The datasheet for the LTC3803-5 has a "Dual Output Wide Input Range Converter" on the front page. Would this circuit work on the LTC3803-3. I need a 3V@150mA output and a 12V@10mA output. I don't see such a circuit on the LTC3803-3.
The converter based on LTC3803 enters the pulse-skip mode.
For Questions 2
it is possible to do so however it would be complex specially if you would target a fully isolated system
Mind looking at these controller as alternates ?
Hi ADI Experts
I am using LTC3803 for POE at application. but I have some inrush current issue that needs to be reduced.
since the SS is internally controlled by LTC3803, May I know if it is possible to build a external SS circuit on Ith pin?
Please consider LTC3803 datasheet, ITH pin
ITH/RUN (Pin 1): This pin performs two functions. It serves as the error amplifi er compensation point as well as the run/shutdown control input. Nominal voltage range is 0.7V to 1.9V. Forcing this pin…
Hi Victor, thanks for the response. I’ve mostly just started the design, so specs are a bit fluid at the moment.
For the APD, I’ll need fairly low ripple… I’m thinking less than 100mV, but I’m not really sure. I’ve been looking at a different flyback…
can you suggest any way to produce +-5 from +5.I need it for one 4ch differential signal summer op-amp plus salen-key filter op-amp.
Is there any DC/DC converter or something in ADI that doing this?
Therse is LTspice file present for this LT1761ES5-5 but it not compatible with TI-TINA simulator.
Please help me out by providing a SPICE file for this part so that I can import it to other tools as well.
So I spoke to the designer and I believe the model you provided in your thread above is accurate for SDA in that there are protection diodes in the SDA pad for when the device is to be a SPI part. The problem is that POWER must be applied for…
In typical application, 1k resistor is connected between HVPR(pin 7) and OUT(pin 13).If high voltage is
present, the HVPR goes low( near to GND) and opens external p-fet to drive high voltage (vbat+0.3V/5V)
to OUT. At same time, ca 3...5 mA are going…