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  • UCC28600EVM-65W: Iq and shunt voltage device replacement questions

    TI Thinks Resolved
    Part Number: UCC28600EVM-65W Other Parts Discussed in Thread: UCC28600-Q1 , LM4041-N-Q1 , , TL431 Dear team, Recently my customer wants to evaluate our UCC28600-Q1, and they have three questions as below, could you please help answer them? Thank you…

  • RE: TL431: How TL431 can generate 2.5V reference voltage from a input voltage

    Hi Van, Thanks for your question. Can you please name the pins for on TL431 in the schematic for clarification? My thoughts below What is the collector and emitter current of Q1 when this event occurs? TL431 is being used in an open loop format…
    • Answered

  • TLV3502-Q1: The window comparator circuit block is giving voltage dips at input as well as at the output during hysteresis region

    Resolved
    Part Number: TLV3502-Q1 Other Parts Discussed in Thread: TLV3502 , TL431 , OPA2863 Hi, I am facing a issue, with TLV3502 comparator circuit block. When the high threshold comparator latches the output to 0 logic and high logic I get voltage dips at…
    • Resolved
    • Answered

  • TL431: TL431BQDBZR - About Machine model (MM)

    Resolved
    Part Number: TL431 Hi Team, Could you please let us know Machine model (MM) of TL431BQDBZR? I understand that Machine model (MM) of TL431BQDBZRQ1(Q1 grade) is ± 200V. I guess that MM of TL431BQDBZR(Non Q1 grade) is same so ± 200V. Is my understanding…
    • Resolved
    • Answered

  • RE: Load dump protection in 48V battery system

    Resolved
    Hi Prithvi, The TL431 is in comparator mode with a trip threshold of 17V. Below 17V the TL431 cathode is VDD. Above 17V the TL431 cathode is 2V regardless of the load dump transient voltage. The cathode also has the IN4734A to help out in case of any…
    • Answered

  • LM4050-N-Q1: Cload value

    Resolved
    Part Number: LM4050-N-Q1 Other Parts Discussed in Thread: TL431 , Dear team, Before TL431 have requirement for the Cload. I am not sure whether our 4050 have the same requirement. Below schematic, Rs=49.9k and C94/Cload=0.001uF, is this ok? …
    • Resolved
    • Answered

  • UCC28750:ucc287506dbvr Over Voltage Protection

    Resolved
    Part Number: UCC28750 Other Parts Discussed in Thread: TL431 Tool/software: Hello Ti I designed the attached flyback circuit using the Ucc287506dbvr integration. I designed the circuit as 72-144V input 12V-6A output. When I test the circuit under no load…
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    • Answered

  • TL431: TL431BQDBZR - About WBS(Wire bond shear) & WBP(Wire bond pull) of Reliability test result

    Resolved
    Part Number: TL431 Hi Team, We would like to know the WBS & WBP of Reliability test result of TL431BQDBZR(non Q1). We can get the WBS & WBP of Reliability test result of TL431BQDBZRQ1(Q1) at the following URL. However, WBS & WBP of TL431BQDBZR…
    • Resolved

  • UCC28740: UCC28740

    Part Number: UCC28740 Tool/software: Based upon WBSchematicUCC28740DR.svg (attached) there is never any DRV output. The only waveform is on pin 1. Attached Vicor VI-J51_N3.pdf
    • Answered

  • UCC2808-1: two questions about how to use

    Resolved
    Part Number: UCC2808-1 Other Parts Discussed in Thread: TL431 , LM311 , LM211 , LM211-Q1 Hi Experts, I have two questions about how to use the UCC2808-1. First, please tell me about the duty ratio adjustment method (circuit). For example, what kind…
    • Resolved

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