Triac Dimmable Offline LED Driver CXLE82122 is an adaptive constant off-time AC/DC buck controller for dimmable LED luminaries designed to be compatible with triac dimmers

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The CXLE82122 is an adaptive constant off-time AC/DC buck controller for dimmable LED luminaries designed to be compatible with triac dimmers. The CXLE82122 provides a constant current for illuminating high power LEDs and includes a triac dim decoder. The LED brightness is modulated by the scheme of PWM-dimming. The CXLE82122 includes a bleeder circuit to ensure proper triac operation by allowing current flow while the line voltage is low to enable proper firing of the triac. A passive PFC circuit ensures good power factor by drawing current directly from the line for most of the cycle, and provides a constant positive voltage to the buck regulator. Additional features include thermal shutdown, current limit and input supply under-voltage lockout.

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Triac dim decoder circuit for LED dimming nqb嘉泰姆

Application voltage range 80VAC – 277VAC nqb嘉泰姆

Capable of controlling LED currents greater than 1A nqb嘉泰姆

Low quiescent current nqb嘉泰姆

Programmable off-time allows for constant ripple current nqb嘉泰姆

Input supply under-voltage lockout nqb嘉泰姆

Thermal shutdown nqb嘉泰姆

Over current protection nqb嘉泰姆

No visible flicker nqb嘉泰姆

MSOP-8 packagenqb嘉泰姆

   应用范围 返回TOPnqb嘉泰姆

Retro Fit Lamps nqb嘉泰姆

Solid State Lighting nqb嘉泰姆

LED modules such as LED spots, down-lights nqb嘉泰姆

LED strings suitable for retail displays, etc.nqb嘉泰姆

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