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Product Attributes

Introduction

The PLED Unidirectional Series (PLEDxUx Series) open LED protectors provide a switched electronic shunt path for individual open-circuit failed LEDs. This ensures that even if a single LED in the string fails open, the remaining LEDs in the string will continue to operate. It also provides reverse battery or reverse power supply polarity protection. PLED Unidirectional Series devices are designed to improve reliability in outdoor LED lighting applications such as street lights, outdoor signage, aircraft runway lighting, roadside warning lights, etc. PLED Unidirectional Series devices are compatible with 1W, 2W, and 3W LEDs with a nominal forward characteristic of 3V, and are available in two SMT package options: DO-214AA and QFN. The thin CSP of the QFN is ideal for high-density PCB applications.

Features

• Fast switching
• Reverse battery/power supply protection
• Auto-reset after power cycling
• Available in thin, small-footprint QFN and standard DO214AA packages
• Compatible with industrial lighting environments
• IEC 61000-4-2 ESD: 30kV (air), 30kV (contact)
• ESD protection for data lines per IEC 61000-4-2 (IEC801-2)
• Compatible with PWM frequencies up to 10kHz
• RoHS compliant and halogen-free
• Recognized by UL 497B as an isolating loop circuit protector

Applications

• Street lights
• Outdoor signage
• Aircraft runway lighting
• Roadside warning lights