Forum Post: RE: Reliability Report for PTH05000W and PTH04T220W
Hello Tom,My email address is dannycheng80@gmail.comIf it is possible, can you also send me the reliability report for the C66 DSP (TMX320C6672CYP and TMS320C6678CYPA)? Thank you.Regards,Danny
View ArticleForum Post: RE: TPS2543 - Can TPS2543 support iPad(2.4A)?
As you talked, iPad(2.4A) is new divider mode for iPad, DP/DM =2.7V/2.7V, different from 2.1A/10.5W, DP/DM=2.7V/2.0V.TPS2543/6 support 2.1A, doesn’t support 2.4A.
View ArticleForum Post: RE: bq20Z45-R1 DSC Fet Drive Problems
Mark,The DSG FET charge pump is powered by the PACK pin. The PACK pin should pull down when a load is applied and introduce enough Vgs across the FET to start the charge pump and turn the FET...
View ArticleForum Post: RE: Regarding bq24075 Li-ion charger with System Load
Hi, TaharThanks for your reply.I'm going to use tps61032 for the boost circuit. There is a Low Battery Detector Circuit—LBI/LBO.It mentioned:"The low-battery detector circuit is typically used to...
View ArticleForum Post: RE: mini dcdc converter.
Hi Anston, The design is excellant, with min of BOM, but the sch shows only +5v, to get _5v should we go for a transformer with 1:1:1 winding and a seperate diode, or switch to a...
View ArticleForum Post: TPS72201 Adjustable LDO
Dear all, In TPS72201 datasheet electrical characteristics they have mentioned Vo is 2.5V. But using feedback resistors it can generate 2.8V/3.3V also they given one table. Let me know whether...
View ArticleForum Post: RE: TPS54218 thermal resistance from junction to power pad?
The thermal parameters are given below: Result- Theta JA-High K (standard datasheet value)50.0 Result-Theta JC, top (standard datasheet value)59.1 Result-Theta JB (standard datasheet value)23.1 Result-...
View ArticleForum Post: RE: TPS7A7100 Input Capacitor Concern
Chris,The TPS74201 should serve your purpose well. I would also recommend taking a look at the EVM user guide (attached) for more hints on the layout. Regards,Kartik(Please visit the site to view this...
View ArticleForum Post: RE: LM22670 adequate for Conversion +5V - -3.3V, 2A ?
Hi Christian,I've attached the modifications you would need to make this application suitably work with LM22670. You will need a 5A buck if you want 2A Iout. I would recommend using 47uF for C2, and...
View ArticleForum Post: RE: "Non-host control" SMBus Charger System (w/ bq20z65-R1)
Hi John,Setting the [Bcast] bit in operation cfg B register in the data flash enables broadcast. The bq20z65 uses slave address 0x16 on SMB for communication.Refer to section 2.5.1, 2.11.2 , 2.11.3...
View ArticleForum Post: RE: EVM BQ25504 with solar panel
Is the bq25504 switching? Is there a square wave at the LBST pin? What is the BAT_OV setting? With that much current going in, you should have more than 1mA coming out. Is anything else connected...
View ArticleForum Post: RE: What resistor values I need to select for using solar cell...
Try the attached spreadsheet.
View ArticleForum Post: RE: Regarding bq24075 Li-ion charger with System Load
The TPS61032 does not auto turn off when the voltage at LBI drops below 500mV. Also, if the TPS61032 EN pin is low, LBI/LBO function is disabled.
View ArticleForum Post: RE: Problem! BQ34Z100 "Passed Charge" is resetting itself every...
Ilja,It is not uncommon to see SOC jumps during the learning cycle. We have also found that having FConvEn set to 1 can seem to make it worse. You can try setting this bit to 0 in the Operation...
View ArticleForum Post: RE: bq32z110EVM PACK-, BAT- and system Ground connections
Isak, Option 3 is the normal implementation. You are correct that the sense resistor will introduce an offset in the I2C waveforms, bit it should not be enough to cause a communications error.RegardsTom
View ArticleForum Post: RE: TPS7A1633 / IEC ESD test
Hi Kartik-san,Thank you for your suggestion. I will suggest these solution and leave a decision up to our customer. I close this thread so far but please let me ask again if additional question will be...
View ArticleForum Post: TPS65950 LDO input voltage
When using the TPS65950, is it acceptable practice to power the input to one of the LDOs with a separate power source than the rest of the IC? Specifically, if VBAT is a Li-ion battery ranging...
View ArticleForum Post: RE: 24v 7w LED driver (TL4242 or others)
DickThank you for your help, I will let you know how it all turns out.Terry
View ArticleForum Post: RE: bq24160 Charge Termination Anomaly
Thanks so much, Jeff. I disabled the NOBATOP and it worked like I needed.
View ArticleForum Post: BQ24079T - Overdischarge Protection Voltage
hi,we are using the BQ24079T chip in a wireless product to charge a Li-Ion battery (~350mAH; 4.2V). the problem we are seeing is that when the device is run continuously and the battery is discharged...
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