Other Parts Discussed in Thread: TPS92411 Hi TI Experts:
Currently for the TPS92411, I only able to find the Dimmable AC Linear Floating Switch LED Driver Reference Design at TI website.
http://www.ti.com/tool/PMP6022
But the application that need to…
Hi there!
I've made a board very similar to the 120VAC EVM. It works fine, but the power factor is about 0.76, what looks quite low comparing to the datasheet. The main difference is that the LEDs forward voltage is about 22V@120mA (7x Cree Xlamp MX-6S…
Hi dear friends,
after solving a problem with the power factor what I saw is that the mosfet I was using (FCD4N60) that looks better than the one used in the EVB is overheating, in few minutes is reaching more than 120C at room temperature of 20C. The…
Other Parts Discussed in Thread: TPS92411 Hi, In the data sheet of this device and in one reference design using this same device, always 4 TPS92411 are shown. Can not this device be used for direct driving of LEDs , from an AC source with minimum number…
I have been working with the TPS92411 IC (SOT23-5). Based on my 25W prototype, I can tell you that the TPS92411 behave smoothly, barely hot at ~80% of the maximum power dissipation, but the MOSFET from the constant current regulator gets really hot, design…
Other Parts Discussed in Thread: TPS92411 , TPS92410 I received my TPS92411 EVM-001 today and have it hooked up to a generic triac dimmer. I notice that there seems to be some significant hysteresis between going up and going down in brightness. Going down…
Other Parts Discussed in Thread: TPS92411 I have an LED driver design challenge and need some further information. I need around 22 watts for a large volume cost-sensitive room fan lighting design.
I've gone over the TPS92411 data sheet and EVM manuals…
Other Parts Discussed in Thread: TPS92411EVM-002 On the TPS92411EVM, RSNS and RSET are shown to be 1/4W and 1/8W 1206 size resistors. I'm not understanding why these are required to be so large, and in a new design, we are wanting to use 0402 size for…
Other Parts Discussed in Thread: TPS92411 Hi,
I am working on an LED project and would like to use the TPS92411. Do you have any details on how to add the thermal protection to the ref-board schematic? This chip seem to have everything I need, except…
Other Parts Discussed in Thread: TPS92411 Hello, I am interested in using TI's TPS92411 and TPS9210 in a AC direct LED circuit using 240v and noticed the excel calculators would not allow the use of the higher wattages such as 600 watts. Thankyou