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PDF STEVAL385LEDPSR Data sheet ( Hoja de datos )
| Número de pieza | STEVAL385LEDPSR | |
| Descripción | 100W LED street lighting application using STLUX385A | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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STEVAL385LEDPSR
100 W LED street lighting application using STLUX385A
Features
STLUX385A based
High efficiency (92%)
Primary side controlled
Up to 100 W (100 V at 1 A or 200 V at 0.5 A)
Single isolated output suitable for LED
connection.
Wide input voltage range: 90 V to 265 V AC
Adjustable LED current and dimming
Output resolution: 11-bit equivalent.
IDLE mode power consumption: < 200 mW
Real-time fault detection and protection
(e. g.: short- or open circuit)
Remote control via DALI, 0 - 10 V, UART
Data brief
Description
The STEVAL385LEDPSR demonstration board is
a complete and configurable solution that
efficiently controls a single dimmable high
brightness LED string using the STLUX385A
digital controller.
The LED efficiency is high during all stages of
dimming and the STEVAL385LEDPSR can
achieve a 92% efficiency during full load while
maintaining a low < 200 mW power consumption
during idle periods.
The STLUX385A device handles a primary side
regulated power conversion stage as well as all
the supported communication links.
The power conversion stage consists of a PFC
regulator followed by a “Zero Voltage Switching”
(ZVS) LC resonant stage. The high precision
dimming is adjusted using a primary side
regulation (PSR) control technique.
The LED brightness can be dimmed by controlling
the LED current down to a very low level.
The STEVAL385LEDPSR demonstration board
provides all the physical communication
interfaces such as a DALI, insulated 0-10 and
UART. All the communication is managed by the
STLUX385A device. The UART interface and
STLUX385A flexibility allow to quickly connect the
STEVAL385LEDPSR to alternative interfaces
such as Wi-Fi, power line modems, Bluetooth®
and Zigbee®.
December 2013
DocID025724 Rev 1
For further information contact your local STMicroelectronics sales office.
1/20
www.st.com
1 page  
2 Schematic diagrams
Figure 2. PSR-ZVS demonstration board schematic - STLUX385A - top
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Figure 8. PSR-ZVS demonstration board schematic - serial interfaces
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11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet STEVAL385LEDPSR.PDF ] | |
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