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  • LM431: Pin orientation

    TI Thinks Resolved
    Part Number: LM431 Hi Team, Good day. I am posting this inquiry on behalf of the customer. Regarding the part number LM431ACZ/NOPB, TO-92 package. In the datasheet Pin Configuration (Pin orientation) and Functions referred in page number 3 are different…

  • LM431: Higher ripple on AC/DC power supply output?

    TI Thinks Resolved
    Part Number: LM431 Other Parts Discussed in Thread: TL431 Team, Customer is using the LM431 (LM431BIM3/NOPB) on an AC/DC (PFC flyback: 1Ph 230V AC to 24V DC 5A with PFC voltage: 390V). The LM431 is used for the feedback sensing on the secondary side.…
    • Answered

  • LM431 Junction Temperature

    Resolved
    Other Parts Discussed in Thread: LM431 Hello Support Team, My customer is aksing what is Tj of LM431 since there is no description on the datashhet. I guess TI does not have Ti value to share with customer and Tj should be calcurated by customer basied…
    • Resolved

  • LM431: REF431 (2.495V) is used as a clamping diode, what is the max. I_KA at 1V and 100°C

    TI Thinks Resolved
    Part Number: LM431 Other Parts Discussed in Thread: TL431 Hello, I have a circuit challenge. The voltage should be limited at a high-impedance ADC input without influencing the high-impedance measurement signal. The problem should be solved with a shunt…
    • Answered

  • LM431: Difference between LM431AIM3 and LM431AIM3/NOPB

    Resolved
    Part Number: LM431 Dear Team, Is the only difference between LM431AIM3 and LM431AIM3/NOPB the availability of RoHS support? My understanding is that there is no difference in the respective characteristics of both products. Is my understanding about that…
    • Resolved
    • Answered

  • LM431: Junction-to-ambient thermal resistance - Test Board Used

    Resolved
    Part Number: LM431 Hello TI Team, Checking the datasheet of part LM431AIM3X/NOPB , I found the R θJA (Junction-to-ambient thermal resistance) value on section 6.4 Thermal Information. However, it did not mentioned anything about the test board used…
    • Resolved
    • Answered

  • LM431: Vref vs Ta curve

    Resolved
    Part Number: LM431 Hi Team, Does LM431 have Vref vs. Ta curve like below? Regards,
    • Resolved

  • TIDA-01606: Reg Topology of TL431/LM431 used in the Gate driver card

    Part Number: TIDA-01606 Other Parts Discussed in Thread: LM431 , TIDA-01160 , , TL431 We have chosen isolated boost supply for gate driver with reference to TI Design (TIDA-10606 Gate Driver), Attached the TI Reference schematic In the design, LM431 have been…
    • Answered

  • LM431: LM431BIM3N1C vs LM431BIM3/NOPB

    Resolved
    Part Number: LM431 Hello. In our project, which is on mass production stage already, we applied LM431BIM3N1C. Now LM431BIM3N1C is NRND-device, and it's replaced by LM431BIM3/NOPB. What are the HW differences between these two devices, and what are the…
    • Resolved
    • Answered

  • LM431: Anode to cathode voltage(VCA) in comparator mode operation

    Resolved
    Part Number: LM431 Other Parts Discussed in Thread: TL431 , Can someone help me to get the anode to cathode voltage of LM431A in comparator mode of operation? Thanks in advance. Basil
    • Resolved

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