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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[ CXLE82122 ]"
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产品概述 返回TOP
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.
产品特点 返回TOP
Triac dim decoder circuit for LED dimming
Application voltage range 80VAC – 277VAC
Capable of controlling LED currents greater than 1A
Low quiescent current
Programmable off-time allows for constant ripple current
Input supply under-voltage lockout
Thermal shutdown
Over current protection
No visible flicker
MSOP-8 package
应用范围 返回TOP
Retro Fit Lamps
Solid State Lighting
LED modules such as LED spots, down-lights
LED strings suitable for retail displays, etc.
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Lighting Driver |
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Part NO. |
Vin(V) min. |
Vin(V) max. |
FSW (kHz) |
Dimmi- mg(kHz) |
Vsen- se(mV |
RON (Ohm) |
Internal MOSFET |
Note |
Package |
|
6.5 |
36 |
500 |
-- |
120 |
0.3 |
Y |
Digital/Analog Dimming Control,OTP, SS, MultiTopology LED Driver, UVP, OCP, OVP |
TDFN3X3-12 MSOP-10(FD) |
|
|
7 |
36 |
420 |
0.1~1 |
100 |
-- |
N |
Digital/Analog Dimming Control, OTP, Open LED Protection |
MSOP-8(FD) SOT-23-5 |
|
|
7 |
36 |
Choke setting |
0.1~1 |
100 |
0.5 |
Y |
Digital/Analog Dimming Control,OTP, Open/Shorted LED Protection |
SOT-23-5 |
|
|
7 |
36 |
Choke setting |
0.1~1 |
100 |
0.5 |
Y |
Digital/AnalogDimming Control,OTP, Open/Shorted LED Protection |
SOT-23-5 |
|
|
7.2 |
12 |
Offtime setting |
-- |
300 |
-- |
N |
AC Input Range(80VAC–277VAC),PFC,Triac Dimmable Offline LED Driver,UVP,OTP,OCP |
MSOP-8/ MSOP-10 |
|
|
7.2 |
12 |
Off time setting |
-- |
239 |
-- |
N |
AC Input Range(80VAC–277VAC),Offline LED Lamps,UVLO, OTP, OCP |
SOP-8 |
|
|
2 |
5.5 |
-- |
-- |
ADJ |
-- |
N |
DimmableLinear LED controller with High PF |
SOT-23-5 |
|
