Other Parts Discussed in Thread: TPS92512, TPS92512HV, PMP6024, UCC28811
The TPS92512EVM-001 has Vout=5-25V while the input VIN =12VDC-48VDC, my question is:
How to define the max VOUT and Why it has to be just 25V, can't it be greater?
In my design I have a power source with constant voltage Vin= 60V/1.5A and need a wide range VOUT= 20-50 V, ILED (max) = 1A . I am considering to use the TPS92512HV instead for the TPS92512. I plan to modify the TPS92512EVM-001 to achieve this output specification. I have tried the Webench simulation for the upper limit of VOUT (50V) and lower limit on 21V have got a suggested designs. Obviously the designs give different component values. I am not sure how to achieve the full VOUT range 20-50V. I will also need to control the LED with PWM and it has to be between 0-100% duty cycle.
Is this right way to go? Is there any calculation spreadsheet with the related equations available for customer usage?