LM25085A: Motor drive using SWPS
Part Number:LM25085AHiThe customer considers DC motor drive system using LM25085A.The requirement for LM25085A is as follows.INPUT:17V-25.2VOUTPUT : 16.2V/3A (8A peak)EN function(Please visit the site...
View Articlepower supply scheme
Two lithium batteries are connected in series.Is there a suitable recommendation for Hisilicon Hi3519A power supply scheme?
View ArticleBQ25570EVM-206: Efficiency of BQ25570 EVM is not correct with datasheet
Part Number:BQ25570EVM-206Deal TiI am working with BQ25570 EVM-206, setting MPP = 80% ( Voc_samp = 80%) . Input is a GaAs single crystallize ( Voc = 0.94 V, Isc = 16.04mA) at 16600 lux from LED light...
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WEBENCH® Tools/TPS40170: TPS40170
Part Number:TPS40170Tool/software: WEBENCH® Design ToolsI fill in the reference board data in TPS40KType III Loop Stability.xls but get a different bode plotWhich data I fill in is wrong?47uF: 23.5uF...
View ArticleTPS82693: Please check the TPS82693 min current limit is how many, and it can...
Part Number:TPS82693Could you please check the TPS82693 min current limit is how many, and it can be guaranteed Iout =800mA at least ?Thanks,Brian
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LM5032: Double pulse on output pins 7&10
Part Number:LM5032By reducing the duty cycle via Rdcl, outputs 7 & 10 have a double pulse (sometimes triple) , never more .Cres =100nF & Css= 220nFRdcl=68k ;Rrt/syn =90.9k ;Vin= Vcc= de 11 à 12V
View ArticleTPS2HB08-Q1: Current Limit Accuracy
Part Number:TPS2HB08-Q1Dear TI Expert,The datasheet of the TPS2HB08-Q1 (SLVSDZ3A) does Not specify an accuracy for the current limit setting. If you can please provide a figure of the current limit...
View ArticleBQ4050: ChargingCurrent and Charging Voltage
Part Number:BQ4050 The Advanced Charge Algorithm Section from The Technical Reference, describes A table with Temperature and Voltage Axis (page 30 sluubc1d). the next pages explain the configuration...
View ArticleUCD9248: My UCD9248 firmware project debugging
Part Number:UCD9248I have two versions of UCD9248 firmware projects. Both of them have bugs. I hope you can tell me where the bug is.This (Please visit the site to view this file)is the first firmware...
View ArticleBQ24259: can PSEL be floating?
Part Number:BQ24259Hi,my customer tested with PSEL floating to set input current limit to 3A and find that it works.But they need to know if it's stable to float the PSEL in the real application, do we...
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TLV755P: Startup time issue
Part Number:TLV755PDear expert,We measure startup time of TLV75510, but the result is different from datasheet.According to datasheet, Tstr is around 550us(typ) but we only get ~250us.May I learn from...
View ArticleTPS40425: About the FUSION_DIGITAL_POWER_DESIGNER tool for TPS40425
Part Number:TPS40425Dear Sir,I am Alec form WT in Taiwan and we have a customer currently using TPS40425 . RD is trying to install TI FUSION_DIGITAL_POWER_DESIGNER tool to design TPS40425 . However,...
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TLV62585: TLV62585 Reduce the ripple for PSM mode when output is 4V
Part Number:TLV62585Hi Team, My customer is doing a design with TLV62565, input is 4.5-5V, output is 4V.When testing with light loading on the TLV62565 EVM, it was found that the ripple is very large....
View ArticleLP8862-Q1: SEPIC power stage design review
Part Number:LP8862-Q1Hi Would you help review my LP8862-Q1 SEPIC power stage design. does it make looks ok ? (Please visit the site to view this file)
View ArticleSuggest part please - Constant current buck converter with Vout down to zero
Hello,Having dificulty selecting part for constant current buck converter. Proj. description: to design resistive switching wire heater psu with regulated current. The load resistance is extremely...
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BQ28Z610: When the C FET is off, the pack pin will have a false voltage.
Part Number:BQ28Z610This is the use of 1sWhen COV or FC occurs C-FET off pack pin would have a false voltage.why is that? What is the cause of the situation?Is there a suggested way to improve?
View ArticleUCC28051: Cautions when using with DC input voltage
Part Number:UCC28051Hi,I am a FAE of a distributor selling TI products.UCC28051 devices are proposed to customers for the following specifications.We believe that Figure 19 in the data sheet can be...
View ArticleBQ24092: High Voltage on the input
Part Number:BQ24092Good Morning.I am using the BQ24092DGQR chip on a handheld device with a lipo battery that is charged through Micro-USB-interface. My team have some concerns regarding the input...
View ArticleTPS1663: tCL_PLIM without thermal shutdown
Part Number:TPS1663Hi,I have a question about fault condition.In D/S, 9.3.4.1 Overload Protection "The maximum duration for the over current through the FET is tCL_PLIM(dly), 162 msec (typical)."In...
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BQ25713: Selection of inductor and FET
Part Number:BQ25713Hi,I am a FAE of a distributor dealing with TI products.We are proposing the BQ25713 device to our customers.The specifications are below.I would like to propose FETs for Q1 to Q4 in...
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