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UCC28051: Recommended Vcc voltage
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BQ4050: Questions from datasheet
Part Number:BQ4050
In the datasheet (bq4050), section 7.3.6.1 is written - " The fundamental rate of the counter is 0.26nVh". is it the threshold voltage (0.26nV) for the sense?
In the datasheet (bq4050), section 8.2.2.1.4 is written - " The device is designed to support 1mOhm to 3mOhm sense resistor"
As i wrote before, my discharge current is 100uA. If i use 3mOhm, The sense voltage would be 300nV.
Would the bq4050 be able to sense such a voltage?
Another question-
section 7.4 - In the Normal mode the date updates every 250mS intervals. what dows it means about the coulomb counter? does it continuous monitoring and accumulating the charge?
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BQ4050EVM-561: chemistry menu not seen in BQstudio
Part Number:BQ4050EVM-561
Here are the details of my setup:
My Problems: The chemistry tab is not visible when BQStudio launches and auto-detects device.
Is there any optionnal installation to do to see it ?
Thanks
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LM5160-Q1: Boot resister of LM5160-Q1
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CCS/BQ27510-G3: BQ27510-G3
Part Number:BQ27510-G3
Tool/software: Code Composer Studio
In my application, I don't use smoothing function on soc.
How much does accuracy of SOH have in active mode(charge, discharge or relax mode)?
How much does accuracy of SOH have after long term storage(board with battery is put on shelf)? Or will SOH of battery after long time storage become accurate after charging or discharging cycle ?
Thanks!
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TPS659037: A question about REGEN1 signal.
Part Number:TPS659037
Hello guys,
One of my customers is designing their system board circuit and they are going to use TPS659037 for it.
They have a few questions for the device as the follow. Could you please answer for the questions?
Q1. They want to supply a power to VIO_IN of TPS659073 via a load switch. Also they are going to
turn on/off the load swich by connectiong REGEN1 output signal of TPS65903 to the enable input of the load switch.
According to TPS65037 datasheet, the power supply timing to VIO_IN must be started after 6 ms from VCC1.
Can the load switch conection be meet to this timing.
Q2. Is there any good circuit to meet to the spec "the power supply timing to VIO_IN must be started after 6 ms from VCC1?
Q3. They think that 16MHz clock is used for RTC only because the block diagram on page 10 shows like that.
They want to know whether 16MHz clock can be removed or not if 32kHz RTC is not used. Is 16MHz clock (Crystal) attaching mandatory?
Your reply would be appreciated.
Best regards,
Kazuya Nakai.
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UC2871: Alternate for UC2871DW
Part Number:UC2871
Hi ,
Any one please suggest an alternate for obsolete Resonant Fluorescent Lamp Driver part # UC2871DW
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TPS61085EVM-355: Prototype tests
Part Number:TPS61085EVM-355
Hello,
We need to know if its possible to obtain another voltage values changing some electronic components to test and evaluate the TPS61085EVM-355 module.
We read the PMP9770 reference document. But we dont know if the circuit design have limitations about the output voltages.
We need these values:
AVDD = 8.2V
VGH = 22V
VGL = -7V
VCOM = 3V
Cheers,
Daniel Matias.
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BQ4050: Chemistry
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TPS65218D0: SEQ Down
Part Number:TPS65218D0
Hi,
My customer is evaluating the TPS65218D0 with AM335x on their board.
The TPS65218D0 arise SEQ Down during working.
According to the datasheet, I'm understanding that it is caused by one of the below red line rectangle.
So I think that we can find the problem if we check these item(PGOOD, VIN_BIAS, etc).
Is my understanding correct?
Please let me know if there is another considerable cause.
(By the way, SEQ down does not happen in the case of TPS65218B1.)
Best Regards,
Kuramochi
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TPS2388: TPS2388 can support the 802.3af?
Part Number:TPS2388
Hi,
can you confirm TPS2388 is support for 802.3af?. as per the EVM schematic, the same design can support 802.3af also or not?
If any other software related changes required to change from 802.3at into 802.3af configuration?
If this IC is not suitable for the 802.3af, can u refer any other IC with same specs with TPS2388.
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TPL7407LEVM: Gerber Files
Part Number:TPL7407LEVM
Dear Team,
the TPL7407LEVM user's guide says the Gerber Files are available on ti.com.
Could you please share the link here, I wasn't able to find them.
Thanks and best regards,
B
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UCC28180: Boost converter
Part Number:UCC28180
Is it possible to use ucc28180 for boost converter circuit whose input is three-phase 415V rectified AC? (I am not looking for PFC in this case).
But the converter must operate in PFC when one phase is missing (i.e single phase 415V). Shall I go for ucc28180 or need to change the IC?
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BQ27520-G4: impact of resetting battery cycle count on voltage and charge
Part Number:BQ27520-G4
HI all,
I need help to resolve some of my queries.I need to reset the battery cycle count but When battery cycle count is getting reset after that if i try to read the voltage and charge then voltage value is coming as 0 volt and charge value is coming as a huge decreased value. but if i wait for some 5 second and read, then voltage is not changed but still charge is showing less value. Is it expected behavior or am i missing something? do i need to do some other configuration after resetting the cycle count?
Thanks,
Likhita
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TPS65910: Vaux2 Issue
Part Number:TPS65910
Dear Team,
My customer find out some of there TPS65910's Vaux2 will output different value.
They just finish the FA report, the result seems good.
Do you have any ideas what might cause Vaux2 output different voltage?
Is component might affect here?
(Please visit the site to view this file)
BR
Kevin
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TPSM84624: The Reflow Profiles of TPSM84624
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LM3150: Absolute Maximum Ratings question
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REF3440: REF3440 negative voltage output?
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LP5912: PG function
Part Number:LP5912
Hello
I want to check If the pull_up voltage of PG could connect to other supply rather than Vout ? I 'm used LP5912-1.2, so If PG pull_up to Vout , the voltage on PG pin is 1.2V after IC start_up, and this 1.2V PGvoltage is too low for enable my second IC, so I want to pullup LP5912 PG pin to higher voltage such as LP5912's Vin_3.3V
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LM5122: Absolute Maximum Ratings question
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