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  • DRV103: Choosing higher cap values for bypass/decoupling capacitor

    Part Number: DRV103

    Tool/software:

    Can I use a higher bypass/decoupling capacitor instead of the recommended 22uF? I am thinking of using 100uF 35V tantalum or aluminum electrolytic. The DRV103 will be used to drive a solenoid.

    This 100uF would actually…

  • LMR38020-Q1: Bypass Capacitor

    Part Number: LMR38020-Q1

    Hi Sir,

    Could you please give guidance for how to calculate the input bypass capacitor for power supply to meet the ISO 16750-2 4.4 ( Superimposed alternating voltage).

    Regards,

    CHINNAN C V

  • TMS320F28377D-Q1: Bypass Capacitor of VDDIO-VDDOSC-VDDA

    Part Number: TMS320F28377D-Q1
    Other Parts Discussed in Thread: TMDSCNCD28379D, LAUNCHXL-F28379D, C2000WARE

    Dear Sir,

    As I am designing hardware of TMS320F28377, I want to consult on the Bypass circuit design of VDDx.

    Usually in my experience I will using…

  • ADC128D818: Internal Reference on Pin 1?

    Part Number: ADC128D818

    I'm surprised that I can't measure the internal reference voltage on Pin 1. As it is recommended to put a bypass capacitor there, I expected to read the reference voltage when put a DMM on Pin 1 (VREF). But i read 0 mV. Is this…

  • TPS4H160-Q1: Power and ground protection

    Part Number: TPS4H160-Q1

    Hi,

    I'm designing a pcb which is supposed to generate 24V outputs controlled by a microcontroller. As those outputs go to external devices, I want to protect my circuit against external problems such as short circuits polarity…

  • LM5050-1: Short circuit protection

    Part Number: LM5050-1

    Hi. I plan to use this FET controller for load sharing purposes (2x 10Ah batteries in parallel), and also for protection in case of a short in battery. The total current consumption will be 60-160A.

    So, in case of short, to protect…

  • RE: TS3A27518E-Q1: supply current and capacitor placement

    Miles,

    The TS3A27518E-Q1 datasheet characterizes the device at 3 different voltage supply levels 3.3 V, 2.5 V, and 1.8 V with +/- 10% tolerance because system power supplies are not perfect. 

    Supply current for a switch IC will vary passed on the voltage…

  • What decoupling, bypass, or off voltage rail capacitor should I use for a Signal Switch?

    Part Number: TS3DS10224

    The customer is considering to use TS3DS10224. According to TS3DS10224 datasheet, it seems 0603 caps are required to those VCC.

    Would you please check the recommended capacitance?

     

     

  • RE: TS3USB221E - Bypass Capacitors

    Waqas,

    All of our TS3USBXXXX devices like the TS3USB221E device can be operated without any external components.  However, It is good practice with any IC to place bypass capacitors as close to the IC power supply pin as possible to help reduce noise…

  • LM2907 Bypass capacitor

    Good morning, I am using a LM2907 to convert a 3khz (+/- 12V) signal to a 10V signal.  My power supply is 12Vdc.  Is there a recommended bypass capacitor for the power supply?

    Regards,

    Frank  

  • TS3USB221 PSRR?

    Other Parts Discussed in Thread: TS3USB221

    Hello,

    Our customer uses the TS3USB221, has a question.

    How about the PSRR characteristic of this device?

    I think that the power supply have no impact on signal integrity.

    Regards,

    Naoki Aoyama

  • TS3A4741 Vcc bypass capacitance value

    Other Parts Discussed in Thread: TS3A4741

    on my behalf of the customer:

    Customer design in TS3A4741 for a robotic application:

    In this part typical application, bypass cap use 0.1pf, that should be 0.1uF?

  • AM335x Design Rules for Bypass Capacitors placed on DDR_VREF rail

    In Figure 7-39 on datasheet (SPRS717I), there are bypass capacitors of 0.1μF each placed on DDR_VREF rail.

    Are there other design rules for these capacitors?

    In "7.7.2.2.2.6 Bulk Bypass Capacitors" and "7.7.2.2.2.7 High-Speed (HS) Bypass Capacitors…

  • Grounding Principles

    In a previous blog on supply bypassing, I cautioned that poor bypassing could increase distortion of an amplifier. A reader, Walter, asked an interesting question… where should you connect the ground of a bypass capacitor to avoid problems?

    This…

  • Bypass Capacitors… yes, but why?

    Everyone knows that op amps should have power supply bypass capacitors located near the IC’s terminals, right? But why? Why, for example, is an amplifier more apt to oscillate without proper bypassing? The reasons will increase your understanding and…

  • RE: REF30XX precision voltage reference decoupling

    Anthony,

    Your 0.1uF decoupling capacitor should be okay if it is placed near the REF3020.. I suspect that the author of this data sheet chose this value based on what was used on characterization circuit boards. Or perhaps they just wanted users to take…

  • Bypass Capacitor Calculation in reference to App Report SCAA048

    In the Application Report SCAA048 - October 2001 Filtering Techniques: Isolating Analog and Digital Power.....

    it mentions computing the inductance of power supply wiring.  Specifically would this be the inductance of the trace from say, the output of…

  • Re: TPS65930 "internal use" pins and bypass caps?

    Hi Jon,

    Yes, these are for internal use. Please have caps for these pads. You can refer this document for checking your schematic - http://focus.ti.com/lit/an/swca081/swca081.pdf

     

    Regards,

    Gandhar.