Design an automotive QR flyback constant current source with 7.5VDC~20VDC input and 25V1A output

YAN tingdong

Other Parts Discussed in Thread: UCC28C40-Q1

Hello Mr./Ms,

I'm looking for a QR flyback pwm controller to convert 12V battery voltage to drive a series of 1A LEDs, the output voltage is from 18V to 25V. I searched in TI QR pwm controller products, but found no current source controller. Could you please help to find one?

Thanks and Best regards!

over 4 years ago

0 Yunsheng Qu over 4 years ago

TI__Genius 9790 points

Hi, Tingdong

I assigned a expert to study your request, please wait for the feedback.

BR,

Yunsheng

0 Aidan Davidson1 over 4 years ago in reply to Yunsheng Qu

TI__Intellectual 2640 points

Hello!

I highly recommend checking out the UCC28C40-Q1 for your application! Check out this preliminary design I worked up using our WEBENCH Power Designer tool: https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=46CA5A80FCC529D8

The WEBENCH tool has the options to tweak your design based on your design need, whether you prefer a balanced, low-cost, or high-efficiency design. If the initial design I worked up (using the balanced option) isn't quite what you're looking for, try tweaking the options in the tool to get closer to your ideal schematic!

Thanks for reaching out, I hope this information helps!

Aidan Davidson

Power management

Power management forum

Design an automotive QR flyback constant current source with 7.5VDC~20VDC input and 25V1A output