LED driver PT4115: how to avoid arc around IC pins?
Apr 29, 2017 · I built a LED driver with PT4115 IC. The board lighted LEDs up but sparks appeared around SW, VIN & GND pins after 10 seconds and the phenomenon didn't damage …
LED-driver board with WS2818/WS2811 and PT4115
The DIM pin of the PT4115 seems to be rather sensitive to over-voltage and ESD, so it is protected by an additional resistor and Z-diode. The three current sense resistors have certain …
Designing/chosing components for PT4115 led driver
Feb 14, 2018 · I've settled on the PT4115 driver, because I can find them dirt cheap on aliexpress. The circuit I'm using is the reference design in the datasheet, but I just want to …
PT4115 LED driver - Electrical Engineering Stack Exchange
Nov 21, 2016 · Excuse me if my question is too specific. I'm trying to get an LED driver using PT4115 work. I've spent hours but no success. I've created exactly the circuit depicted in the …
PT4115 PWM dimming flickering - Electrical Engineering Stack …
Nov 2, 2024 · The PT4115 uses the DIM pin in 2 ways: PWM with a logic high >2.5V and low <0.3V performs the duty cycle based dimming DC voltage between 0.5V and 2.5V sets a …
PT4115 Led diver | Page 2 | All About Circuits
Feb 1, 2014 · PT4115 Led diver Home. Forums. Hardware Design. General Electronics Chat . PT4115 Led diver. Thread ...
Pt4115 LED DRİVER - All About Circuits
Dec 19, 2019 · I want to provide DİM with LM555 for Pt4115.I built the curciut.Firstly I tried part LM555, it worked smoothly but when the circuit pt4115, leds started burning constant and …
ripple current - PT4115, where should I put output capacitor ...
Dec 31, 2019 · The PT4115E datasheet states: Peak to peak ripple current in the LED(s) can be reduced below 30% of the average current, if required, by adding a capacitor across the LED(s).
PT4115 Led diver - All About Circuits
Feb 1, 2014 · PT4115 Led diver Home. Forums. Hardware Design. General Electronics Chat . PT4115 Led diver. Thread ...
PT4115 LED driver - All About Circuits
Jul 4, 2019 · I bought a pt4115 led driver module from ebay to drive 3x 1w (300mA-350mA) led chips. I would like to reduce the current to a lower value so that the LED...