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XC9401 Datasheet PDF - Torex Semiconductor

Part Number XC9401
Description Off-line Controllers
Manufacturers Torex Semiconductor 
Logo Torex Semiconductor Logo 



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XC9401 datasheet, circuit
XC9401 Series
Off-line Controllers for LED Lighting
ETR3201-006
GENERAL DESCRIPTION
The XC9401 series are off-line controller ICs for LED lighting. Through optimization of the external components, these ICs
can be mad e to operate i n a rang e from 85VAC to 270VAC, as well as by DC input, and a diversit y of specifications can b e
achieved by selecting components appropriate for the circuit configuration. Fixed off-time control is used for the basic control
method, and by detecting the current that flows to the external power MOSFET, the current that flows to the LED is monitored
to provide a stable power supply for LED lighting. Two product series differing by function type are available, the XC9401A
type and the XC9401B type.
The circuit configuration of type A is designed for the power factor, achieving a high power factor by synchronizing the LED
current to the inp ut current (sine wave). In this circu it config uration, a high-c apacity, high- withstand volt age e lectrolytic
capacitor is not necessary after the bridge rectifier circuit from the AC input. The input filter removes high frequency switching
noise from the AC line, allowing a small-capacity ceramic capacitor to be used.
Type B ho lds the pe ak curre nt due to s witching that flo ws to the extern al po wer MOSF ET const ant, enabling the L ED
current to b e kept const ant. B y ke eping th e LED curr ent constant, this circuit configuration m akes it possible to achieve a
stable light source with high efficiency.
APPLICATIONS
TYPICAL APPLICATION CIRCUITS
LED lights ( <=10W )
LED lamps
LED tube lights
LED spot lights
LED stands
(XC9401B605MR-G 100VAC Non-isolation buck Type)
100VAC
/110VAC
L1
1mH
BR1
B4S
R5
33kΩ
FEATURES
Operating Voltage :
VDD Input Voltage Range :
Fixed Off-time
:
Protection Circuits :
Dimming :
85VAC ~ 270VAC
9V ~ 15V
6.0μs
Thermal Shutdown 150oC (TYP.)
VDD Over voltage protection, VDD=18V (TYP.)
UVLO, VDD=6.5V (TYP.)
Over current protection
VISEN=0.7V (TYP.)
PWM Dimming
C1
0.1μF/250V
+ C2
10μF/250V
NF
EN/DIM
R6
33kΩ
C3
10μF/25V
ZD1
12V
D1
RF071M2S
C4
1uF/100V
VDD
GATE
ISEN
GND
R7
20Ω
L2
3.3mH
Q1
IPD60R3K3C6
R3
2.2Ω
R4
JP
Package :
SOT-26
Operating
Ambient Temperature
: -40 oC ~ +85oC
Environmentally Friendly : EU RoHS Compliant, Pb Free
LED
20Series/110mA
SOLUTION EXAMPLES
Input Voltage
Product Type Isolation / Non-Isolation Topology
Efficiency
Power Factor
100VAC / 110VAC XC9401B605MR
Non-Isolation
Buck
91%
0.6
XC9401B605MR 83%
220VAC / 240VAC
XC9401A605MR
Isolation Fl
yback
82% 0.9
0.6
220VAC / 240VAC XC9401B605MR
Non-Isolation
Buck
87%
0.6
DC / 12VAC
XC9401B605MR -
XC9401B605MR -
Buck
Buck-Boost
88%
86%
-
-
*Due to dispersion of constant values of external components, the above values may be deviated.
Please understand that the above are typical values. For details, refer to the XC9401 Series Application Notes.
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XC9401 equivalent
XC9401
Series
ELECTRICAL CHARACTERISTICS
XC9401 Series, Type A
PARAMETER
SYMBOL
CONDITIONS
VDD Voltage Range
ISEN Voltage
VSINE Voltage Range (*2)
UVLO Detect Voltage
UVLO Release Voltage
UVLO Hysteresis Width
Supply Current (*5)
Stand-by Current (*6)
VDD Overvoltage Protection Voltage
VDD Overvoltage Protection
Release Voltage
VDD
VISEN
VSINE
VUVLO
VUVLOR
VUVLOH
IDD
ISTB
VOVP
VOVPR
9
VISEN=SWEEP (*1), VSINE =1V 0.2644
GND
VDD=SWEEP (*3) 5.5
VDD=SWEEP (*4) 6.5
VUVLOH=VUVLOR - VUVLO -
VDD=VEN/DIM=15V -
VDD=15V, VEN/DIM=GND,
VSINE=GND
VDD=SWEEP (*3) , VEN/DIM=VDD 17
VDD=SWEEP (*4), VEN/DIM=VDD 15.5
MIN.
TYP.
-
0.2783
-
6.5
7.5
1.1
250
- 225
18
16.5
MAX.
15
0.2922
1.8
7.5
8.5
-
300
280
19
17.5
UNITS
V
V
V
V
V
V
μA
μA
V
V
Ta=25 oC
CIRCUIT
VDD Overvoltage Protection
Hysteresis Width
VOVPH
VOVPH=VOVP - VOVPR -
1.5 -
V
VDD Overvoltage Protection
Discharge Current (*7)
IOVP VDD=19V -
30 - mA
GATE “H” ON Resistance
GATE “L” ON Resistance
OFF Time (*9)
Minimum ON Time
Current Limit Voltage (*10)
Thermal Shutdown Temperature (*11)
Thermal Shutdown Release
Temperature
Thermal Shutdown Hysteresis Width
PWM Dimmer Delay Time1 (*12)
PWM Dimmer Delay Time2 (*13)
EN/DIM “H” Voltage
EN/DIM “L” Voltage
EN/DIM Bias Current
RGATEH
RGATEL
tOFF
tONMIN
VLIM
TTSD
TTSDR
THYS
tPWMDIM1
tPWMDIM2
VEN/DIMH
VEN/DIML
IEN/DIMH
IGATE = -10mA
RGATEH = (VDD-VGATE) / IGATE
VISEN=1V, R1=300
RGATEL= VGATE / IR1 (*8)
VISEN=0.4V, VSINE=1V -
VISEN=1V -
VISEN=SWEEP, VSINE=1.4V 0.65
-
-
VEN/DIM=2.2V to GND
VEN/DIM=GND to 2.2V
GND
VEN/DIM=15V -
2 58
- 5-
6 - μs
0.2 - μs
0.70
0.95
V
- 150 -
oC
130 -
oC
20 - oC
- 0.3 4.0 μs
100 140 200 μs
2.2 - 15.0 V
- 0.4 V
- 32 μA
Unless otherwise stated, GND standard, VDD=13V, VEN/DIM=VDD, VISEN=GND, VSINE=5.5V
(*1) ISEN pin voltage measured at start of GATE pin switching.
(*2) Indicates VSINE pin voltage at which OFF TIME 6μs switching becomes possible.
(*3) VDD pin voltage measured when GATE pin=L occurs.
(*4) VDD pin voltage measured when GATE pin=H occurs.
(*5) Indicates internal supply current when “H” level is input into EN/DIM pin and all circuits are activated. (When not switching.)
(*6) Indicates internal supply current when “L” level is input into EN/DIM pin and the switching circuit is stopped.
(*7) Indicates the current that discharges the capacitance between the VDD and GND pins at VOVP.
(*8) Please refer to P.7 “CIRCUIT”.
(*9) May not be fixed at 6μs when UVLO is detected or during DIM signal control.
(*10) When the current limit voltage VLIM is exceeded, off time is extended to about 140μs to prevent element damage.
For details, refer to the operation description.
(*11) To protect the IC from thermal destruction, thermal shutdown activates when the chip temperature reaches 150oC and forcibly sets the GATE
pin voltage to “L”. When the chip temperature falls to 130oC, operation resumes.
(*12) Time from attainment of EN/DIM “L” voltage until GATE pin=L.
(*13) Time from attainment of EN/DIM “H” voltage until GATE pin=H.
5/19

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Information Total 19 Pages
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