Part Number: TPS2377-1
Hi,
We have designed PoE powered device using TPS2377-1. The device will operate on 3.3V/200mA(max). since the device is low powered and portable, we did not use any magnetics and isolation transformer.
Request you to review…
Part Number: TPS2377-1 Dear sir,
Can You arrange the samples for TPS2377-1.
We Ordered the IC's, it will not receive on the expecting time. But we need to show the demo urgently. we need to test the circuit. We don't have IC now. So please arrange…
Part Number: TPS2377-1 Dear sir/Madam,
I need to design the PoE PD module for the 12W application. I did the design using TPS2377-1.
I have doubt about the Mode A and mode B types of transmission in PoE communication.
How do I make the circuit compatible…
Part Number: TPS2377-1 Dear Sir,
I test the PoE PD circuit built by using TPS2377-1. but if I connect with PSE device, the power LED of the PSE device (PoE Injector) was blinking. I attach the Schematic circuit also.
Part Number: TPS2378 Other Parts Discussed in Thread: TPS2375 , TPS2377 , TPS2376 The operating voltage for type 1 PD is 37V ~ 57V, but TPS2378 has a rising UVLO at 38.1V. Also the electrical specs from datasheet is under VDD 40V~57V. So does this chip…
Matt,
I assume that you're referring to equation 2 on page 16 of the TPS2377 datasheet. That's actually an equation for the maximum cap not recommended cap. For your power level you will usually wind up with a much smaller capacitor than 470uF. Note…
Hello,
The UCC3806 is a dual output controller though it can be used in a flyback where only one of the outputs are used to drive the switch it might be better to choose a single output controller. Look at page 46 of the attached under General Purpose…
Siyu,
I think the toggle flip-flop in the block diagram on page one of the spec should have let you know that the max you will get with this device is 50% duty.
Go to page 43 and 44 of the attached and select a more suitable part.
Peter,
i am enclosing the Power Management Guide for 2011. The section you will be interested in starts on page 43 and actual devices listed on page 46, With the minimum information you have given me I would expect that you will want something like…
