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TPS92692: TPS92692 Design question

James Su5
Expert 1340 points
Part Number: TPS92692

TPS92692 Max Output Voltage is 65 V,

I want to do it by DC6.4V to DC130V /0.22A LED driver project and no dimmer function request.

Please give me a reference Schematics especially MOSFET / Schottky Diode / inductance value or Calculation tool, thanks!

B/R James

  • 0
    TI__Mastermind 18890 points

    Hi James,

    I am sorry but we do not have a reference design or schematic for this.  We do have tools and soft-ware in the following page:  http://www.ti.com/product/TPS92692/toolssoftware

    With the output voltage higher than the max voltage of the TPS92692.  All feedback point of to the IC has to be kept below 65V otherwise we can damage the part.  Thus, the main issue is the current feedback (CSP, CSN) pin has to be on the low side voltage of the LED's so the voltage does not exceed 65V.  Depending on the input voltage, this feedback will be between ground and the LED's Cathode side for Boost mode and VIN and LED's Cathode for boost to batterey.  In addition, you will not need the PMW'ing FET since there is no dimming function and PWM will not be possible with 130V ouput.

    Thanks Tuan