around this  
pin to avoid any noise pick up.  
The outputs on dual output DCP01B versions can also be  
connected in series to provide two times the magnitude of  
VOUT as shown in Figure 2. For example, a dual 15V  
DCP01B could be connected to provide a 30V rail.  
The output should be taken from the device using ground  
and power planes, this will ensure minimum losses.  
A good quality low ESR capacitor placed as close as  
practicable across the input will reduce reflected ripple and  
ensure a smooth start up.  
Connecting the DCP01B in Parallel  
If the output power from one DCP01B is not sufficient, it is  
possible to parallel the outputs of multiple DCP01Bs, as  
shown in Figure 3. Again, the SYNCIN feature allows easy  
synchronization to prevent power-rail beat frequencies at no  
additional filtering cost.  
A good quality low ESR capacitor placed as close as  
practicable across the rectifier output terminal and output  
ground will give the best ripple and noise performance.  
THERMAL MANAGEMENT  
Due to the high power density of this device it is advisable  
to provide ground planes on the input and output.  
PCB LAYOUT  
Ripple and Noise  
Careful consideration should be given to the layout of the  
PCB in order that the best results can be obtained.  
VSUPPLY  
+VOUT  
VS  
+VOUT  
–VOUT  
0V  
DCP  
01B  
–VOUT  
0V  
COM  
FIGURE 2. Connecting Dual Outputs in Series.  
VSUPPLY  
VOUT  
VS  
SYNCIN  
DCP  
DCP  
01B  
01B  
0V  
0V  
VS  
2 x Power Out  
VOUT  
SYNCIN  
0V  
0V  
COM  
FIGURE 3. Connecting Multiple DCP01Bs in Parallel.  
®
8
DCP01B  
 复制成功!