Hello,
If you are at full load and the converter is bursting. More than likely you are hitting an over current protection mode fault reset.
I would check your ISNS divider to make sure it is setup correctly. The ISNS resistor might be too large for your…
Part Number: UCC256404 Hi,
There is no Pspice model for UCC256404 on the website, is there one which I can use?
If not, then how can I import Simplis model into Pspice?
Thank you.
Hello,
Thanks for the reply.
We are using less Qg and Capacitance Mosfet only comparing to TIDA-010081 design LLC Mosfet. Bootstrap circuit is only for high side Mosfet driving but why the low side Mosfet fails.
TK190E65Z - Mosfet which we are used and …
Hello - I've been having a bit of success with this design, but also some ongoing problems. I found a number of manufacturing issues which were preventing it from powering up successfully, and I think I have now eradicated all of those.
I also completely…
Part Number: UCC256404 Other Parts Discussed in Thread: UCC28180 , , UCC24624 We are currently working on 750W desing in which we have use UCC28180+UCC256404+UCC24624 IC combination.
In which at initial start up there is a current spike in resonant as you…
Part Number: UCC256404 Hello Team,
How to arrest the RVCC noise in the UCC256404? Noise starts whenever the switching starts Check out the below captured waveforms and circuit.
VCC: 18V
RVCC: 13V
LO Output
HO Output:
Kind Regards,
Nishanth M
Part Number: UCC256404 We are designing AC-DC converter using UCC256404. The required full load current is 10amps. There is issue observed at sudden load current from 2A to 0.5A, i.e. in lighter load condition, set using digital electronic load. The input…
Part Number: UCC256404 Other Parts Discussed in Thread: UCC28064 , Hi, I have a dual UCC28064 PFC stage creating 400Vdc at 1.1kW. I have a few issues with that, but subject of another thread.
This stage feeds into a UCC256404 LLC stage, intented to switch…
Part Number: UCC256404 Other Parts Discussed in Thread: UCD3138 , UCD3138A , PMP21842 , UCC25660 Hi TI Team, I am going to design 3.3KW DC-DC power supply with following specification. Pout - 3.3KW Vout - 54V - 96V_dc Iout max - 61A_dc Vin - 390V - 410V_dc Topology…
Part Number: UCC256404 Hast this part ever been tested with a Totem Pole PFC front end?
The reason I am asking is that we are working on a TPPFC + LLC design. When the Slow leg MOSFETs swap operation the transition from 0 to 400V or vice versa. When you…