Hi,
The circuit at top does not show how you bias the IC, so it is not a complete circuit and the problem part not showing so please provide the complete circuit.
The slope compensation for UC3844A is not needed in nature.
You need to provide the VCC…
Part Number: UC3844A Other Parts Discussed in Thread: UC3845 , UC3844 , UC3843 , UC3842 Hi to all,
I am designing a two stages buck converter with UC3844A. The two stages are equal and their outputs are connected together.
I have an external SYNC signal applied…
Part Number: UC3844A Other Parts Discussed in Thread: UC1844A-EP Hello,
first I wrote to the support via email and they wrote me that I should ask here for the problem.
We have big problems with the UC3844AD8. The component fails after about 1 year. …
Part Number: UC1844A Other Parts Discussed in Thread: UC3844A Hi,
I am using UC3844A IC for my Flyback simulation.
Simulation input conditions, Frequency 200KHz, Output voltage is 20V. and Input current is 0.55A.
Facing following Issues 1. Discontinuous…
Part Number: UC2845A Other Parts Discussed in Thread: UC2843A , UC1844A , UC3844A , UC1845A , UC3845A , UC3842A , UC2842A , UC1842A , UC2844A , UC3843A , UC1843A Hi, Team.
Could you tell me how much temperature how much temperature can UC2845A Junction be withstanded…
HI,
Please note that Junction temperature alert is for U1 (UC3844) not for the Mosfet. Please see requried detail as below: 1) The power topology you are using. --> Based on my input webench suggested flyback. Please confirm is this OK? 2) The MOSFETs…
Part Number: UC2844A Other Parts Discussed in Thread: UC3844A On the TI document "uc3844a.pdf" title "UCx84xA Current-Mode PWM Controller", Figure 8 have fsw=1.72/(Rt/Ct). Is this correct?