Part Number:BQ51020
Dear all:
The system USES the battery wired charging chip of BQ25896 and the wireless charging chip of BQ51020
The question now is: how does a battery pair up with these two charging chips to create a charging system when two charging all exist?
When there is wireless charging, how can I disable wired charging；How can I disable wireless charging when there is wired charging?
Part Number:BQ24610
Hello,
I've been thinking of a way to reduce the power consumption of the BQ24610 with its LED's, while keeping them bright enough.
My system uses 24V Power Supply and the battery attached is a 5S1P Giving a voltage range from 13V to 21V.
I have a DCDC Converter which is an LMZM33606RLX which outputs 12V for my motor.
I thought of dedicated LED drivers but all I have seen are LED drivers which takes full control of the LED's and you need to send a control signal to the LED driver.
I was thinking I could go two other ways:
1) As I have an LMZM33606RLX at 12V, I could connect and power the LED's for CE, PG, STAT1, STAT2, ACDRV and BATDRV with the correct resistor values in series, but the worry I forsee is possible issues of the BQ24610 signal pins might get damaged from using the 12V supply (I could be completely wrong, because part of me is saying it can't be true as your resistor will limit it, but somewhere in my mind its saying there is a reason why they use 3.3V from VREF to power the LED's on the BQ24610), this option would be great as then I don't have to add extra components to the system at all, excepts some BAT54 diodes so I can run the LED's from the VREF or when the 12V activates.
2) Is to run all the leds from a dedicated buck DC-DC converter instead of a linear DC-DC converter from either 3.3V output or 12V output.
I hope to hear from you guys soon!
I have attached a picture of the simulation I ran quickly on multisim for idea 1, with worst case senariro if both VREF and LMZM33606RLX ran as the same time to power the LED
Best regards
Mo
Part Number:BQ34110
Hi,
I've generated a golden image using bqStudio, which will later be used by a microcontroller to program a bq34110.
The srec and bq.fs files work totally fine to program the bq34110 with, but when I try to program the df.fs file it fails when verifying the existing firmware version.
;--------------------------------------------------------
;Verify Existing Firmware Version
;--------------------------------------------------------
W: AA 3E 02 00
C: AA 3E 02 00 FF A5 FF A5
As I use the latest firmware I get the firmware version 01 10 00 02. So why does it try to verify that the version is FF A5 FF A5? The ref manual says that it will always report the device number 0110 for the bq34110 device, so how should it even be possible to get FF A5 FF A5?
Br,
Johannes
Part Number:UC3825A
HI Sirs,
Sorry to bother you.
Could you help share UC3825ADW package for us?
Such like
Part Number:TPS53313
Hi,
I have made 5V, 6A output current switch circuit using TPS53313. I have followed G3-PLC (CENELEC Band) Data Concentrator Reference Design page #47.
Now when I test using 1 ohm, 5w or 10w resistor it gives maximum 5V, 2A power when input is 12V, 5A current
Also as per webench some component values are different then the reference above I have used in circuit design.
So, please check my circuit and let me know the errors and solutions/suggestions to overcome it.
Please find attachment.
Thanks
Part Number:TL432A-Q1
Hi team,
We got below 2 questions regarding to TL432A-Q1, could you please help to check about it, thanks!
1. How the Von = 2V comes from? Is it means when the input voltage of V_IT=2.5V, the output voltage will be Vo=2V? How to calculate it?
2. What is the input serial resistor for? As well as the BJT? How this circuit function?
Part Number:TPS2546
Dear Team,
My customer measured the waveform of CTL1/2/3/ILIM_SEL when the system resume from S4/S5 to S0.
They found that there are some unexpected pulse at CTL3 (Channel 3). Please see the below waveform.
CTL3 is controlled by BIOS, but they cannot remove those pulse until now.
So we would like to know what is the sample rate on CTL1/2/3/ILIM_SEL. Will those pulse impact the function of TPS2546?
Thank you.
Part Number:TPS5450
I have currently two parts from same above family 1)TPS5450DDAR and 2)TPS5450MDDAREP .What is difference between these two?what SWIFT converter means?
My input to regulator is 24V and output is 12V. Operating temp require -30 to +55 deg. is there any better EMI perfoemnce on TPS5450MDDAREP compared to other ?
There is no use if I use TPS5450MDDAREP if it doesn't offer low EMI/ Radiaion.
Also is texas instrument provides any Low EMI special regulators??
Regards,
Pradeep
Part Number:TPS548B22
Hello TI,
We use TPS548B22 converter for 12V to 0.8V solution. We found the start-up waveform is not smooth.
Seems the soft-start mechanism is not quite well because the first several duties are too wide during this period.
Is there any solution to avoid this? or it's not resolvable?
Regards.
Stan.
Part Number:TPS2421-1
Hi Sir,
The Datasheet is show the Ton=15ms form Table2, but Equation 15 key in 0.012.
Why is 0.012? not 0.015?
Hugo
Part Number:TPS2546
Dear Team,
My customer measure the OUT voltage turn on time on their system.
They found that it took about 2.21 seconds to turn on the switch. It doesn't meet the spec 4ms (Max).
Is there any test condition we missed? Please help to clarify.
Thank you.
Part Number:LP5569
Hi Team,
My customer has a problem that LEDs, in LED7 channel (Green LED), are still light ON even the current is set to 0mA. The rest channels behave normally if the current is set to 0mA.
Customer use external independent HV source to drive 6S3P RGB LEDs. The SCH is below, do you have any comments about the issue above? thanks!
Part Number:TPS3808
Hi
