Forum Post: RE: fixed regulators
Hi Anjum,At this moment TI does not offer a dual channel bipolar output regulator. Even all our single channel negative output regulators require a negative input.You could visit TI's WEBENCH tool for...
View ArticleForum Post: RE: LM4140 - Output resistance negative?
Hi Rahul,Negative AC resistances can occur in these measurements. It means that there is a negative voltage change for a positive current delta. It will be very difficult to remove the signal you are...
View ArticleForum Post: TPS51125 mosfet selection
Greetings -I have a board that uses the TPS51125. So far, with a straight implementation from the datasheet, it works great. I would like to reduce the size, by using smaller footprint mosfets. Since I...
View ArticleForum Post: LM3463 - suitable offline power supply with voltage feedback input
Hi,I'm interested in using the lm3463 with an off-the-shelf power supply, but I'm having a hard time sourcing one with a voltage feedback input that would allow the lm3463 to control Vrail via pin 21...
View ArticleForum Post: RE: Analysis of board-level with Near-Field ElectroMagnetic...
Hi Anston,Thanks for your feedback, I will give customer one evm to verify the issue which is topic we talked, may post any question if caused later, thanks.
View ArticleForum Post: A problem about BQ500211A Demo
Hi,I use BQ500211A demo with BQ51013B demo for some tests, they can work very well. But when BQ500211A demo is using for charging a LG Nexus4 cellphone, the LED indicate that the PMOD or FOD function...
View ArticleForum Post: RE: BQ20Z75 Remaining Capacity, Remaining time to Empaty and...
JayeshYou may not be doing anything wrong. I assume that your Qmax is 4400mAh. If so, FCC and RM will be less than 4400mA. FCC is based on Qmax, the Load Select, temperature and the Ra-table. RM will...
View ArticleForum Post: RE: BQ77910A：I cannot charge
Since CHG is 11.8V, your charge FET should be on, however the CHG output is controlled relative to CPCKN which should be approximately the same as PACK-. It would be good to measure CHG with respect...
View ArticleForum Post: RE: Traces for TX and Rx Coil
Hi Bill John,Thanks a lot for your reply.What are the good practices should follow for routing the traces from TX /RX IC to the coil ?1) Thick and short traces ?2) No via is allowed on the traces ?...
View ArticleForum Post: RE: BQ26500
Hi DmaxThnx for your reply. Its a new design battery and we are manufacturing it at high scale i.e 1000 batteries per month out of 1000 batteries approx. 100 batteries as dead during manufacturing...
View ArticleForum Post: RE: bq77908A bq77910 high current cell balancing
You've been very helpful! Thanks a lot!
View ArticleForum Post: RE: New Development based on bq500211A/bq500410A
Q1) Is 5V input possible with 410A?A1.) No, the bq500410A power stage is designed for 12V. The WPC standard TX type is A6.Q2.) Your EVM does provide for it with a boost regulator module, but are there...
View ArticleForum Post: RE: low power application
I will contact you using the Conversations feature of the forum to discuss this
View ArticleForum Post: bq2000 charging issues
Our team is designing a digital hearing aid for a school project that will be rechargeable via a micro USB cable. The BQ2000 battery charger IC is being used to implement this but we are coming across...
View ArticleForum Post: RE: SM72445
Hello John, I'm alessandro , a michele's friend.We have only one problem: we can't put the device in boost mode, neither in MPPT mode, nor in Open Loop mode1. In open loop mode, the 9bit register...
View ArticleForum Post: RE: PFC for LED Driver
Thanks for your suggestion. I am not sure if there is a special adapter for airplane use. I would assume that the standard adapter that comes with a laptop or IPad is not designed to meet those...
View ArticleForum Post: RE: Measure present current with bq34z110
Anmol, the instantaneous current can be read with a Control subcommand. Please see page 10 of the datasheet. You can refer to this e2e forun ink for examples of reading a Control subcommand....
View ArticleClik here to view.
Forum Post: RE: MC34063 Switching Regulator IC
Hey Ron I've got another question. Everything is working out and calculating fine now especially since I laid out a PCB instead of using bread boards. One thing thought I don't understand is that...
View ArticleForum Post: RE: Multiple PTH08T2xx modules w/ & w/o SmartSync
Are there special considerations for choosing between the two types of PI filters for a specific PTH module? E.g., can I choose the filter with inductor for PTH08T220/230?
View ArticleForum Post: RE: Can I use two resistors in series for Rset for PTH08T2xx...
Good to know that. Thank you greenja!
View Article