Part Number: LM3402 Other Parts Discussed in Thread: LM3409 Hi Team,
Customer want to confirm if we have a military grade ( military aircraft to be precise) for this device.
In the datasheet it mention about Military/Aerospace (page 4 of datasheet). Upon…
Part Number: LM3402LM3402 Applied schematic diagram（As shown in figure 1）
figure 1 schematic diagram
When DIM= 3.3v, the oscilloscope is used to measure the signals of SW, CS and A respectively：
Figure2 CS（red）and SW（yellow）
As shown in the figure…
Part Number: LM3402 Hi,
I'm considering using the LM3402 device. The specifications are as follows. The LED voltage is assumed to be 17.4V. Is it possible to output such a high voltage? (specification) VIN:24V VLED:17.4V (VF=2.9V*6) ILED:0.5A
Best regards…
Part Number: LM3402 Other Parts Discussed in Thread: TPS92200 Hi support team,
Can the LM3402 use the following LEDs in 2 series and 9 parallel? It drives 18 in total.
- LM3402 Vin: 8 ~ 36.5V - LM3402 Dimming signal: Duty 0~100％, 190Hz±20%, 7V or less…
Part Number: LM3402 I was using LM3402 to drive one 1W high power LED of 530nm, set current sensing resistor as 0.56 Ohm. Input a PWM dimming signal of 80kHz. Found some wave strange as attached using current probe on scope.
That seems current wave performed…
Part Number: LM3402 Hi,
I need to know the recommend PWM frequency range for brightness control of LM3402. Also will it be sufficient if we apply a 3.3V logic PWM signal?
Thanks
Sivaraj,
Part Number: LM3402 Other Parts Discussed in Thread: TPS92640 Hi Team,
My customer is looking for solution for adjustable current source, below is the requirements:
Channel: 2
Adjustable Current: 0A~2A
Maximum load: 25ohm
Ripple: Vrms<=10mV, Vpp<=100m…
Part Number: LM3402 Hello,
We plan to use the LM3402 and noticed that:
- the RON shall be tight to VIN through a resistor to set the ON time
- the absolute maximum voltage on RON input with respect to GND is 7V
- our VIN is higher than 7V
There is no…
Part Number: LM3402
We are using the LM3402 in a public transportation application where there are several (up to 40) LED strips, for internal lighting. We have been using them since 2012. However, recently the customer has decided to add tire inflation…
Hi Kaji,
Thanks for your understanding. I am back to office now.
This evaluation board is quite old so I need some time to figure out your question here. Actually I would recommend switch to the next generation of LM3404 / LM3402, which is TPS922053 . May…
