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LSF0102: LSF0102DCURの電源電圧について

Koma Atsumi
Prodigy 20 points
Part Number: LSF0102


Tool/software:

LSF0102DCURの電源電圧について、データシート上ではVref_A < Vref_Bとすべきと記載があるところを、誤って基板上でVref_A > Vref_Bとしてしまったのですが、こちらを正常に動作させるためには改修が必要でしょうか。

  • 0
    Guru 318050 points

    The device is symmetrical; it does not matter which side has a higher voltage. But the connection to EN and the 200 kΩ resistor must be on the side that has the higher voltage.

    If EN is connected to the lower voltage, then it will still work, but switching is somewhat slower, and output voltages are clamped to a voltage about 0.6 V below Vref_B. For I²C, this would not matter.