I am designing the ADM7172 into my system. I have a few questions about the Enable pin.
1) The EN pin appears to need a step input. Do I need to put a diode etc in order to create this step event or can I just use the setup I use in the attached picture.
2) Would you mind double checking that my math below is correct?
Vin = [(Ren1 /Ren2)*1.2]+1.2
Therefore with Ren1 = 130 kOhm and Ren2 = 47 kOhm then the ideal enable voltage will be set to 4.52 V correct?
Hysteresis = [(Ren1 +Ren2)/Ren1]*100mV
With Ren1 = 130 kOhm and Ren2 = 47 kOhm the hysteresis will equal to (1.36 * 100 mV) = 136 mV.
Therefore the actual enable voltage will be equal to 4.52V + 136 mV = 4.656 V
And the actual turn-off voltage will be equal to 4.52V - 136 mV = 4.384 V
3) One other unrelated question:
Can I cascade one ADM7172 into another ADM7172 in the manner shown in the picture above.
Thanks and Regards,