Forum Post: RE: TPS22946 trip point hysteresis
I think its just a "hard limit" ie no hysteresis. If the OC condition persists, the switch shuts off. Note the wide variation (min to max) for the CL setting. This is not a precision current limit.
View ArticleForum Post: RE: Many mistakes on data sheet of LM2735-q1
Hello Bishnu,Thank you for your input. Many LMxxxx data sheets were updated recently to comply with TI formating conventions. Thank you for spotting some subtle errors that were missed. We will correct...
View ArticleForum Post: RE: Interfacing BQ24392 with BQ24075
answered in the other forum, thanx again!!
View ArticleForum Post: RE: BQ34Z100 and CHEM ID
The 2.22 version failed to work. I used an older version that is available on the TI website. My programmer was able to program the .ROM file, but the ChemID is not in there. When he added the...
View ArticleForum Post: RE: TPS5450 Ringing PH(Switching Node)
Thanks Anthony,First we tryed placing the series resistor with the boot capacitor but without success: this solution did not solve our problem.Then we followed your suggestions and added a Snubber...
View ArticleForum Post: bq20z65 cell balancing
Dear Sir,I am developing a battery pack - Li Ion 14V8 8800 mAh - which uses a bq20z65 gas gauge ic. Actually, I am updating the product from the bq2040.I understand the cell balancing function can...
View ArticleForum Post: RE: TPS40200 Locks up on start up
Nothing seems off looking through the schematic and the BOM. I did a quick check of stability using the TINA average model and there are no issues there.The next place to look is the layout of your...
View ArticleForum Post: RE: LMZ13608 vs LMZ13610 datasheet
Webench indicates that you are correct as well as the App. Drawing and Table on the LMZ13608 web page.
View ArticleForum Post: RE: TLC59116 Global Dimming (GRPPWM) problem
Hi Peter,Thanks for letting me know you got it working. What values did you use for the Mode settings (1 and 2)? I'm wondering if there is something in there which is different to what I had.At the...
View ArticleForum Post: RE: TPS54494 schematic review
Assuming this is for the HTSSOP package (not RSA), missing GND connection to Power Pad. Functionally this looks okay, but some component values, VIN, and IOUT requirements are missing, so really cannot...
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Forum Post: Grounding BQ34Z100
Hi!We are designing schematics with BQ34Z100 and have the following question:Could the BQ34Z100 ground be connected to PACK- instead of BAT- as drawn on Figure 7.bq34z100EVM-001 Schematic?Possible...
View ArticleForum Post: RE: TPS54020 schematic review
Functionally this looks okay, but some component values, VIN, and IOUT requirements are missing, so really cannot be evaluated. Suggest running Webench to verify design, although pcb layout is also...
View ArticleForum Post: TPS92314 application
Dear SirGood days,May we check if Tps92314 reference design PMP4347 can driver 42V/0.66A output?or if any suggest transform spec can advice us?...
View ArticleForum Post: RE: TPS74401 schematic review
For the RGW package, missing GND connection to Power Pad. Functionally this looks okay, but some component values, VIN, and IOUT requirements are missing, so really cannot be totally evaluated. Refer...
View ArticleForum Post: AC-DC
I am looking for a power supply, for our products, that can control the output voltage and current from zero(almost) to full range.Your chip UCD7242 the output is 18V/20A and can be controlled by...
View ArticleForum Post: TPS2540A - About an unused pin
My customer may not use the following pin.Please tell me the pin disposal method. <pin>・DM_OUT(2pin)・DP_OUT(3pin)・DM_IN(11pin)・DP_IN(10pin)
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Forum Post: RE: BQ25070DQCR lack of CV effect on LiPo reliability
Any data to support this on charging LiFePO4 and charging other Lithium ion cells is appreciated.Also noteworthy is the change in cycles x capacity of Lithium cells vs Depth of Discharge (DoD) vs...
View ArticleForum Post: RE: TPS2501 Rilim resistor is not functioning and power up...
The location of the AUX bypass capacitor (and correction of pin swap) will probably clear up the Ilim issue. However you should hack this change into the existing board and validate. The supply...
View ArticleForum Post: RE: could we short output of 2 LDO's to get the more current...
You could short the ouputs together with no harm, but it's unlikey that the load current will be shared evenly between the two LDO's. The LDO with the higher ouput voltage (even by a few milli-volts)...
View ArticleForum Post: RE: BQ20z75, CHG and PCHG FET are off
Hi Ramiro,Such error states is not a common issue. Can you extract a .senc file from an actual device that failed and was not able to be recovered? thanksOnyx
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