This document describes an isolated, power factor corrected, very high efficiency LED driver (non-dimmable) designed to drive an LED string of 30 V at a current of 500 mA (both nominal) from an input voltage range of 90 to 265 VAC. The design employs an active ripple filter to achieve less than 30% output ripple. A reference board DER-284 was used with active ripple filter daughter board.
The LED driver uses a LNK417EG device from the LinkSwitch-PH family of ICs. This integrated controller and 725 V MOSFET dramatically reduces the complexity and component count of the solution.
This document contains the LED driver specification, schematic, bill of material, and transformer documentation and typical performance characteristics.
| Manufacturer | Power Integrations |
|---|---|
| Category | Lighting |
| Sub-Category | LED Drivers - AC / Offline |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
230 V Universal |
| Outputs and Type |
1 Isolated
|
| Current Out |
500 mA
|
| Voltage Out (Max) |
33 V
|
| Efficiency @ Conditions |
>86%, 163 ~ 265 VAC, @ 33 V
>86%, 156 ~ 265 VAC, @ 30 V >85%, 122 ~ 265 VAC, @ 27 V |
| Features |
Current Limit (Adj. or Fixed)
Dimming Control Frequency Jitter for EMI Open Circuit Protection PFC PWM Interface Short Circuit Protection Thermal Protection |
| Switching Frequency |
66 kHz
|
| Component Count + Extras |
50 + 0
|
| Design Author |
Power Integrations
|
| Application / Target Market |
Lighting: LED Commercial Lighting
Lighting: LED Home Lighting Lighting: LED Signage |
| Voltage In |
90 ~ 265 VAC
|
| Power Factor |
>0.9
|
| Standard(s) |
EN55015 B conducted EMI
IEC 61000-3-2 Class C IEC 61000-4-5 Ringwave |
| Main I.C. Base Part |
LNK417
|
| Date Created By Author | 2011-07 |
| Date Added To Library | 2025-11 |
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