UPC1935 查看數據表（PDF） - NEC => Renesas Technology

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UPC1935

DC-DC CONVERTER CONTROL IC

NEC => Renesas Technology 

µ PC1935

3.6 Maximum Duty Limit

Channel 1 is switched internally between Soft Start and Timer Latch. For this reason, the DTC voltage is fixed internally,

and the maximum duty is limited to 85%.

The DTC voltage for channel 2 and channel 3 can be set externally, so the maximum duty is not limited.

3.7 Notes on Actual Pattern Wiring

When actually carrying out the pattern wiring, it is necessary to separate control-related grounds and power-related

grounds, and make sure that they do not share impedances as far as possible. In addition, make sure the high-frequency

impedance is lowered using capacitors and other components to prevent noise input to the VREF pin.

20

Data Sheet G13418EJ3V0DS00

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