The STEVAL-ILL053V2 evaluation board implements a 130 W LED power supply 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 its very high efficiency; wide input mains range (85-305 VAC) operation and long-term reliability.
Because mean time between failures (MTBF) in power supplies is typically affected by the high failure rate of common electrolytic capacitors, the STEVAL-ILL053V2 evaluation board offers an innovative design approach using film capacitors from EPCOS in place of electrolytic capacitors.
Thanks to the high efficiency achieved, only a small heatsink for the PFC stage is needed, while the other power components implement surface mount technology (SMT), which significantly lowers costs. The STEVAL-ILL053V2 evaluation board also provides protection against overload, short-circuit and open-loop in each stage, and overvoltage protection on the input, with auto-restart.
Manufacturer | STMicroelectronics |
---|---|
Category | Lighting |
Sub-Category | LED Drivers - AC / Offline |
Eval Board Part Number | 497-18363-ND |
Eval Board Supplier | STMicroelectronics |
Eval Board |
Normally In Stock
|
AC Voltage |
Universal
|
Outputs and Type |
1 Isolated
|
Current Out |
2.7 A
|
Voltage Out (Max) |
48 V
|
Efficiency @ Conditions |
>92%, 135 ~ 305 VAC, 48V @ 2.7 A
|
Features |
Open Circuit Protection
Over Current Protection Over Voltage Protection PFC Short Circuit Protection Soft Start |
Switching Frequency |
120 kHz
|
Component Count + Extras |
134 + 9
|
Design Author |
STMicroelectronics
|
Application / Target Market |
Lighting: LED Street Lighting
|
Voltage In |
85 ~ 305 VAC
|
Power Factor |
>0.8 @ 230 VAC
>0.95 @ 100 VAC |
Standard(s) |
EN55015
EN55022 B conducted EMI EN60950 IEC 61000-3-2 Class C |
Main I.C. Base Part |
L6562AT
L6599AT |
Date Created By Author | 2018-12 |
Date Added To Library | 2019-07 |