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TPS92520-Q1: output current accuracy and calculation

zhiyuan zhang
Intellectual 620 points
Part Number: TPS92520-Q1


Hello expert,
   In my design the power coil is 47uH,current sample resistor is 0.1R.Input 30~60V,output 3~50V 0.1~1.5A.Tj -40~150C

  Could you pls share the output current accuracy and calculation for this device? 

  

  • 0
    TI__Mastermind 23626 points

    Zhiyuan,

    We clearly state that at full scale voltage which is controlled by registers, that a +/4% accuracy is ensured.  

    We actually test each part such that at full scale (1023 setpoint) it is within our tolerance of +/4%.  Here is the specifications that references that test.

    Keep in mind that this doesn't include the current sense resistor tolerance.  You need to include that in your tolerance calculations.  

    -Francis Houde