Part Number: LM3407 Hi Team,
Our customer would like to use LM3407 at the following conditions so they have to use RISNS =around 2.475ohm.
Can I use this RISNS?
If no, could you please let us know the maximum value of RISNS?
[Conditions]
-VIN=10V to…
Other Parts Discussed in Thread: LM3407 Hi Team –
Posting this on customer behalf.
Currently doing a design using the LM3407.
Vin = 24V
VLED drop = 6V (6 series, 5 parallel strings, 1V drop across each LED)
L1 = 68uH
Rsense = 0.82
Based on Rsense…
There is a contradiction between the datasheet and the design calculator (the excel sheet provided by TI to calculate the inductor):
http://www.ti.com/tool/lm3407design-calc
This is from the LM3407-excel sheet:
Notice the different position of the inductor…
Other Parts Discussed in Thread: LM3407 Hello,
I’m trying to dimension the inductor for the LCD backlight converter LM3407.
My input voltage can vary between 12V and 24V. The output voltage should be 10V (3 LEDs with *3,3V typ.), max continuous output…
Other Parts Discussed in Thread: LM3407 Hi
I hope somebody can help me, I have used an LM3407 to drive an LED module, I have a 6 LED version and a 3 LED version ( same PCB with links)
These are both powered from a 30VDC supply and multiple LED modules can…
Part Number: LM3409 Other Parts Discussed in Thread: LM3407 , LM3402
Hi all,
I'm using LM3409 to drive 3 LEDs in 8.7V at 400mA.
the driving schematics I was refering to the one in datasheet (Driving pin is EN), It's basically identical except the…
Other Parts Discussed in Thread: LM3407 I am trying to implement a LED driver using LM3407 IC to drive three 1 Watt LEDs connected in series(350mA). The circuit is not performing the buck operation as the input power is reflected at the output across the…
Other Parts Discussed in Thread: LM3407 , LM3414 , PMP8943 , TPS40211 I am trying to implement a LED driver using LM3407 IC to drive three 1 Watt LEDs connected in series(350mA). The circuit is not performing the buck operation as the input power is reflected…
Other Parts Discussed in Thread: LM3407 Hello, we are using the LM3407 LED driver in a LCD(TV also with analog tuner) application. The chip and the peripheral devices are plaeced on the motherboard of our LCD. The LEDs are placed on a separate PCB which…
Part Number: LM3404 Other Parts Discussed in Thread: LM3407 , LM3401 , Hi,
Customer want to know if there is any available calculation tool for this IC that they can used?
I can only find the following design calculation for LM3401 and LM3407
https://www…