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BQ24650: Issue with charging where it is on and then fault repeating over and...
Part Number:BQ24650Hello Support Team,I am using the BQ24650 to charge two Li-Ion batteries in series. I have a 20V input and a 8.35V output. When I attach the battery pack (7.9V total) the STAT1 LED...
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LM3488: Output FET permanently on
Part Number:LM3488I have the same problem as per the linked question. The LM3488 runs for about 3mS when enabled, then switches the FET (Q1) on at 100%.The connections and part values are as per the...
View ArticleTPS5420: Aging variation of reference voltage
Part Number:TPS5420Hi,Is reference voltage affected by aging?If yes, how much does it vary?Best Regards,Kuramochi
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LM2734: Tolerance
Part Number:LM2734Hi TI Team,For the LM2734 Vfb voltage, as you can see, the Vfb reference is from 0.784V to 0.816V If Tj from -40degC to 125degC. I believe that this tolerance (0.784V ~0.816V)...
View ArticleLi-ion Battery AC impedance measurement
Hi Ti Guys :here is the question which is about "Li-ion Battery AC impedance measurement" ; and just to discuss with you that will any information like as environment set-up / tools / method to...
View ArticleBQ35100: FW update
Part Number:BQ35100Hi Team,There are some FW update questions. please kindly help.Do we need input default FW in BQ35100 after mounting on board?Could we Calibration the non-FW board firstly, and then...
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UC2845A: How much temperature can UC2845A Junction be withstanded ?
Part Number:UC2845AHi, Team.Could you tell me how much temperature how much temperature can UC2845A Junction be withstanded ?the datasheet mentions "junction temperature , Tj" shows -55 ~150℃.does...
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LM5160-Q1: LM5160-Q1 Questions about how to connect the LM5160-Q1 Flybuck...
Part Number:LM5160-Q1Dear support member,My customer used LM5161-Q1.I have a question.（Situation)My customer want to measure the phase margin and gain margin to verify the feedback stability of the...
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TPS2549: Charging port controller DCP Dual connection not charging my device
Part Number:TPS2549Hello, I'm working on a basic power-bank device, where I use TPS2549 charging port controller with the same connection like the one in the example, my schematic is shown below: I've...
View ArticleTLC6C5724-Q1: How to use LATCH signal correctly
Part Number:TLC6C5724-Q1According to Spec. P.11 & P12, it show the waveform of "GS data write" & "FC/BC/DC write".When GS data write, the LATCH is default low, and will issue a rising pulse...
View ArticleLM5066: LM5066 Reverse Current Reading Issue
Part Number:LM5066Hi,Can LM5066 read reverse current and through I2C send data to MCU? If it can't, is any method to read reverse current by adding a external circuit? Thanks.
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BQ24617: How to set the termination current below 125mA
Part Number:BQ24617Hi,Sir: From the spec of BQ24617 charger, it descripte that the termination current will clamped to be around 125mAwith default 10 mOhm sensing resistor.If I want to set the...
View ArticleLM285-2.5: LM285BXMX-2.5/NOPB Vref shifted after aging
Part Number: LM285-2.5Hi,(Part number : LM285BXMX-2.5/NOPB , Application : DCS card)My industry customer encountered Vref (reverse breakdown voltage) shifted problem after certain period of usage...
View ArticleBQ25882: BQ25882 and Battery Balance
Part Number:BQ25882My applications are as follows:1、两节锂电池串联使用，供给类似运动相机的设备，边走路边拍摄，设备上有三个三相直流无刷电机（供电电压7V左右），作用是调整相机保持稳定状态从而有更优质的画面。1. Two lithium-ion batteries are used in series to supply equipment...
View ArticleBQ25887: battery balancing
Part Number:BQ25887My applications are as follows:1. Two lithium-ion batteries are used in series to supply equipment similar to a moving camera. They take pictures while walking. There are three...
View ArticleLMR14050: To pass conducted emission test
Part Number:LMR14050I am using LMR14050SDDAR switching regulator which is designed for 28V input and 5V output. I have set switching frequency to 800khz. But its failing conducted emission test as...
View ArticleLMR14050: Conducted Emission Test Fail
Part Number:LMR14050HelloI am using LMR14050SDDAR switching regulator in my design to obtain output of 5V from 28V input. I have set the switching frequency to 800khz. Its failing conducted emission...
View ArticleLP87564-Q1: Individual PGOOD signal
Part Number:LP87564-Q1Hello,My customer would like to know if there is a way to configure the ENx pins as individual PGOOD for BUCKx, for example, configure EN1 as a GPIO output and report PGOOD status...
View ArticleBQ25150EVM: Charger_1_00-bq25150.bqz
Part Number:BQ25150EVMPlease be kind enough to email me the "Charger_1_00-bq25150.bqz" file as bqStudio (ver 1.3.86) doesn't have it.
View ArticleCHEM ID matching test question
Hi !i will use the GDK and gauge EVM to help my customer build the CHEM ID matching first, the question is my customer project battery design capacity is 240mA, then charge test will need to 1/100C to...
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