DATASHEET上有这样的叙述：
where CT is in Farads, and RT is in Ohms and tOSC is in
seconds. CT can range from 100pF to 880pF. Please
note that a large CT and a small RT combination will result
in extended fall times on the CT waveform. The increased
fall time will increase the SYNC pulse width,
hence limiting the maximum phase shift between OUTA,
OUTB and OUTC, OUTD outputs, which limits the maximum
duty cycle of the converter.
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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