TPS630242: About GND pin and PGND pin
Part Number:TPS630242Hi,I am considering using TPS630242 device.So, I would like to ask you a question.There are two kinds of pins on the ground of the device, the GND pin and the PGND pin.What is the...
View ArticleLM53602: Inquiries about Vcc capacitance(Cvcc) Value change
Part Number:LM53602As you know the capacitor procurement is a trouble in the world wide.So I got below inquiries about LM53602AQPWPRQ1 (1) Currently, Cvcc is 3.3 uF. When changing this value from 3.3uF...
View ArticleLM3464A: not use DHC
Part Number:LM3464AHelloIf i not use DHC, How Can I make circuit?CDHC, OutP, VDHC pin are just open, right? Thank you
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TPS23880: TPS23880 iic problem
Part Number:TPS23880Dear sir: TPS23880 and MSP430 IIC communication has 3 lines (SDAI, SCL, SDAO).is the ordinary IIC not the 2 line of (SDA, SCL)?
View ArticleTPS3808-Q1: TPS3808-Q1 CT pin discharge current
Part Number:TPS3808-Q1Hi support team,My customer intended to use TPS3808-Q1 in their design and wants to know what is the internal discharge current of the CT cap when the RESET is asserted?Thanks a...
View ArticleBattery charger solution
Hello Below is customer charger specification. The application is Mobile power. Charger chip will be on PCM of battery. Has any suitable solution to meet below specificaiton? Thank you....
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TPS61240: Spec quesiton
Part Number:TPS61240Hello Per TPS61240, some question as below. 1. What is the minimum output current? condition?2. About the startup load:It seems that the IC can be startup with 16.5 ohm load...
View ArticleUCC28951-Q1: UCC28951-Q1
Part Number:UCC28951-Q1hello I have designed DC-DC converter for battery charger of 1.32KW. attached below is the power circuit(Please visit the site to view this file)Please ignore CT in the primary...
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REF5020: Does REF5020 could replace LM4140
Part Number:REF5020Hi Team,Customer is using our LM4140 in there project. However, they get a VSSOP package for LM4140 by mistake. Since we don't offer a VSSOP LM4140, so they need to get a replace...
View ArticleTPS25910: TPS25910
Part Number:TPS25910Dear SIR:Good day!!Would you help to review the circuit and have any recommend and advice for the circuit ?Thanks(Please visit the site to view this file)
View ArticleTPS92518: mechanisum about flicker with shunt FET dimming?
Part Number:TPS92518HelloMy customer had still random flicker issue for their board when approx. 0.1% duty.I had recommended customer to have a resistor to shunt FET source ( So, or higher Rdson of...
View ArticleBQ40Z60: Internal temperature immediately rises after turning on the power...
Part Number:BQ40Z60Hello,I'm using a bq40z60 device and I noticed that whenever I turn on the charger's voltage supply (VAC), the internal temperature (which is also the cell temperature in my case)...
View ArticleTLV743P: reverse voltage prevention
Part Number:TLV743PHiMy customer has question.Customers want to use TLV 743. Refer to the attached file for the configuration.I understand that it is usual to prevent diode backflow from LDO into...
View ArticleLM5025A: Review LM5025A PCB layout for better EMC Robust(Surge test)
Part Number:LM5025AHi Team,My customer is using our LM5025A in one key project and using active clamp forward topology. This is a key project for customer and customer hope TI can help review the...
View ArticleTPS54560B-Q1: What's difference between TPS54560B-Q1 and TPS54560-Q1 ？
Part Number:TPS54560B-Q1I check it in datasheet, didn't find differences, need some help please.
View ArticleBQ24250: Overcurrent when charging battery
Part Number:BQ24250Hi everyone,Today, one of our computers locked itself when we were charging our custom board using USB. Our custom board contains a lithium battery and a BQ24250.We've found that the...
View ArticleTPS27081A: TPS27081 power-on behavior
Part Number:TPS27081AI was not able to send you an image, I'll try to explain the problem only in text.On page 1 of the TPS27081 datasheet we can see the p-FET pass transistor (Q1), R1 and C1 (timing...
View ArticleBQ27542-G1: New battery
Part Number:BQ27542-G1Dear TI Engineer,We will use BQ27542 fuel gauge to manager our rechargeable battery, however, we customize a new polymer battery built by ATL, could you share me how to cerate...
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LM74700-Q1: Instantaneous Interruption Condition
Part Number:LM74700-Q1Hi,If EN keeps high and VANODE is interrupted during 10us as above, does LM74700-Q1 turn off? or keep to turn on?This question is related to below thread.Best Regards,Kuramochi
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BQ40Z50-R2: bqStudio ASCD settings
Part Number:BQ40Z50-R2Hi,I've question about bqStudio functionality:When I try to set the current limits in Short Circuit in Discharge (ASCD) protection, I see in manual, that there are 3 settings I...
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