Forum Post: RE: BQ2205 Vout Max output current
Hi Tommy,For this device, it is recommended not to exceed 80mA on VOUT as shown under the test conditions in the electrical characteristics table of the datasheet. Typical 3V standard low-power CMOS...
View ArticleForum Post: RE: TPS40210 questions: Thermal pad, and Sub-Harmonic Instability
Anthony,We are definitely headed in the right direction. I lifted the ground from C42 and connected it to the GND that I attached the thermal pad to. This is a through hole GND for a NOPOP Y-Cap below...
View ArticleForum Post: BQ2031 for more than 18 cells
Hello I'am playing with the bq2031 trying to make a battery charger for 32 lead-acid batteries of 6 cells each 192 cells in total, the issue is if the bq2031 can be use for those quantities of cells?...
View ArticleForum Post: RE: Suitable IC for 3.3V, 3A output
Thank you for the answer! What is "Vf " that you used in calculating efficiency? why it is equal 0.5 ?
View ArticleForum Post: RE: 8A pulsed LED drive
We only have one part which work from single cell Li batteries and it is an integrated FET device which is not capable of 8A. LM3410. We have some DLP/projector parts which made for this kind of...
View ArticleForum Post: RE: wireless charging
Hi,Are you using EVM to EVM? Please change the battery and do the test again. Make sure the TS jumper is in DIS position and EN1 and EN2 are low. Also try the ILIM jumper to FIX positions. ThanksTahar
View ArticleForum Post: RE: Power Supply Design
i designed DC DC Converter using TPS40210 and i an getting output.but the o/p is not stable, when i decreases the Isense resistor value its voltage level increases and i/p current also decreases.three...
View ArticleForum Post: Flyback Transformer
Hello, I am trying to find a flyback transformer that can be regulated to 600vdc; any help will be greatly appreciated.Thank YouAnthony
View ArticleForum Post: RE: Using the UC3906 linear lead acid battery charger to design a...
Not sure this charger is setup for a solar panel input since there is no input voltage regulation loop. You can refer to the following document to get more information on...
View ArticleForum Post: RE: PTH08T250W heatsink options
Chris: I will call you off line. I left you a voice message today.Tomtguerin@ti.com
View ArticleForum Post: RE: bq51013b losing Connection
Hi,at all times. Any charge levels. i have also tried with micro usb connector an a andorid phone same problem.
View ArticleForum Post: RE: TPS542941 SW pin abnormality
I checked this today. To be able to do all testing with my EVM, is started with the supposedly non destructive scenario #2 first. Apply short from VIN2 to SW2, then turn on EVM. Output number one...
View ArticleForum Post: RE: LP38693SD Ven to Vout delay time
I don't see where anything will be done on the TI side, beyond raising awareness, when appropriate, of this totally unexpected behavior.
View ArticleForum Post: RE: Tps70148 dual output regulator
Hi Vinoth,This is unusual behavior! Have you tried replacing the TPS70148 with another part? If so, is the behavior the same on every TPS70148?To help me better understand the conditions, could you...
View ArticleForum Post: Multi-Battery LiPo Monitoring and Charging
Hi,I have a complex smart battery system to design. Before I start a more thorough evaluation I wanted to make sure I had covered all the bases that need covering. I can upload copies of the various...
View ArticleForum Post: bq24032A, bq27200 and Reverse Current/Battery Protection
Hello all, I have a cylindrical Li-ion battery that can easily be installed backwards. I am trying to adapt a circuit design that has a charger (bq24032a) and a battery fuel guage (bq27200). Can...
View ArticleForum Post: LMZ12002 Usage Questions
HelloI'll start this post off by saying that this is the first time I've ever used a switch mode power supply/regulator, I've mostly been using LDO regulators but for my recent project I wanted to use...
View ArticleForum Post: RE: BQ27541-v200 Internal Temperature Sensor
a) There really isn't any explanation for the phenomenon. That's why calibration is important.b) You are correct. The Int sensor isn't recommended to be used as the primary temp sensor. Impedance Track...
View ArticleForum Post: RE: LM5118 noise on Vout
HiYou may need a very short gnd connection and the shielding of the probe tip to a ground connection close to Vout.Please refer...
View ArticleForum Post: UCD9090 watchdog
I'm trying to disable the watchdog function dynamically.The device is programmed with the WD enabled. When we send an I2C command to disable it (either from the Fusion GUI or our application), the...
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