Onsemi NCL30188 | Demoboard NCL30188FLYGEVB

Beschreibung

The NCL30188FLYGEVB Evaluation Board is an Ac-Dc power factor corrected flyback controller targeting isolated and non−isolated buck-boost/SEPIC constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact, space efficient designs.

Eigenschaften

• Quasi−resonant Peak Current−mode Control Operation
• Constant Current Control with Primary Side Feedback
• Tight LED Constant Current Regulation of ±2% Typical
• Power Factor Correction
• Line Feedforward for Enhanced Regulation Accuracy
• Low Start−up Current (13 A typ.)
• Wide Vcc Range
• 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp
• Robust Protection Features♦ OVP on VCC♦ Programmable Over Voltage / LED Open Circuit Protection♦ Cycle−by−cycle Peak Current Limit♦ Winding Short Circuit Protection♦ Secondary Diode Short Protection♦ Output Short Circuit Protection♦ Shorted Current Sense Protection♦ User Programmable NTC Based Thermal Foldback♦ Thermal Shutdown♦ Vcc Undervoltage Lockout♦ Brown−out Protection
• Pb−Free, Halide−Free Product
• Latching−off (NCL30188A) or 4−s Auto−recovery(NCL30188B) Protection Modes

Typische Anwendungen

• LED Drivers/Power Supplies
• LED Drivers/Power Supplies
• LED Light Engines
• Integral LED Bulbs and Tubes

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers