Part Number: UC2843 Hi Team,
Customer met a problem of UC2843 with >80degC heat during 30min, which is really close to our spec of 85degC.
The output current of the primary side is only 0.08A. I attached the schematic. Could you please give some suggestions…
Part Number: UC2843 Hi Team, i got this request from a customer:
I’m trying to do is to use two independent parallel circuits supplied from the same 15V source, but with common RC network to hopefully synchronize their operation.
The specification…
Part Number: UC2843A-Q1 Other Parts Discussed in Thread: UCC2897A Hi ,
Can UC 2843 used for below application ?Is it right choice if not please suggest suitable alternate .
Fly back isolated converter
Input DC =25V ~ 100V
Output DC = 14V /10A…
Part Number: UC2843
I use UC2843 desige the BOOST application, i want to limit the Max duty cycle at 80%, according the datasheet'figure7 ,the RT need to choose about 1.8k.
But at the PIN functions table recommends like that :
So if must need…
Part Number: UC2843 Hello everyone ;
I want to design a flyback converter with input 10-18v DC and isolated outputs +6v 200mA , -6V 200mA and 4.3 with 250mA . I could not find any application note to help in in calculation for multi output. also webench…
Part Number: UC2843 Hello,
I m using UC2843 as PWM generator for PWM is from 0% to 100% duty cycle.
I assumed there is following relation between input voltage at I-sense and Output duty cycle
Input voltage at pin3 of UC2843D8
Output Duty…
Part Number: UC2843 Hello Team,
may I kindly ask you to clarify what this Tj=Ta means, please?
On one side the UC2843 is specified for ambient temp range from -40°C to 85°C, correct?
But in my understanding below requirement can only be achieved…
Part Number: UC2843 Hi team,
Could you please check what is the maximum OUTPUT pin high-level output voltage and what is the absolute maximum voltage rating for OUTPUT? Datasheet only specified the typical High-level output voltage?
Many thanks…
Part Number: UC2843 Hi Team,
Here are two questions when use UC2843 in flyback topology. 48V ( 34V-60V) input, 9.5V/2A output.
1. we found when Ton is large, there are two steps on OUT pin. Please kindly check the reason and if the 2rd step will drops…
