Forum Post: RE: BQ27510 - how to find out if the part has been programmed...
Michael,Thank you so much for responding, I appreciate it.OK, I can compare the gg files, but I need to actually query the part itself, using my firmware. This is to verify that the part has (or has...
View ArticleForum Post: RE: Impedance Track cell balancing issue
Are you saying that the voltage which the charger holds the pack at is not the termintaion voltage? How does this happen and what's the reasoning behind doing that?Bear in mind that when Qmax updates,...
View ArticleForum Post: RE: LM5070 PoE PD_3.3V schematic review?
Make sure the SMAJ58 TVS and 0.1uF cap are very close to TPS23xxx (or LM50xx per post title) Vdd and Vss pins and are connected with low inductance copper.
View ArticleForum Post: RE: How to get timer delay on UVLO event using LM5069-2?
Are you using the PGB signal to enable the dc/dc converter? This is a good method to ensure reliable startup.
View ArticleForum Post: RE: Problem in produccion with TPS23753 POE
We noticed that your symbol (schematic) for the flyback transformer has the "dots" in the wrong place for secondary, bias, and drive. But according to the Coilcraft DS your pin #;s seem correct for a...
View ArticleForum Post: RE: bq27510 Data Flash Read Problem
Stefani,I think you are right. Design Capacity can't be changed by writing commands. And the only way to change it by using BQEasy. I am using 2380 mAh and currently i have changed by BQEasy.And I have...
View ArticleForum Post: RE: BQ29200 - Cell Balancing Circuit
When using the bq20z45evm, is it possible to display the results on the software provided using MSP430F5659 instead of the EV2300? Is there also a method in which we can selectively pick the data to...
View ArticleForum Post: Led Driver using TPS92314
I got reference design PMP4347. In that Magnetic details are missing. Please provide it.Please help us the reference design for 42V, 450mA with all the details. Design should be primary side control.
View ArticleForum Post: RE: BQ25060
Thank you James,With the BQ25060 EVM I got a non 0V value at OUT pin even without connecting the battery,
View ArticleForum Post: RE: LMR62421 - Layout guidelines for WSON (NGG) package
From the LM2832 Data Sheet (attached) with regard to WSON - 6 package power pad:The PCB size, weight of copper used to route traces and ground plane, and number of layers within the PCB can greatly...
View ArticleForum Post: RE: BQ2084 unseal problem...!!!
hi im eddy and im trying to unseal bq2085 can someone send me the master password for this icplease I realy need help my email is : eddyperezv@hotmail.com
View ArticleForum Post: RE: Bq20z75
Hello If the code was been send to you..... are you able to send me the code too?my E-Mail: grosshgo@yahoo.deI have inbuild the BQ20Z75 and after i want to exchange the battery-pack..... i was not able...
View ArticleForum Post: RE: BQ77PL900 Shutdown
Be sure your discharge FET is turning off completely if you have the conventional circuit.There is a diode from CHG to PACK. See...
View ArticleForum Post: Three Phase ultra wide range Switching Power Supply for Energy meter
I need help in designing three phase ultra wide switching power supply for industrial enviroment with occasional loss of a phase or a neutral. I found one solution at powerint but it has very low...
View ArticleForum Post: RE: BQ77PL900 Shutdown
By the way... VGATE is a 9v charge pump driven by the uC. I believe it's what's providing the 0.3v feedback. I can shut it down, but I'm now curious if I'm using the gate driver in a way that...
View ArticleForum Post: UCD90160 - sequence off issue
Hi All,Need help.I am tring to prepare configuration file for the UCD90160 which has 4 rails sequenced on (from smallest to biggest voltage) and off in opposit order (from biggest to smallest...
View ArticleForum Post: BQ27410 SOC/RM values
Hello,Our device uses BQ27410 for measuring battery capacity. We've recently faced one issue: when battery is charging, sometimes BQ27410's SOC ("State of Charge") and RM ("Remaining Capacity") values...
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Forum Post: TPS65950 Input Voltage
Dear members I have a question about input voltage related to TPS65950. I think that 3.2V+/-100[mV] is only recommendation input voltage for Power On Pin (=A11Pin, PWRON) Is that correct? I am using...
View ArticleForum Post: RE: USB Charging Questions
Yes, TPS2546 is used at USB host as a universal charging port. But now, since you want to build a device, you would better to post it to batter management forum.
View ArticleForum Post: RE: bq34z100 FC flag (learning)
Tom,Now, I prepare the data for you. As I have a question.Can you explain the way to get ChemID match using the Mathcad program?Step 1 - .....Step 2 - .....and more....Thank you
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