Chiajung Hsu
TI does not provide a driver for the TPS40400. The TPS40400 uses standard PMBus commands to implement output voltage control, so standardized firmware designed to use a processors I2C Master peripheral to send VOUT_COMMAND values to the…
Boris Yost
The current and power dissipation for the BST pin is quite low. Calculating it requires knowing a number of factors that are generally not published in the device datasheets, like the high-side MOSFET gate charge and the internal MOSFET…
Part Number: TPS546D24AEVM I understand the process of converting TPS546D24AEVM from 2 phase to single phase.
What changes has to be made to the output decoupling capacitors and the compensation circuitry with respect to 1 phase vs 2phase.
Andrei Maiorescu
The TPS549D22 power IC has some limitations to its internal reference voltage that make generating a 1.25V and 3.3V output from the same physical schematic without changing external components challenging. The internal reference voltage…
FAROOQ BHATTI
A few things that I noticed about your schematic:
1) You do not have separate nets for AGND and PGND. While AGND and PGND need to be connected at the layout under the IC between the AGND pin pad and the exposed pad (EP) providing…
Part Number: TPS546D24S Tool/software: Hello,
Is it possible to adjust TPS546D24S output voltage on-the-fly using external DAC and not via PMBUS?
Thanks,
Itay
Hi Louis,
I took a 2-PH TOS546D24A EVM onto the bench and ran it at 0.5Vout and 80A. At 80A of current draw, I confirmed it on the monitor window of the Fusion software. Attached are the pertinent files for the Fusion GUI:
Fullscreen
TPS546D24A…
Part Number: TPS546B24A Hello,
I'm using PSpice to simulate switcher TPS546B24A. But I faced ERROR(ORPSIM-15141): Less than 2 connections at node M_UN0006 as below picture. Meanwhile, I can't find the node in error description via "Ctrl+F" search tools…
