Search tips
Showing 27 results View by: Thread Post Sort by
    Answered

  • LM5021: Voltages of VCOM and VSS are not constant. Trap in the soft-start region.

    Resolved
    Part Number: LM5021 Hi, I am using LM5021 to build wide-input dc voltage range for auxiliary power supply(24V,50W) by flyback converter. Operation condition was 150V input and checking the each of LM5021 pins. VIN and VCC are good and well regulated…
    • Resolved

  • LM5021: LM5021 applied Two-tube Forward Design Consult

    TI Thinks Resolved
    Part Number: LM5021 Other Parts Discussed in Thread: PMP10215 , , PMP40281 , UCC256402 Hi, TI expert, Currently need to make a two-tube forward design with 300~1000V input Voltage, 24V output Voltage and 200W output Power. Suppose LM5021 is the suitable…
    • Answered

  • LM5021: Is there any limitation for cap value on SS pin?

    Resolved
    Part Number: LM5021 Hi, Team. Q1. is there any maximum value Customer can use the cap value on SS pin? Q2. for disabling skip cycle, what customer has to do is only "having 125mV" on CS pin? any other thing customer has to care ?
    • Resolved

  • LM5021: LM5021 CS pin Voltage threshold variation

    TI Thinks Resolved
    Part Number: LM5021 Hi, Team. i've been asked by Customer as below. Q1. how much voltage threshold of CS pin would vary in 0℃~125℃ as MIN and MAX? Q2.could you give us the graph which shows the voltage threshold of CS pin would vary?
    • Answered

  • UCC28730-Q1: Iout 10Alimit ucc28730 in web bench desinger

    Resolved
    Part Number: UCC28730-Q1 Other Parts Discussed in Thread: UCC28730 , LM5021 Dear TI I'm developing a 200W power source. Ask if ucc28730 device development is possible. The design specifications of the 200w power supply are as follows. -80~120Vin -14Vout…
    • Resolved

  • LM5021: Can customer utilize TINA TI to simulate how much phase margin would be there in specific schematic ?

    TI Thinks Resolved
    Part Number: LM5021 Other Parts Discussed in Thread: TINA-TI , TL431 Hi, team. i have been asked by customer as below, please tell us Q1.Can customer utilize TINA TI to simulate how much phase margin would be there in specific schematic ?
    • Answered

  • UCC28630: flyback controller recommendation for on board charger

    Resolved
    Part Number: UCC28630 Other Parts Discussed in Thread: LM5021-Q1 , , LM5022-Q1 , TIDA-01344 , LM5022 Hi, my customer is designing on board charger and need to choose a flyback controller. The requirement is: 1. automotive qualified 2. current control mode…
    • Resolved

  • WEBENCH® Tools/UC2843: Can I use UC2843 to get output power of 80Vdc and 15Amps? In webench I cant simulate that design

    TI Thinks Resolved
    Part Number: UC2843 Other Parts Discussed in Thread: UCC28180 , LM5021 , PMP10215 , UCC28950 , PMP8606 , UCC28070 , UCC28720 , UCC2895-Q1 , UCC3895 , PMP9622 , PMP7246 , UCC28951-Q1 , PMP20657 , TIDA-01407 , PMP6712 , PMP8740 , TIDA-00779 , UCC28951 Tool/software: WEBENCH…

  • RE: UCC28700-Q1: Use of secondary winding for voltage regulation instead of the auxiliary winding?

    Viktorija, Thanks for the interest here. This is an interesting question. I don't think we've tested this before but I don't see why it wouldn't work. Can you help me understand why this approach is of interest? Since it's not isolated…

  • LM5021: LM5021 diodes

    TI Thinks Resolved
    Part Number: LM5021 Hello, I am trying to use LM5021 to convert 220V AC into 5V DC.I have one doubt from the reference design of LM5021. What is the purpose of D2 and D4? According to me only D4 should be there because when MOSFET (Q1) turn OFF then D4…

Didn't find what you are looking for? Post a new question.