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DATASHEET上有这样的叙述：<br />where CT is in Farads, and RT is in Ohms and tOSC is in<br />seconds. CT can range from 100pF to 880pF. Please<br />note that a large CT and a small RT combination will result<br />in extended fall times on the CT waveform. The increased<br />fall time will increase the SYNC pulse width,<br />hence limiting the maximum phase shift between OUTA,<br />OUTB and OUTC, OUTD outputs, which limits the maximum<br />duty cycle of the converter.<br /><br />是不是就意味着CT的值不能大于880pF,工作频率不能太低，我想用它工作在15~50KHZ现实吗？ |
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楼主
