Part Number: LM3445 Tool/software: Steven Li:
I have still not been able to contact you regarding a challenging problem that I have in applying the LM3445 in my products..
I have sent a couple of friend requests and have been unsuccessful so far.…
Part Number: LM3445 Tool/software: Steven Li:
I have sent several replies to your generous offer to consider my problem with the LM3445.
My first reply included my schematic and BOM along with a summary of my analysis so far.
That reply was rejected…
Part Number: LM3445 Tool/software: My application using the LM3445 is a buck controller driving a 40V LED array.
My circuit is very similar to the one shown in T.I. application note and data sheet: SNVS570L –JANUARY 2009–REVISED MAY 2013.
The circuit…
Part Number: LM3445 Tool/software: Dear
After the input voltage is powered off, the pin voltage of LM3445 COFF will rise to more than 9V.
SHD0251L-305S.pdf
Part Number: LM3445 Tool/software: The application note from the datasheet was used for design, following the calculations, a circuit was designed for a 69V, 660mA LED matrix, with a power supply of 85-135Vac, with a switching frequency of 350kHz, however…
Part Number: LM3445 Tool/software: Dear
At present, during the debugging of the LM3445 scheme's 25W thyristor dimming power supply (input 85-115Vac, output 28-40V 600mA), it was found that there is a significant difference in output current under different…
Part Number: LM3445 Tool/software: Led details:
Led Chip forward Voltage: 5.6 V
Led Chip forward Current: 150 mA
İnput Voltage: 220 VAC
Total Led power will be 100 Watt. It should be dimming with PWM.
For this system, is your LM3445 product…
Part Number: LM3445 When applied as outlined in the LM3445 Data Sheet and Application Note, the resulting circuit is susceptible to failures of the main switching NFET.
The FET becomes shorted at all terminals and the obviously high-voltage event that…
Part Number: LM3445 Good day,
I need to design a TRIAC dimmable device with 10 LEDs (3.2V @ 20mA). I was thinking of using the LM3445 since this seems to be a good option.
The requirements of the end product are:
compatible with UK-US-EU mains…
Part Number: LM3445 Hi,
I find there is a minimum on-time(about 200ns) for the LM3445.Min Ton matter means we have worse line regulation spec when TRIAC level is min.
Because Min ton is fix,LED voltage tolerance also effect min Iout.How to achieve…
