Part Number: LM3464A Other Parts Discussed in Thread: LM3463 , LM3464 Hi, I am going to use this part for only one LED string with 22 LEDs in series with maximum 82.5V, by respect the max input voltage 95V.
I have some questions: 1. If I only use one channel…
Part Number: LM3464A Tool/software: WEBENCH Design Tools
My customer has a question about LM3464A,Below is the question from the customer in verbatim:
“ I am interested in finding out some information regarding the thermal foldback feature. On page 17…
Part Number: LM3464A Other Parts Discussed in Thread: UCC28740 , LM3464 Tool/software: WEBENCH® Design Tools To whom it may concern, I am using the LM3464A LED driver to power a series of LED. I am utilizing all 4 output of the driver. I am trying to design…
Part Number: LM3464A Other Parts Discussed in Thread: LM3464 , TPS92640 , LM3409 Hi.
please request my customer's circuit reviews.
He is using the LM3464A to have 3A current in each LED channel
Please see the attached file.
thanks.
regards,
I figured it out!
From page 6 from AN-2071:
Setting of VDHC_READY When VRAIL reaches VDHC_READY, the voltage at the VLedFB pin of the LM3464A equals 2.5V. As the voltage at the VLedFB pin reaches 2.5V, the LM3464A performs a test for no long than 400uS to…
Other Parts Discussed in Thread: LM3464 I am using the LM3464 Eval board. I have it set up for 800ma channels, VIN=48VDC. I am using the DIM input to strobe the LEDs, completely off/on operation. The chip gets occasional faults, resulting in channels being…
Other Parts Discussed in Thread: LM3464A Hi,
LM3464A are 4CH LED driver. do you know how to disable the unused channels(Removing unused channels from contrl loop) if there are only 2 channels used?
can you explain the circuit configuration for it?
Thanks…
Hello Steven,
I am moving this to the LED group that supports this part. I used to support this part in the past. The power supply portion is assumed to be an isolated DC output with a reference that can be connected to. It isn't covered as part of the…
