Fairchild offers unique IGBT technology specifically designed for HID headlamp applications. As a global automotive semiconductor supplier, Fairchild has more than 50 years of history, including a product portfolio for the automotive power market, leading IGBTs, MOSFETs, ignition IGBTs, injector drivers, gate drivers and power modules for engine management. Electrical Power Aided Steering (EPAS), PTC heaters and other systems that require high quality and high efficiency components.
HID lighting system building block series 1
Of course, all of Fairchild's automotive products meet the requirements of the Automotive Electronics Council (AEC) Reliability Test Requirements (AEC-Q100, AEC-Q101), if applicable, and also meet customer-specific reliability and parametric testing requirements.
FL7734 Tangent Dimmable Single Stage LED Driver, a highly integrated LED controller solution for low cost, high reliability LED lighting solutions from 5 W to 30 W. The FL7734 enables designers to quickly achieve superior lighting quality design and high dimmer compatibility while integrating power factor correction (PFC) circuitry to meet power factor (PF) and harmonic distortion (THD) requirements.
HID lighting system building block series 2
The FL7734 solution uses Fairchild's unique active dimmer drive technology to eliminate significant flicker or shimmer, and achieves more than 90% compatibility with leading edge, trailing edge and digital dimmers from a variety of manufacturers. The solution fully meets NEMA SSL 7A-2013 and ENERGY STAR® standards and offers flexible programmable dimming curves and input current management.
James Lee, technical marketing manager at Fairchild, said: "The FL7734 driver is compatible with a wide range of dimmers to simplify LED lighting design. LED bulbs and tangent dimmer suppliers vary, so excellent tangent dimmable bulbs must be Compatible with a variety of different dimmers. We developed FL7734 for this purpose."
The FL7734 is a flyback (or buck-boost) pulse width modulator (PWM) controller that uses advanced primary-side regulation (PSR) technology to minimize the need for external components, thus reducing BOM. To meet stringent LED brightness control requirements, the FL7734 uses Fairchild's innovative TRUECURRENT® PSR technology for compact constant current (CC) variation with less than ±1% difference over a wide line voltage range.
Like the FL7733A, which Electronica introduced in November last year, the FL7734 can be used in a wide range of luminaire products, including GU10, candlelight, A19 and PAR30/38 bulbs, downlights and panel lights, indoor and outdoor luminaires. Both solutions achieve high-precision CC control and less than 1% variation over the entire universal line input operating range.
To meet safety regulations and ensure long-term reliability, the FL7734 adds comprehensive protection features including dual overvoltage protection for open VS and open VDD conditions, output diode shorts, and open/short protection for current sense resistors and control Each pin of the IC. The device also features LED open, LED short, and over temperature shutdown protection. The FL7734 is available in a 16-pin small outline package (SOP).
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