Summary
* For Constant Current, the board must be modified as described on page 8 of the user guide. *
Streetlight applications require that the power supply designed to power an LED lamp must have high efficiency and at least an equivalent lifetime in order to guarantee maintenance-free operation during the life of the LED.
This application note describes the characteristics and features of a 130 W demonstration board (EVL130W-STRLIG), tailored to an LED power supply specification for street lighting. The circuit is composed of two stages: a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT.
The strengths of this design are very high efficiency, wide input mains range (85-305 VAC) operation and long-term reliability.
Specifications
| Manufacturer | STMicroelectronics |
|---|---|
| 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 |
2.7 A
|
| Voltage Out (Max) |
48 V
|
| Efficiency @ Conditions |
>92%, 230V in, Full Load
>91%, 115V in, Full Load |
| Features |
Over Current Protection
Over Voltage Protection PFC Short Circuit Protection Soft Start Under Voltage Protection, Brown-Out |
| Switching Frequency |
130 kHz
|
| Component Count + Extras |
134 + 2
|
| Design Author |
STMicroelectronics
|
| Application / Target Market |
Lighting: LED Street Lighting
|
| Voltage In |
85 ~ 305 VAC
|
| Power Factor | |
| Standard(s) | |
| Main I.C. Base Part |
L6562A
L6599 |
| Date Created By Author | |
| Date Added To Library | 2020-06 |
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