LED Driver ICs Forum Discussions

Hello,

I am developing  a 300W LED Driver 90V 3.25A.

Facing issue with following things

1. output voltage range requirement is 50-90V, currently it is 78-90V.

2. Output current keeps increasing after the load in CC mode like current starts from 3.15A and rises to 3.45A

3. while doing pilot lot many drivers found not working. IC is not getting start.

Hi all, Vcc and BO is getting 13.5V and 1.5V respectively for ICL5102 IC. But IC is not generating Pulses for PFC boost MOSFET. But I got the 24V Constant desired output voltage. It went off at 260V AC input. But after that Iam facing the above problem. I have changed the ICs three times, but PFC stage is not giving bus voltage >410V. Please suggest me to get the IC work.

Hello every one

My question is, will ICL5102 based power supply circuit, will support 180 Watt, 280 VDC output??
If so, is there any design tool configurator to use??

Hello everyone

I'm working on Led power supply take input 120-270 VAC, and output 120-277VDC, 600mA-1200mA and 180 Watt.
I'm using XDPL8221 in my hardware desing, but I'm not sure that it can be used for this power range, Am I right?
Is there any tool to help with design parameters??

Hi

I'm not sure I'm in the right forum here.

I am looking for a step up flyback controller with an input voltage of 12 - 30V DC and with an enable so I can use a microcontroller to toggle it on/off. I looked at the XDPL8210 which looked perfect except for the supply requirements. Is there another controller you can recommend?

Hi everyone,

For a project involving the stimulation of live-cells we are in need of a LED driver with a very low output current ripple.
Other parameters such as power loss are not as important
Furthermore the IC schould support:
- Vin max >30V
- Iout max >1A (in total. the number of channels doesnt matter although less channels is preferred)

Thank you all for you support.
All the best!
Jordi

The situation is as follows. At the input, we have a 12V power supply that has over voltage protection (OVP). A battery is connected to the output, which we charge by setting the output voltage to 13V. The problem occurs when DC/DC (TLD5190 in voltage regulator mode) works and on the output we have 13V  and than we connect a full battery, which has a voltage of, say, 13.5V, i.e. a voltage that is higher than the voltage, that is on the DC/DC output.
Then a higher voltage of 15-18V appears at the INPUT, which activates the OVP of the power supply and turns it off.

What can we do to prevent this "kick back"?

Hi, I am trying to understand and design a LCC Converter

I read lots of documents about LLC and read "Design of efficient LCC based on ICL5102/HV combo controller IC" for LCC, I think I have a decent amoun of knowledge about the working principles but I have no idea about the selection of components, while there are lots of design guides about LLC I could not find a good design guide for LCC converter and the one infineon provides is using a tool which is kind of black box. And the tool does not let me go to the Vout of 2000 V (which I needed it in my project). Is there a design guide (application note) for a LCC converter ? Or do you suggest anything to me ?

Thanks in advance