57310001-T DSPB120工控系统系列产品卡件模块
功能描述（续）
2功率级DCP02系列设备采用推挽式中心抽头拓扑。DCP02设备以400 kHz（800 kHz振荡器除以2）切换。3振荡器和看门狗电路板载800 kHz振荡器通过2分频电路产生开关频率。该振荡器可以与其他DCP02系列设备电路或外部电源同步，并用于最小化系统噪声。看门狗电路检查振荡器电路的工作。通过将SYNC引脚拉低，可以禁用振荡器。当SYNC引脚变低时，输出引脚转变为三态模式，这在2μs内发生。4热停堆DCP02系列设备由热停堆电路保护。如果芯片上温度升高到150°C以上，设备将关闭。一旦温度降至150°C以下，即可恢复正常运行。5同步如果船上需要多个DC/DC转换器，可能会产生拍频和其他电气干扰。这种干扰是因为DC/DC转换器之间的开关频率变化很小。
输入电容器
2串联连接DCP02多个DCP02隔离的2W DC/DC转换器可以串联连接，以提供非标准电压轨。通过使用DCP02的电流隔离提供的浮动输出可以实现这种配置。将一个DCP02上的+VOUT连接到另一个DCPO2上的-VOUT 。如果SYNC引脚连接在一起，DCP02的自同步功能可防止电压轨上的拍频。DCP02的SYNC功能允许无需外部过滤即可轻松串联，从而将成本降至最低。双输出DCP02的输出也可以串联连接，以提供两倍的VOUT幅值 。例如，连接一个双输出、15-V、DCP022415D设备，以提供30-V导轨。所有5-V、12-V和15-V输入电压设计都需要2.2-μF的低ESR陶瓷输入电容器，而24V输入应用只需要0.47μF的输入电容。图9.串联连接的多个DCP02设备图10.串联连接的双输出设备 ， 提交文件反馈11个产品文件夹链接： 3并联连接DCP02如果一个DCP02的输出功率不足，可以并联多个DCP03的输出 （仅适用于单输出设备）。SYNC功能允许轻松同步，以防止电力轨拍频，而无需额外的滤波成本。所有5-V、12-V和15-V输入电压设计都需要2.2-μF、低ESR陶瓷输入电容器，而24V输入应用只需要0.47μF的输入电容。
Function description (continued)
2 Power level DCP02 series equipment adopts push-pull central tap topology. The DCP02 device switches at 400 kHz (800 kHz oscillator divided by 2). The 3 oscillator and the watchdog circuit board mounted 800 kHz oscillator generate the switching frequency through the 2 frequency divider circuit. The oscillator can be synchronized with other DCP02 series equipment circuits or external power supply, and used to minimize system noise. The watchdog circuit checks the operation of the oscillator circuit. The oscillator can be disabled by pulling the SYNC pin down. When the SYNC pin becomes low, the output pin changes to the tri state mode, which is at 2 μ Occurs within s. 4 Hot shutdown DCP02 series equipment is protected by hot shutdown circuit. If the temperature on the chip rises above 150 ° C, the device will shut down. Once the temperature drops below 150 ° C, normal operation can be resumed. 5 Synchronization If multiple DC/DC converters are required on board, beat frequency and other electrical interference may occur. This interference is due to the small change of switching frequency between DC/DC converters.
Input capacitor
2 Serial connection DCP02 Multiple DCP02 isolated 2W DC/DC converters can be connected in series to provide non-standard voltage rails. This configuration can be achieved by using the floating output provided by the current isolation of DCP02. Connect the+VOUT on one DCP02 to the - VOUT on the other DCPO2. If the SYNC pins are connected together, the self synchronization function of DCP02 can prevent the beat frequency on the voltage rail. The SYNC function of DCP02 allows easy concatenation without external filtering, thus minimizing costs. The output of dual output DCP02 can also be connected in series to provide twice the VOUT amplitude. For example, connect a dual output, 15-V, DCP022415D device to provide a 30-V rail. 2.2 is required for all 5-V, 12-V, and 15-V input voltage designs- μ F low ESR ceramic input capacitor, while only 0.47 is required for 24V input applications μ Input capacitance of F. Figure 9. Multiple DCP02 Devices Connected in Series Figure 10. Double output devices connected in series, 11 product folder links for file submission feedback: 3 Parallel connection DCP02 If the output power of one DCP02 is insufficient, multiple DCP03 outputs can be connected in parallel (only applicable to single output devices). The SYNC function allows easy synchronization to prevent power rail beats without additional filtering costs. 2.2 is required for all 5-V, 12-V, and 15-V input voltage designs- μ F. Low ESR ceramic input capacitor, while only 0.47 is required for 24V input applications μ Input capacitance of F.
