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  • UCC28019: DCM operation using UCC28019

    Resolved
    Part Number: UCC28019 Other Parts Discussed in Thread: UCC28056 , UCC2818 , UCC28070 Dear All, I wanted to know if UCC28019 can be used for DCM mode operation. If not what IC is recommended for power level of 400W max. I have seen that UCC28056 can be…
    • Resolved

  • UC2825: Protection diodes with UC2825

    Part Number: UC2825 Other Parts Discussed in Thread: UCC2818 Hi, We are doing PFC with UC2818D.We have the following diodes to protect the pins....(anode to GND, cathode to pin) PKLMT pin has a BAV102 CONNECTED (BAV102, 0.25A, 150V, Switching diode…

  • UCC28180EVM-573: Power management forum

    TI Thinks Resolved
    Part Number: UCC28180EVM-573 Other Parts Discussed in Thread: PMP31164 , UCC28180 , , UCC256404 , UCC2818 , UC3854 We have modified the UCC28180EVM similar to PMP31164 reference design except below changes: 1. Boost inductance 0.9mH 2. Frequency…

  • UCC2818A-Q1: Power Factor Correction IC Interferes with Ballast IC UBA2014

    TI Thinks Resolved
    Part Number: UCC2818A-Q1 Other Parts Discussed in Thread: UCC2818 I am using the UCC2818AQ as a Power factor correction stage in a ballast circuit. The ballast circuit is a half-bridge inverter following the PFC stage. The ballast IC IR21592 has gone…

  • UCC2818A: use of opamp for current sensing

    Part Number: UCC2818A Other Parts Discussed in Thread: UC3854 , UCC2818 Hello, I ask if it is possible to use a smaller sense resistor (about 1/10 of the calculated value) and amplify the votage across resistor by means of a differetìntial amplifier…
    • Answered

  • RE: UCC2818A-Q1: synchronization to external clock

    Resolved
    Hi Dongbao, For proper synchronization, it is important to select the UCC2818 timing components to set up the oscillator to run at a frequency that is20−30% less than the external sync signal. The accuracy of the switching frequency once the UCC2818…

  • UC1854B: Design support

    TI Thinks Resolved
    Part Number: UC1854B Other Parts Discussed in Thread: UCC2818-EP , UCC2818 Hello Team We want to design a PFC circuit using IC UC1854B. This IC do not any design support files or calculations. Please provide necessary support. Thanks Ripu…
    • Answered

  • RE: UCC28780: About flyback converter with continuous mode PFC function

    Resolved
    Hi, Tak After checking NCP1651, UCC2818 is the controller of CCM PFC to compete with. Yunsheng
    • Answered

  • UCC28180: TIDA-010081

    Resolved
    Part Number: UCC28180 Other Parts Discussed in Thread: TL431 , UCC28064A , UCC28050 , UCC2818 , UCC28056 , UCC28065 , UCC28070A Hi , I have implemened 1kW PFC stage as AC to DC with PFC Operation and its working good. in my output 100HZ ripple component…
    • Resolved

  • UCC2818A-Q1: supply from boost inductor auxiliary winding

    Part Number: UCC2818A-Q1 Other Parts Discussed in Thread: UCC2818A , UCC2818 Hi again, I tried to supply the IC with a solution similar to the one at pag.11 of the UCC2818A-Q1 datasheet: startup resistors + auxiliary winding on the boost inductor. …

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