Forum Post: RE: Why the Synchronous Buck inductor dipped below sea-level (0A)?
The 10 V for 10 nsec spec was probably not calculated. The process specification only gives dc voltage rating. that is not practical for dc/dc converter circuits. there will always be some...
View ArticleForum Post: RE: TLV62080 PG Sink Current
In the absence of a current listed in the absolute maximum ratings table, the current used in the test conditions for the PG voltage is considered the limit for the PG pin. For this IC, it is indeed...
View ArticleForum Post: LMZ22010 EN and SYNC
Hi,I want to use several LMZ22010 dc/dc-converters, controlled by a central power sequencer and clocked from a central clock synthesizer.Questions:- while EN is kept low, how does the module handle...
View ArticleForum Post: RE: UC1625 Brushless DC Motor Controller - Speed frequency...
Hello,I've come with a new idea : the over current situation !According to the datasheet, in such a case : "softstart is commanded, and all outputs are turned off until the high current condition is...
View ArticleForum Post: RE: TPS84320's application
The PH node must not be connected to GND or any other potential. The PH pins must be connected to one another using a copper island beneath the device.The INH/UVLO, SS/TR, & PWRGD can be left...
View ArticleForum Post: RE: bq3060 - Bad current calibration - instant permanent failure...
Jimmy,You probably will get more help if you start your own post instead of reopening one from two years ago.
View ArticleForum Post: RE: Some explanation about POE classes
View the concept of classes in the light of multiport PoE sources. The ability to alocate power based on declared class offers the benefit of more ports served for a fixed power source (i.e. cost per...
View ArticleForum Post: RE: external parts with PTN78060A
Rohit:The ceramic capacitors, 4.7uF,are available world wide and from Digikey,. The ceramic capacitors 4.7uF(3) and (1) 100UF polarized capacitor is required on the input bus pin 2 to ground...
View ArticleForum Post: RE: TPS40170 Programmable variable voltage supply. How?
Am I getting closer? Program a DAC like a TLC5615CP which provides an analog voltage output, then use it to drive either a transistor with a Vce over 40 volts, or a transconductance amplifier like a...
View ArticleForum Post: RE: CSD17313 wrong dimension for PCB Pattern
Thanks for bringing this to our attention. We're looking into it but I may not have an answer for you until next week due to several people being out on vacation. I will then correct the datasheet, if...
View ArticleForum Post: RE: Upgrading bq20z90 V1.10 to V1.50
Just got a new battery pack and discharged it until it shut off and now can't charge. It has a BQ20z95 in it and I get the sma error as above in this forum FETS are open and pack draws 1 mA. I...
View ArticleForum Post: bq24314 VBAT pin connection
Hi Expert,Really need your advice for bq24314 application design, my customer would like to unuse BATOVP function but it is difficult to change circuit becasue already Gerber out.So they plan to H/W...
View ArticleForum Post: RE: TLC59116 sample program
Hi Atsushi,which kind of 'sample program' are you looking for?You can find the TLC59116EVM-390 software here: http://www.ti.com/tool/tlc59116evm-390Which kind of host MCU were you using?Kind...
View ArticleForum Post: bq24079 / Current factor
Hi,Now we are promoting bq24079 to our customer and they are reviewing its datasheet.They tried to calculated Input Current Limit (ILIM) and Fast Charge Current (ISET) by using formula in datasheet,...
View ArticleForum Post: RE: external parts with PTN78060A
the capacitors are available alright and I've already ordered them, but they will take time to come this time of year. this is why I was asking about using electrolytic capacitors in their place...
View ArticleForum Post: RE: LM2577s-12 Inductor selection
Thank you Akshay,I've finished the design, it works properly. Thank you for the calculations.Regards,Gurkan.
View ArticleForum Post: RE: BQ24104 Boost or buck charger
This is a buck charger. We do not currently have any boost chargers.You would have to use a boost converter prior to the input of this charger.
View ArticleForum Post: RE: BQ2002F as a single 9V battery charger building block
The data sheet has the formula for setting the divider. Typically one uses 1.7V to 1.8V per cell for the maximum voltage. The charger will never get to this voltage and will stay in constant current...
View ArticleForum Post: RE: Achieving minimum parasitic drain from BQ24650
Any advice for the person who created this thread???
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