Hello, I am going to use LTC3805-5 as the controlling circuit of a flyback converter.
Firstly, I built a small circuit to get some knowledge of the chip. The schematic is shown below:
The components in the shadow are not installed on the pcb. It is…
We will also recommend that you consider LTC3805 as this have good features too. In terms of support including transformer selection, please contact local ADI field application engineer who can guide you closely with your design.
I'm using a LTC3805 in a sepic design and I have some questions regarding the sync input.
I have a Vin of 19V to 24V, Vout of 20V and -20V at Iout(max) of 260mA and -200mA. I use two coupled inductors of 330uH and the sense resistor…
The restart may happen due to noise on OC pin or due to under voltage lockout on Vcc pin.
Increasing the 5V input to 5.5V-6V level can rule out the UVLO on Vcc pin.
Adding a decoupling cap close to OC and GND pins will indicate if the problem is due…