Tool/software:
Hi,
I designed a 2-channel LED driver, using TPS922052. It is supposed to control a LED panel, consisting of LED strings of different color temperature.
My driver is powered with 24v, the output is 12-21v (4 to 7 x 3v LED strings) at up to 1.8 amps. Check the attached schematic.
The driver works ok in PWM dimming mode, but doesn't work at all in analog mode (LEDs blink at approx 2Hz freq). Also in hybrid mode the driver stops working in analog range (over 12.5%).
Would you be so kind and take a look at my schematic?
