Part Number: UCC25660 I have Design 1kw charger 54V and 18A during Startup once 54v reach in output then Switching stop and after that when we check controller status its Lo pin Short with Gnd
Part Number: UCC25660 Hi Teams,
Can UCC25660 support to be designed for 40Vinput 24Voutput 400W LLC DCDC Converter?
If not, why?
I have looked through the datasheet, but found nothing to stop this. Could you help to share your professional inputs?
BRs…
Hi John, customer is looking for any training material on the UCC25660. Is there anything? Can you list me the 9 ref designs? May be that will also help the customer.
Regards, Holger
Part Number: UCC25660 Any guidance on programming TSET?
Datasheet gives minimum frequency for IPCC operation but does not mention issues with setting it too low. For example, if maximum frequency is 600 kHz what are the ramifications of TSET option #1…
Part Number: UCC25660 Can the UCC25660 be used in a LCC operation application and do you have any thoughts/guidance (or reference design). Initial thoughts are that because it uses Input Power Proportional Control (IPPC), that it should be do-able, unless…
Part Number: UCC25660 The TSET table on page 22 of the datasheet does not match the Excel design calculator.
For example:
1) The datasheet table row for TSET #10 (3.5V OCP and 214 ns) shows a divider voltage of 1.416V. However, the Excel calculator for…
Part Number: UCC25660 Hello guys,
One of my customers is looking for a LLC controller device with PFC function.
They want to build up like the following power supply.
Vin: 84V ~ 264V -> PFC -> 500V -> LLC -> 30V ~ 60V (Total output power is 1kW).…
Hi Marsh,
LLC resonant converters are usually better efficient when the input voltages are high (~400V). So, I would think you can use different power topology for this application. So, please post a new thread for other controller recommendations.
R…
Hello,
For 95% efficiency and 300 W the LLC using the UCC25660x would be the most economical solution to meet your design requirements.
This is due to the ZVS on the primary and ZCS/near ZCS on the secondary of the converter.
The UCC25660x product page…