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TPS56520: I2C Timing Requirement
Part Number: TPS56520Hi Team,When I look at the 7.6 Timing Requirements of datasheet of TPS56520, tHD;DAT (Data Hold Time) says that Min=50ns and Max=900ns.But when I look at the tHD;DAT specification...
View ArticleBQ34Z100: Error writing of golden image by microcontroller
Part Number: BQ34Z100I am developing a power control unit which permanently checks the available battery capacity of an Li-Ion battery pack. The main CPU is a LPC 4357. The BQ34Z100 is connected via...
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BQ25700A: BQ25700A does not have charge current
Part Number: BQ25700AHi Use TYPEC charger, the current communication protocol has been OK, VCC_TYPEC has 14.5v, the fourth pin of the plug-in charger chip detects a change in the level, VCC_SYS voltage...
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BQ28Z610: Temperature calibration doesn't work
Part Number: BQ28Z610Hi, I tried to calibrate internal temperature sensor with EV2300, but it doesn't work as below picture.May i know why can't temperature calibration for internal sensor? Regards,Jason
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TPS51200: Schematic Review
Part Number: TPS51200Dear Team,Do you have further comments on this schematic?BRKevin
View ArticleBQ25504: bq25504 query
Part Number: BQ25504HiMy customer use this chip, OV = 3.15v, UV = 2.2v. Used the DC power supply as input VIN to simulate the solar cell.VBAT was connected with a supercapacitor (1F, 5.5v) as the...
View ArticleBQ4050: end of configuration process
Part Number: BQ4050After recieving the text files from the GPC tool, and copying the parameters into data memory in bqstudio, we would like to know if there is something else we should do in order to...
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LM2599: Brown pins after reflow
Part Number: LM2599Hi all,For a new design, we have to use a lead-free reflow profile with a SAC305 solder paste. The results are conform for all smd devices on the board, except for the LM2599:The...
View ArticleBQ25504: the output is 0
Part Number: BQ25504My OV=3.1V, UV=2.2V. I use a DC power supply as the input connected to the Vin, a super cap (5.5v 1F) connected to the Vbat, and a resistance (220Ω) connected to the Vstor.When i...
View ArticleSM72445: How to test AN-2241 SM72445 Evaluation Board
Part Number: SM72445Hi,I'm David.I was testing the AN-2241 Evaluation Board. I followed the testing steps which were in the datasheet.There were 6 steps I found.First is Connect S.A.S. to input.Second...
View ArticleTPS2482: Large offset in shunt measurement from Vin
Part Number: TPS2482Hello. I am seeing a large offset voltage on the Shunt Voltage measurement register at no load. With a 1.5m ohm sense resistor, Vin of 24V, and IC output disabled the shunt voltage...
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TPS61041: high current on both the rails required? how to calculate the...
Part Number: TPS61041Dear friends,I need a positive 24V with an output current of 400mA and a negative 24V with an output current of 400mA. what are the parameters to take care of for high current...
View ArticleBQ78350-R1: How long is the action of balancing current ?
Part Number: BQ78350-R1Dear all The BQ78350-R1 work with BQ7693003 device, for the balancing function, I want to know how long is the time of duation in the balancing ?
View ArticleLP5018: LED output state when the LED output is stopped
Part Number: LP5018I would like to ask about the LED output state when the LED output is stopped.①Set LED output duty to 0% when EN = Hi② LED output is forcibly stopped when EN = LowIs there any...
View ArticleTPS709: UVLO definition
Part Number: TPS709Hello to everyone,Is there an indication of min / max undervoltage lockout voltage from the TPS70933?Thanks and best regards,Brian
View ArticleBattery protection PCB board parameters defined and part seletion
On 10.2.1 &Table 2 of the document 《bq297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell Li-Ion and Li-Polymer Batteries (Rev.F) 》 shows the parameters of...
View ArticleTPS826711: How can we know about the limitation?
Part Number: TPS826711Hi, My customer is wondering where can we get the information about the SMT process? Because the inductor is just right on our module, they would like to know how can they prevent...
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TPS40170: Inrush current question
Part Number: TPS40170Dear Sir.When we were testing the system, we found that we measured the inrush current about 13A.(The voltage is blue, when the voltage has not reached steady state)The R (LDRV)...
View ArticleTPS22917: Reverse Current Blocking vs pulling ON pin low
Part Number: TPS22917Hi,TPS22948 would be a great fit for our needs, but we require more current. So, the TPS22917 looks good from that perspective. There is, however, one thing that we need to cross...
View ArticleBQ20Z655-R1: bq20z655-r1
Part Number: BQ20Z655-R1Hello to Ti support team , I have question according FCC ( Full charge capacity ) parameter . If I do cycles in my battery based on bq20z655-r1 based on conditions : stop...
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