Part Number:UC2909-EP
Hello， I have some questions about UC2909-EP :
1) The fist problem is about –3.9-mV/°C thermistor linearization circuit, I didn't know how it works, I didn't understand the reasons why it can control the output voltage with –3.9-mV/°C, I think it just compared between the Vref and the feetback voltage ,but not the output voltage.
And if I want adjust the output voltage with -4mV/°C,how can I do it?
2）On Page14 and Page15 in U-155, Ifbmax is 150uA, when I use UCD2909-EP, how much current should be used ,I didn't understand what does it mean, and how can I make sure the Ifbmax when I use the UCD2909-EP?
3）On P14 in U-155，why the gain "A" of optional differential voltage sense must be 1/N<A<((Vz-3)/Vbatmax) ?
4）When uc2909-ep's power voltage is +15V，how much value is the PIN of VA-'s maximum input voltage？
Please forgive me for my limited English.
Looking forward to your reply，thinks very much.