Hi Niklas：
We disconnected LM3478 and TPS23861, and separately tested the LM3478 booster circuit and TPS23861 POE circuit. The test results are as follows 1. LM3478 test NG; 2. TPS23861 POE circuit test OK: The input power of TPS23861 adopts the regulated…
Part Number: LM3478 Tool/software: Hi,
We use the LM3478MMX/NOPB for the buck circuit from 12VDC to 58VDC, and power provide to POE PSE TPS23681PWR, and this circuit is abnormal;
Plesae help to review our schematic diagram and advise if there are any…
Part Number: LM3478 Tool/software:
I applied to install the software PSpice for TI; However, in the software, I could not find the "menu" demonstrated in the tutorial of TI's official website, nor the LM3478 PSpice model, as shown in the following…
Part Number: LM3478 Tool/software: Hi, dear.
Sorry for troubling you.
I design LM3478 as a boost controller based on Webench tool.
My initial goal is that it needs to operate in range of Vin = 6 - 23VDC and Vout=24VDC at about 2A currents to charge some…
Hi Conor,
Yes, your understanding is correct.
I double checked with other controllers that have the same regulation as LM3478. Here is the current sensing structure of LM5155:
Here the arrow is in the other direction, just as you initially pointed out…
Part Number: LM3478 I have successful past designs with the LM3478 and would like to stay with the part. I recently have an application where it would be useful to convert about 45 watts of power (12Vin nominal to 24Vout nominal) and Webench does not…
Part Number: LM3478 Other Parts Discussed in Thread: LM5156
Greetings, I hope somebody could help me. I'm trying to design a SEPIC converter based on LM3478, with input voltage range 12-36V, and output 24V 2A. I'm calculated all relevant values of components…
Part Number: LM3478 Other Parts Discussed in Thread: LM3488 , , LM5155 Hi,
Are there any ICs that are compatible with the following packages and can be replaced? ・LM3478MMX/NOPB ・LM3478MM/NOPB
As far as I researched, LM3488 seems to be the case. The only…
Part Number: LM3478Q-Q1 Other Parts Discussed in Thread: LM3478 Hello, good day. Our customer have a problem :
Does the lm3478 chip control the voltage loop and current loop together? For example, in this picture, during normal operation, if the input…
Part Number: LM3478 While playing around with design parameters for a LM3478 design, I noticed that Webench's SEPIC schematic and Boost schematic differ in the placement of Cfilt for monitoring Vsense at the Isense pin.
Boost:
SEPIC:
Note that…
