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LED Driver CKT design.

hardik rawal
Intellectual 260 points
Other Parts Discussed in Thread: TPS92210, PMP6023

Here i am designing LED Driver with below requirement and looking for your suggestion and  best options.

1.INPUT VOLTAGE RANGE  -70-140 VDC / VAC

2 OUTPUT VOLTAGE            -15 VDC

3 OUTPUT CURRENT          -1-3 Amp

4 OUTPUT CURRENT 2 (WITH DIMMING FUNCTION)      -2.5 Amp

5 SURGE PROTECTION        -1.8KV, 1.2/50 µsec

6 WORKING TEMP                 -0°C to 85°C

7 PROTECTION:Short circuit, open circuit, reverse polarity input, over voltage, under voltage, EMI/EMS proof

8 OUTPUT WATTAGE              -15VDC X 3 AMP = 45W

 

  • 0
    TI__Mastermind 26435 points
    Hi Hardik,

    Thanks for your interest in TI. At this power level, you will likely want a flyback. Flyback also works well for wider input voltage ranges such as this. For AC input, you likely want a PFC flyback to better shape the input current to achieve lower THD. Take a look at TPS92210. There is an example of 0V-10V dimming in PMP6023 which is a 25W lighting reference design that uses TPS92210.

    Best Regards,
    Ben Lough