Other Parts Discussed in Thread: LM61460
Hi Team,
I am reading D/S and I am confused by VIN UVLO functionalities and VCC UVLO threshold. Could you please share your comments below respectively? Thank you.
1.D/S says VIN has 3.95V for start-up and it needs at least 3.0V once operating. Is there any UVLO protection relating to VIN pin individually? This means, if I have VBIAS=5V, EN=HIGH however VIN down below 3.0V. Will device stop switching and enter shut-down? I am kinda wondering maybe VIN pin does not have UVLO. Its UVLO relies to VCC UVLO.
2.VCC UVLO. Is 3.6V and 1.1V relating to INPUT VOLTAGE of VCC, or VCC's output voltage? If so, what does table 9-1 mean? It says VCC<VCC_UVLO-VCC_UVLO_HYST. So it means VCC's output voltage is below its input voltage UVLO?
-A