XC9404 Datasheet, PDF (1/16 Pages) Torex Semiconductor – 85VAC ~ 270VAC

XC9404 Series
Offline Controller for LED Lighting with Power Factor Correction
ETR32008-001
■GENERAL DESCRIPTION
The XC9404 series are LED lighting offline controllers that use PFM(Pulse Frequency Modulation) control and
have a Power Factor improvement function. The operating input voltage range is 85VAC to 270VAC, and the
current is controlled on the primary side without using a Opto-coupler or secondary side control circuit. Because
LED current fluctuations caused by input voltage fluctuations and LED voltage fluctuations can be suppressed, a
stable LED lighting power supply is obtained.
A high Power Factor and low THD are attained by synchronizing the input current with the input voltage, and
operation in DCM(Discontinuous Current Mode) makes it possible to achieve high efficiency. An internal
acceleration startup circuit enables the LED lighting to illuminate quickly.
Over Voltage Protection, Over Current Protection, UVLO and Thermal shutdown are provided as protective
functions to protect the LED lighting in the event of LED Open/Short-circuiting.
■APPLICATIONS
・LED Bulb
・LED spot Light
・LED Tube
・Street Light
・Residential Lighting
・Other applications with LED Lighting
■FEATURES
Operating Voltage
Output Wattage
Power Factor / THD
Control Method
Function
Protection Function
Package
Operating Ambient Temperature
Environmentally Friendly
: 85VAC ~ 270VAC
: up to 50W
: Power Factor 0.95 or more
/ THD up to 10% attainable
: PFM control
: Opto-coupler free due to primary control
Built-in acceleration Start
Low Start up Current 20μA
: LED Open/Short protection
Over Voltage Protection
Over Current Protection
UVLO
Thermal shutdown
: SOP-8D
: -40℃ ~ +105 ℃
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUITS
L1
RVdd1
RL1
Pri
LT1
C5
R7
D3
Sec
85~270VAC
CX1
BR1
C1
L2
R1
ZD1
RVdd2
D1
C4
R4
R2
R3
C2
IC
VINS
VDD
ZVS
C3
GATE
Vsine
ISEN
GND
D2
AUX
R5
R6
Rg
Q1
RL2
Rs
+
C7
LED
CY1
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