IR's Fully-Integrated, Protected High-Voltage IC with PFC Simplifies Multi-Lamp Circuits for Advanced Fluorescent Linear Ballasts.EL SEGUNDO, Calif. -- International Rectifier, IR([R]) (NYSE NYSE See: New York Stock Exchange :IRF IRF Interferon Regulatory Factor IRF International Religious Freedom IRF Institut for Rationel Farmakoterapi (German) IRF Inherited Rights Filter (Novell) IRF Inherited Rights Filter ), a world leader in power management technology, today introduced the IRS An abbreviation for the Internal Revenue Service, a federal agency charged with the responsibility of administering and enforcing internal revenue laws. 2168D fully-integrated and protected high-voltage integrated circuit (HVIC HVIC High-Voltage Integrated Circuit ) for advanced electronic linear fluorescent lamp ballasts which incorporate active power factor correction Power factor correction (PFC) is a technique of counteracting the undesirable effects of electric loads that create a power factor that is less than 1. Power factor correction may be applied either by an electrical power transmission utility to improve the stability and efficiency (PFC PFC abbr. private first class Noun 1. PFC - a powerful greenhouse gas emitted during the production of aluminum perfluorocarbon ). The new IC integrates PFC, ballast control and 600V half-bridge driver in a compact 16-lead SO package and features a wide range input voltage PFC to simplify complex multi-lamp circuits offering a fault counter on the current-sense pin for multi-lamp ballasts and cycle-by-cycle protection on the PFC side for high reliability. "In addition to integrating many features for maximum programmability and protection, the IRS2168D provides a wide range input to address the challenge of designing complex multi-lamp electronic ballast circuits, rounding out our portfolio of non-dimmable fluorescent ICs," said Stephane Ernoux, IR product manager. The IRS2168D's PFC circuitry provides a high power factor (PF) of 0.995, low total harmonic distortion The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental. (THD ThD abbr. Latin Theologiae Doctor (Doctor of Theology) Noun 1. ThD - a doctor's degree in theology Doctor of Theology ) of less than 10% and DC bus regulation within a tolerance of +/- 2.5%. The IC has many programmable features including those for pre-heat time, pre-heat frequency, run frequency, and ignition ramp. Protection features are provided for half-bridge over-current, PFC over-current, lamp failure-to strike, and filament failures in addition to other protection features such as closed-loop ignition current regulation, DC bus under-voltage reset and an automatic restart function. The IC also features an integrated bootstrap diode, fixed internal 1.6-microsecond half-bridge deadtime, voltage-controlled oscillator (VCO (1) (Voltage Controlled Oscillator) An oscillator that can be tuned over a wide range of frequencies by applying a voltage (tuning voltage) to it. Used in many applications such as radio tuners, VCOs are less costly than crystal oscillators, but not as stable. ), end-of-life window comparator pin, lamp removal/auto-restart shutdown pin and an internal 15.6V Zener diode clamp on Vcc. IR's new ballast control IC utilizes IR's advanced high-voltage IC process which incorporates next-generation high-voltage level-shifting and termination technology to deliver superior electrical over-stress protection and higher field reliability. Data sheets for the devices are available at http://www.irf.com/whats-new/nr070129.html. Availability and Pricing Pricing for the IRS2168DSPbF and IRS2168DSTRPbF is US$ 1.33 each in 10,000-unit quantities. Production orders are available immediately. The devices are RoHS compliant and prices are subject to change. About International Rectifier International Rectifier (NYSE:IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com. Trademark Notice IR([R]) is a registered trademark of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders. |
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