Part Number: UC3845A Other Parts Discussed in Thread: UC3845 , UC2845 I have query regarding short circuit protection from UC3845 or UC2845 controller. What we observed that peak current went high and did not get burst/hiccup mode operation. As per our…
Hi Manuel,
Thank you very much. In my case I had no resistor in series with the capacitor between RT/CT and I_SNS pins and when I removed it all became reasonable: frequency is much closer to the expected value and most importantly the spikes on turn…
Part Number: UC3845A I am looking for reliability data for the UCx84x PWM controller. Can you please provide the common failure modes for this controller?
Part Number: UC3845A Dear Sir,
I design a buck converter Input-40-90V, Output 12V,10A.
I used a Input capacitor 220uF 100V , I face a problem during testing at Input-84V, Output 12V,10A. that the input capacitor is degraded.
why this happned,
pls suggest…
Part Number: UC3845A Other Parts Discussed in Thread: UC3845 , TL2842
Hi,
We are designing a Buck converter
output : 12V 10A,
Input : 36V -72Vdc
Can you please provide any buck converter reference deign for UC3845 IC.
Regards,
Sathishkumar V.
Part Number: UC3845A Hi there,
In various application notes I come across 2 formulae to calculate the primary inductance of a flyback transformer.. These 2 formula are given below :-
a) Lp = (Vin min² x Dmax² x effeciency) / (2 x Freq x Po). …
Part Number: UC3845A Is there a version of data sheet or application note for both UC3845AN and UCC38C45P that provide details on forward converter design?
Thank you for helping me.
Part Number: UC3845A Noted that free-air operating temperature range has been reduced from -40°C to 85°C, and is now 0°C to 70°C. Need to know basis of this specification change. For future products, is this part number no longer recommended…
