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XC9404 Datasheet PDF - Torex

Part Number XC9404
Description Offline Controller
Manufacturers Torex 
Logo Torex Logo 



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XC9404 datasheet, circuit
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
85~270VAC
CX1 BR1
C1
L2
R1
ZD1
RVdd1
RVdd2
C4
RL1
D1
R4
R2
R3 C2
IC
VINS
VDD
ZVS
C3 GATE
Vsine
ISEN
GND
Pri LT1
C5 R7
D3
Sec
D2
AUX
R5
R6
Rg
RL2
Q1
CY1
Rs
+
C7
LED
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XC9404 equivalent
ELECTRICAL CHARACTERISTICS
XC9404 Series
PARAMETER
SYMBOL
CONDITIONS
MIN.
VDD Voltage Range
Start-up Threshold
Voltage
UVLO Detect Voltage
VDD Over Voltage
Protection
Start-up Current
Supply Current
GATE "H" level
Voltage
GATE "L" level
Voltage
VDD
VST
VUVLO
VDD_OVP
IST
IDD1
VGATEH
VGATEL
VSINE=VINS=3V,VISEN=2V,VZVS=0V
The voltage which VDD pin current becomes 200uA or
more while VDD is increasing.
VSINE=VINS=3V,VISEN=2V,VZVS=0V
The voltage which VDD pin current becomes 200uA or
less while VDD is decreasing.
VSINE=VINS=3V,VISEN=VZVS=0V,VDD=20V
The voltage which GATE Voltage becomes "L" while
VDD is increasing.
VSINE=VINS=3V,VISEN=2V,VZVS=0V
VDD=VST-0.5V
VSINE=VINS=3V,VISEN=1.2V,VZVS=0V
VDD=20V15V
VSINE=VINS=3V,VZVS=VISEN=0V
VDD=20V12V
VSINE=VINS=3V,VZVS=VISEN=0V,VDD=20V15V
VISEN is increased until GATE “L” occurs, 20 mA is
applied to the GATE pin, and the GATE pin voltage is
measured.
GATE clamp Voltage
(VSINE/VINS) maximum
Value
(VSINE/VINS) minimum
Value
Minimum On Time
Short Circuit
Protection Voltage
ZVS Leakage Current
ZVS Acceleration
Threshold Voltage
ZVS CV Threshold
Voltage
ZVS Over Voltage
Threshold Voltage
VGATEC
VSINE=VINS=3V,VZVS=VISEN=0V,VDD=20V
(VSINE/VINS)_
max
(VSINE/VINS)_
min
tONMIN
VOCP
VSINE=VINS=3V,VZVS=0V,VDD=20V15V
The voltage which GATE voltage becomes "L" while
VISEN is increasing.
VSINE=0V,VINS=3V,VZVS=0V,VDD=20V15V
The voltage which GATE voltage becomes "L" while
VISEN is increasing.
VSINE=VINS=3V,VZVS=0V,VISEN=2V
VDD is raised from 0V to 20V, and the GATE signal
pulse width is measured.
VSINE=3V,VINS=0.5V,VZVS=VISEN=0V,
VDD=20V15V
The voltage which GATE voltage becomes "L" while
VISEN is increasing.
IZVS VDD=20V15V,VZVS=4V
VZVSA
VZVSN
VOVP
VSINE=1V,VINS=3V,V6=1.5V,VDD=20V15V
The V6 voltage is raised, and the voltage at which the
GATE pin voltage oscillation period slows is
measured.
VSINE=1V,VINS=3V,V6=2.8V,VDD=20V15V
The V6 voltage is raised, and the voltage at which the
GATE pin voltage oscillation stops is measured.
VSINE=VINS=3V,VZVS=VISEN=0V,VDD=20V15V
The voltage which GATE voltage becomes "L" while
VISEN is increasing.
9
18
7.5
28
-
-
10
-
12
0.8
-
500
3.0
-
1.4
3.8
5.6
TYP.
-
19
8.0
32
-
1000
-
-
13
1.0
-
750
4.0
2
1.8
4.0
6.0
MAX.
21
20
8.5
34
20
1300
-
1
15
1.2
0.2
1000
-
8
2.2
4.4
6.9
XC9404
Series
UNITS
V
Ta=25
CIRCUIT
-
V
V
V
μA
μA
V
V
V
V
V
ns
V
μA
V
V
V
5/16

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Information Total 16 Pages
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