CCS/UCD3138PFCEVM-026: UCD3138PFCEVM-026
Part Number:UCD3138PFCEVM-026Tool/software: Code Composer StudioHi engineers: About UCD3138PFCEVM-026 Programm, I download the code(PWR026_PFC) from TI website, and debug by CCS6.2.0 and 9.1,...
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LM22678: Power management forum
Part Number:LM22678Hi all.According to the data sheet, the resistance is set as shown below, and 4.998V is normally output.However, after a few seconds to a few minutes, the power goes down.Vin...
View ArticleULN2003AI: differences between ULN2003AI and ULN2003A
Part Number:ULN2003AIHello Team,My customer will change the device from ULN2003A to ULN2003AI due to an ambient temperature is higher than ABS. Customer wants to know what he should focus on the...
View ArticleTPS54160: PMP5150 reference design
Part Number:TPS54160HiWe could not see reference design of PMP5150.http://www.ti.com/tool/PMP5150Do you have any information?BestRegards
View ArticleBQ25120A: Verification of Power Section for Glucometer
Part Number:BQ25120ACustomer has designed power module for their 600mAh Battery Charger and stable power regulation at 3.3V with less than 1% tolerance on load condition.Kindly help to verify the...
View ArticleTPS61099: Vin to Vout gap question
Part Number:TPS61099Hello Sir,May I have your comment Our application is one-time Li-battery 2V~3.6Vin . Target Vout is 3.3VVin < Vout+0.5V enter down mode .But when Vin close to Vout or a little...
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TPS65190: Why could TPS65190 VCOM not work?
Part Number:TPS65190Hi, Sir,I used reference design at datasheet. But VCOM is always output avdd, it is not half avdd. so what should I do?regards,Hsu Hung Lin
View ArticleTPSM831D31: Can TPSM831D31 support stackable function
Part Number:TPSM831D31Hello Team,My customer has a special application that need large current output, the Vin is 12V, Vout is 1V~3V(adjustable by like PMBus), Iout (max.) is 1000A. It seems like there...
View ArticleLM25117-Q1: LM25117-Q1 configuration of CM pin
Part Number:LM25117-Q1Hello team,My customer is considering whether they use CM pin or not. Then the customer has a question.They would like to set float at CM pin when the current monitor function is...
View ArticleUCC28951-Q1: Low pass filter on CS pin
Part Number:UCC28951-Q1Hi Experts,On our designed PCB, there are serge on the current of primary side of transformer, we add LPF on CS pin to avoid the surge.1. Is this understanding correct to avoid...
View ArticleTPS54061: Inverting output
Part Number:TPS54061HiWe want to design inverting output circuit with TPS54061.The requirement is as below.Input : 24VOutput : -17V/100mADo you have any materials or reference design that can be help...
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UCC28951-Q1: RCS calculation
Part Number:UCC28951-Q1Hi Experts,We calculate RCS by following below equation and it becomes 15 ohm.My question is that with this resister value the current is NOT limited by our target. Do we miss...
View ArticleLP5562: I2C standard mode rise/fall time spec
Part Number:LP5562When LP5562 is operating at standard mode(<100KHz)The rise time / fall time can follow UM10204 standard mode spec ?For example1. Rise time for SCL\SDA measurement result is...
View ArticleTPS65320D-Q1: Switching frequency control.
Part Number:TPS65320D-Q1Hi,I would like to create "dithering" by adjusting the BUCK switching frequency from external source ( MCU) .Will the BUCK stay stable while changing its switching frequency...
View ArticleLM79: -15V output 3-terminal regulator (TO-220) which can support in minus...
Part Number:LM79Hello experts,I'm looking for 3-terminal regulator (TO-220) with fixed -15V output.LM7915 looks good, but operating temperature range is little bit narrow. I need the device which can...
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TPS65094: how does push-button circuit connect without EC
Part Number:TPS65094Dear Sir, We are now using TPS650940 as PMIC and TPS51285B as BUCK for Intel APL-I and without EC. The BUCK have 2 always-on rails, VREG3 and VREG5 and we use VREG3 only....
View ArticleUCC28951-Q1: Magnetization support
Part Number:UCC28951-Q1Hi Experts,We add 66uF capacitor on the primary side of transformer to prevent the magnetization. The magnetic flux density is 150mT but it looks the transformer is...
View ArticleTPS92515HV: PWM frequency and UVLO (Part2)
Part Number:TPS92515HVHello,we still have some issue with the proposed solution. To avoid any misunderstanding can you point me the proposed boot circuit that replaces the circuit in Figure 25...
View ArticleTPS23880: I2C connection through I2C switch
Part Number:TPS23880Hi Team,Our customer plan to connect three TPS23880 through an I2C switch(PCA9548), is this has any side effect? Or anything needs to be careful?Thank you very much,C.T.
View ArticleLM5150-Q1: Duty cycle limit at cycle-by-cycle current limit in start-stop mode
Part Number:LM5150-Q1Hello team,My customer want to know how much the duty cycle was limitted or decreased when entering the cycle-by-cycle current limit in the start-stop configuration.Please expalin...
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