Forum Post: RE: What are the Symptoms of bq77910a?
Yes, bottom up connection is generally considered best. Battery- connects to Vss of the IC and voltages are referenced to this point. As cells are connected from the bottom up the differential...
View ArticleForum Post: RE: Voltage for LED question
Kazuya, I need to ask for clarification. I was under the impression from some diagrams I've seen that the cathode of an LED is what connects to the TLC5928 "output". Is that correct or am I mistaken?
View ArticleForum Post: RE: TLC59116 sample program
Hi, I am using the TLC59108 in application with STM32F100CB. I tried using its designed slave address (A0=A1=VCC, A2=A3= GND, i.e. 0x86), I did not able to receive th ACK of Address byte itself.After...
View ArticleForum Post: RE: Why the setup converter just reach 100V?
Hi Akshay,Thanks for the data you recommended, That will be very useful for my PCB design.Both of the 150V converter works.About he 150mA converter, I found the reason that the LM3488 be damaged....
View ArticleForum Post: RE: LM5116 VCCX current consumption
HiSorry. I don't have information about PWM controller without drivers.Regards,
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Forum Post: LMR12010X help..
I cant get my regulator to work properly, i used the datasheet and some tools on the TI website for guidance but nothing is working. The regulaor is not switching at all and the voltages i measured...
View ArticleForum Post: digital controlled ZVT PFC
Hello, Does TI have a ZVT PFC demo kit ital control?Thanks,
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Forum Post: RE: TPS5450DDA exhibits poor step load transient response
Hi John:I appologize for the long delay but I had to complete some other work. Back to the issues with my implemenation of the TPS5450. I was not vey clear in my past posts. The test fixture I made...
View ArticleForum Post: RE: TPS61200 not starting up
There can be 2 states:1-) Your battery does not supply enough current for start-up. To skip this stage, try to use high current power supply.2-) Your capacitors may have high ESR value. Try to use...
View ArticleForum Post: RE: UC3855
Current transformer ratio can be calculated using input voltage at Ion pin at UC3855.Voltage on Ion pin must be equal 1V. Calculate transformer ratio and resistor value according to this value.
View ArticleForum Post: RE: TPS2540
The voltage on the ILIMx pin is regulated. The current through the ILIMx programming resistor is used internally to set current limit.Please take a look at TPS2543. It is nearly pin-pin compatible with...
View ArticleForum Post: RE: BQ24073 question
There is BAT pin short-circuit detection threshold of 2V
View ArticleForum Post: RE: Automaticly switch and fallback RS232 async/sync ports
This forum is for power management issues or designs related to TI Simple Switcher power product. Not expert on RS232.-Yang
View ArticleForum Post: RE: LM2852XMXA no load current
The Iq spec on the DS is the supply current with part enabled, but switching disabled.I checked an evaluation board on the bench, the supply current with part enabled and output voltage regulated...
View ArticleForum Post: RE: 4.2V Voltage Detection
Hi Darwin,OK. I will try both the option. Thanks for the valuable feedback.Regards,Amit
View ArticleForum Post: UCC28950 / Detection of CS voltage
Hi,I understand that UCC28950 set delay time like TABSET by detecting CS voltage. Then I would like to know the detection timing of CS voltage. For example if CS voltage like attached is applied...
View ArticleForum Post: RE: TPS40305 is damaged when feedback resistance is dynamically...
Hi Na,The input voltage is 12V. I will take some measurements.Regards Grant
View ArticleForum Post: RE: TPS2511 Current limiter?
Hi Eric,Thanks for your response, I will reply next week when I have had the chance to troubleshoot my circuit further then get back to you.Kind RegardsChris
View ArticleForum Post: RE: BQ24170
Hi,Interestingly.If there is no battery connected and 12V input is connected the battery detection logic seems to think that the battery is connected and trys to charge. ACDRV is being turned on and...
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