TPS22930A: inrush current issue
Part Number:TPS22930AHi, TPS22930A shows that it supports controlled inrush current. but can't find the description from datasheet. please kindly suggest how to control the inrush current. My customer...
View ArticleSoft-start of MC33063
We have questions about MC33063.Question 1.Does this IC have soft-start?Question 2.Please tell us the soft-start time if this IC has soft-start.Best regards,Takahiro nishizawa
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TPS62088: SW output voltage if TPS62088 disabled (EN low)
Part Number:TPS62088Hi,Does the TPS62088 impose a voltage if the EN pin is low? On our custom board, when the TPS62088 is disabled, the SW pin is at 0.40V.What can we do if we want to have a 0V if the...
View ArticleTPS7B63-Q1: watchdog WDO function
Part Number:TPS7B63-Q1Dear expert,My customer is asking which pin in MCU or Core ship should WDO pin be connected to and how does it work. Since WDO signal is used to reset the MCU when software runs...
View ArticleUCC28630: Peak noise at 700-750kHz
Part Number:UCC28630Hi guys,my customer uses UCC28630 in a 50W LED power supply. When measuring grid-bound noise (150kHz-30MHz) they notice some peak noise at 700-750kHz, which they were only able to...
View ArticleBQ34Z100EVM: IT learning with no charging cycle
Part Number:BQ34Z100EVMHi,I have a system whereby it is not possible to charge the Lion batteries in situ. They must be charged separately from the system in which they are used.I.e. when I perform...
View ArticleTPS65921: Same use software
Part Number:TPS65921Hi Team,My customer is considering substitution with EOL of TPS65921B1ZQZ.I use software provided by TI until now, and I would like a power IC that can be used if possible.Examining...
View ArticleTPS53659: detailed datasheet
Part Number:TPS53659Hi Team,My customer is considering the specification of Intel VR13 compatible controller.I would like to obtain detailed datasheets for TPS53659 and TPS53622.I need a datasheet for...
View ArticleBQ76920: FET drive capability
Part Number:BQ76920Hello;What is the capability of the charge/discharge FET drivers? My client's high-side disconnect board uses 5 AUIRF7739L2 mosfets in parallel: 330nC max x 5 ~= 1650nC, or about...
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TPS65150: Configuration causing diode to burn
Part Number:TPS65150Dear Support,we're using the TPS65150 to drive and LCD panel. I've succesfully used it with the TPS65150EVM, only by tuning a few resistances and one delay capacitor. Since it was...
View ArticleTPS737: Avoiding damage to TPS737
Part Number:TPS737Hi,I am interested if the above use case is safe for the TPS73733DCQR or if it can cause damage to it.Device setup is as follows:Vin = 5V EN = Vin (5V)Vout (3.3V) may also be powered...
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TPS56121: TPS56121 feedback loop compensations values and bode plots
Part Number: TPS56121Hello everyone,I have a question about the compensation tool (www.ti.com/.../sluc263) for feed feedback loop design. I have redesigned my circuit based on 50kHz Fco and 56-degree...
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TPS62810-Q1: Redundant 1V Supply?
Part Number: TPS62810-Q1I'm working on implementing a series of redundant supplies for a safety critical application. Ultimately, I'd like each individual rail to be OR'ed but at the low voltages some...
View ArticleTPS92638-Q1: Unused Output With Resistor Causing False Fault In Slow Increase...
Part Number: TPS92638-Q1Hi Team,I have a 7 string LED project.I was informed that "for the unused channel output of TPS92638, connect a proper resistor to GND to avoid any false fault", but, how do I...
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TPS65916: reset issue with AM5716
Part Number:TPS65916Hello,On my board I have a SItara AM5716 and its PMIC TPS659162RGZR.Below I show the schematics about PMICand reset section of SitaraAM5716_MCLK is a 20MHz clock and SYS_WARMRESETn...
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TPS63020: behavior in power save mode
Part Number:TPS63020Hi team,Could you please explain in detail the behavior in Power Save Mode? Is it what we expect? Thanks!Buck mode: the waveform of L2 pin in green circle in particular VIN= 5V, VO=...
View ArticleTPS63070: Wide Vin, 2A Buck-Boost, any other options?
Part Number:TPS63070Hello team,I'm trying to find a buck -boost solution with below requirements, looks like TPS63070 is the only option, and in this case 2A would be hitting the limits. Do we have any...
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BQ30Z554-R1: BQ30z55 updater software
Part Number:BQ30Z554-R1Dear TI Expers,My customer want to know if TI has updater software of BQ30Z55DBTR-R3, similiar as below sw of BQ40z50-R1. Could you share me this sw for BQ30z55 if it exist ?...
View ArticleREF34-Q1: Comparison of Long term stability
Part Number:REF34-Q1Hi Team,My customer is asking question about long term stability of REF34-Q1.In REF34-Q1, it is described long term stability as 25ppm@1000hr, but other suppliers device shows its...
View ArticleTPS55165-Q1: How to calculate power consumption and improve EMI
Part Number:TPS55165-Q1Hi team,My customer is interested in TPS55165-Q1 and asking followings, can you support those?(1) In case of converter type of device, it would be generally used like adding gate...
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