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  • OPA549: OPA549 Internal losses

    Part Number: OPA549 Tool/software: Used in a circuit with ±24 V supply and 8 A DC current into 1.25 Ω. It is not known why the thermal shutdown is activated at about 4 A DC. The fin temperature of the package only rises to about 60°C. …

  • OPA549: ENABLE/STATUS (E/S) Pin issue

    TI Thinks Resolved
    Part Number: OPA549 Hi Team, My customer has some questions. Could you kindly answer the below quesitons? ① What's the meaning of disable/enable time in the datasheet? After Enable get high, It takes 1us for OPA549 to output the signal? ②　Is there…
    • Answered

  • Is the OPA549 pad connected to V-?

    Resolved
    Other Parts Discussed in Thread: OPA549 It seems that the contents described in the operational amplifier OPA549 data sheet and the actual operation of the product are not consistent, so please check. In the POWER SUPPLIES section of the OPA549 data sheet…
    • Resolved

  • OPA549: Getting more current than I I intended to provide

    Part Number: OPA549 Hello, I am building a battery charger and discharger, and I am using a OPA549 chip to supply current to the battery to charge and discharge the battery. Below is the schematic I am using currently. I have a reference voltage of 12…
    • Answered

  • RE: OPA549-HIREL: Device Footprint Does Not Appear to Leave Room for Upper Bound of Lead Tolerance (OPA549MKVC)

    Resolved
    Hello Michael, I apologize I was out of office. Thank you so much for getting back to me on this. It is extremely helpful to confirm our suspicions here. I will work with our layout house to utilize the blue notes you provided and generate a new footprint…

  • OPA549: Question of CAD Format

    Part Number: OPA549 Hello, this is SEONG YEON KIM. I have two questions about the parts below. : OPA549S, OPA549MKVC I downloaded the CAD Format of OPA549S( TO-OTHER (KVC) ) from https://www.ti.com/product/OPA549#cad-cae-symbols, in "View options" what linked…

  • INA250: Instability with OPA549 with INA250 in feedback loop

    Part Number: INA250 Other Parts Discussed in Thread: OPA549 Hi there, I am trying to create a bipolar transconductance amplifier using the OPA549 as the current driver and the INA250 as shown in the circuit diagram below. The output of the OPA549 goes…
    • Answered

  • OPA549: Thermal Model

    Resolved
    Part Number: OPA549 Hi Team I have read the topics related to paralleling the OPA549 and plan to use this design in order to build a V/I converter connected to an Arbitrary signal generator in order to generate a current shape with 25Apk and a width of…
    • Resolved
    • Answered

  • OPA549-HIREL: MSL not applicable to package type (KVC)

    Resolved
    Part Number: OPA549-HIREL OPA549MKVC datasheet and TI website indicate that MSL is not applicable to its package type (KVC). Since it has a mold compound, I do not understand why it is N/A.
    • Resolved

  • RE: OPA549-HIREL: OPA549-HIREL for ultrasonic transducer

    Hi Hector, sami assaad said: that the primary side will draw minimum 380mA even if no load ; right? I changed the primary inductance to 570uH and the minimum current without the ultrasonic transducer's load will be approx. ±600mApk. sami assaad…

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