12W dimmable LED driver suggestion
Posted by: Dhruvit Bhimani
on
Hi Everyone,
I'm looking for suggestions on a driver IC that can deliver 100 mA constant current as an offline LED driver.
My application is to build a non-isolated, low-cost 12W LED driver for a smart LED panel light. Ideally, the IC should:
- Support non-isolated offline topology
- Deliver constant current output of 100 mA
- Be capable of driving 9–12 LEDs in series (~9V, 100 mA per LED)
- If possible, support PWM dimming control (optional, but preferred)
The design is for a cost-sensitive smart light, so compact and minimal external components would be beneficial.
Appreciate your help!
Thanks,
Dhruvit
コメント
Hi Dhruvit,
One other option is the LytSwitch-0, I would recommend reviewing it if you are interested, please see resources on how to design at this link. It also includes some of the design that uses this device.
LYTSwitch-0 | Power Integrations
Regards,
Maynard
Hi Dhruvit,
I would recommend checking our LinkSwitch-TN2. Unfortunately, we do not have existing design for TN2 that implements constant-current.
However, we do have design guide, which help you design our LinkSwitch-TN2 in a constant current implementation for LED application, please see figure 11, page 13 of AN-70 design guide.
Regards,
PI-Nanoe