Forum Post: RE: PoE Selection
TPS23753A should be used with type 1 applications only (<13W input power at RJ45). TPS23756 is a type 2 PD + controller that can work with wide input range adapters and the TPS23756EVM can support...
View ArticleForum Post: RE: BQ27510 chemistry selection
Does the BQ27200 need this same test to be done on the cells?We have the battery packs ready using the BQ27200 chips and have calibration problems which I just found out that this has not been done...
View ArticleForum Post: BQ27200 Calibration
We are using the BQ27200 chip in our 1S2P Lithium Polymer battery pack.The BQ272X00-TESTER will work fine for testing the chip in the circuit.Can we also use it to calibrate the chip to our cells? is...
View ArticleForum Post: RE: J/K Selection Method for MOSFET Selection
Hi Anthony -Thant answers my questions, thank you.Enjoy the weekend!- Bill
View ArticleForum Post: RE: BQ20z75 BQEasy issues
I see, since without performing Programming Dataflash Image the BQEasy Setup step doesn't show a check mark, since I got stuck last time I get a little conscious about all the little details to get...
View ArticleForum Post: TPS2511 Current Limit
I have an application where I would like to provide at most 500mA of charge current to a USB device. The TPS25511 device cannot be forced into offering only SDP mode with a 500mA limit. There is an...
View ArticleForum Post: RE: Setting up Advanced bqMTester
PatYou can use the SMB command 46 to turn the CHG and DSG FETs on manually. SMB CMD 46, Word 06.RegardsTom
View ArticleForum Post: BQ27200 REGISTER DEFINITIONS
Hello,What are and how do Nominal Available Capacity (NAC) and Last Measured Discharge (LMD) relate? How does the RSOC (relative state of charge) factor in with the NAC and LMD? What are the...
View ArticleForum Post: RE: TPS54325 Odd Enable Reaction
I'll probably try some testing over the weekend but I'm hoping that's all it is.
View ArticleForum Post: BQ76PL536A Pull-ups / Pull-downs on SCLK_H and SDI_H?
Hello all,The datasheet for BQ76PL536A recommends using 100K pull-up resistors on the SDI_H and SCLK_H pins on the base IC:The pins of the base IC (only) in a stack should have the SCLK_H and SDI_H...
View ArticleForum Post: How to calibrate the board with BQ27520 sitting on it
Hi,I know how to calibrate BQ27520 using EVM. But to generate golden .DFI file, i need to calibrate my board & enter those values in the DataFlash screen while generating .DFI image. The problem is...
View ArticleForum Post: RE: LM5118
Hi Eric,I complete my layout that shared on previous post and share for you.Please check my layout and say the bugs.(Please visit the site to view this file)Thanks a lot.Regards, Saeid
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Forum Post: Layout design for LM5118
Hi Eric,I changed the position of my parts according to datasheet,your suggest and layout guidelines for switching power supplies.Please check my layout specially inductor position,Diodes position and...
View ArticleForum Post: RE: TPS40200 input voltage increase shutdown problem
Your schematic was a little hard to follow. Now i notice that the compensation values you have are directly copied from fig 31. That compensation may only work with the shown output filter. Also the...
View ArticleForum Post: BQ77910 NC PINS
I am using a BQ77910A but I do not understand how to connect the pin N° 30 , because this is NC and " do not connect" in the datasheet , but we can see on EVM board shématic a coonection to the...
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Forum Post: RE: Buck PSU - 10~32VIN with FSW = 600KHz (TPS54240 / TPS63020...
Hi.Here are another two doubts.1)When IC1 (TPS54240) is generating the 5V rail, there will be 5V at VOUT pin of IC3 (TPS63020).Under this situation, what happens if ENABLE pin of IC3 (TPS63020) is...
View ArticleForum Post: Need some clarification with buck regulators
I'm trying to figure out buck regulators and am having a little trouble. I've been reading app notes and data sheets for a while and now I'm just getting more confused. I'm looking at the MC34063A....
View ArticleForum Post: RE: LM22677 - two in parallel?
Hello,for myself I want to use 2 Lm3488, one to create +24V from 100V, the econd +5V from previous 24V.Can I synchronise them by joining sync pin, with a common resistor to ground?Thankyou for helpAlain
View ArticleForum Post: LiFePo4 pack more than 72V
Hello,I would like to use the bq34z100 but my pack size exeed the 60V given in the spec.Is there a way to still use the bq34z100, for example changing the divider, knowing the result will have to take...
View ArticleForum Post: SM3320-BATT-EV/NOPB-ND
i'm yet to purchase this board before that ill like to know few things...1. can this IC be complied in ccs?2. where do i find details other than datasheet and application note for this board?3. i been...
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