F:\\\271\346\270\361\312\351\\00 LED driver\\LF Series\\LFU

Constant current LED Drivers
For outdoor use
LFU-20C Series, 20Watt
FEATURES:
Constant current output
Universal AC input range
Active power factor correction
Short circuit and over voltage protections
Designed to worldwide safety standards for lighting
Cooling by free air convection
Class , no FG
100% burn-in test
2 year warranty
Ⅱ
Model
Input voltage
(Vac)
LFU20-C350
LFU20-C500
90-264
LFU20-C700
Output voltage
(Vdc)
Output current
(mA)
Output power
(W)
Min.
Max.
350
28
57
20
500
20
40
20
700
14
29
20.3
ELECTRICAL
Input
Parameters
Symbols
Test Conditions / Comment
Min.
Typ.
Max.
Units
Input voltage
Vin
--
90
--
264
Vac
Input frequency
Fline
--
47
--
63
Hz
Input current
Iin
Full load, Vin =230Vac
--
--
0.13
A
Inrush current
Iinrush
Cold start, Vin =230Vac
--
--
35
A
Power factor
PF
70%~100% load, Vin =230Vac
--
0.9
--
PF
η
Full voltage, full load
--
84
--
%
Ton_delay
Cold start, power on
--
--
2
S
LFU20-C350
332
350
368
mA
LFU20-C500
475
500
525
mA
LFU20-C700
665
700
735
mA
Efficiency
Turn-on delay time
Output
Output current
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Iout
Page: 1 / 4
Date: 07/17/2015
Constant current LED Drivers
For outdoor use
LFU-20C Series, 20Watt
ELECTRICAL
Output
Parameters
Output voltage
No Load Output
Voltage
Symbols
Test Conditions / Comment
Min.
Typ.
Max.
Units
LFU20-C350
28
--
57
V
LFU20-C500
20
--
40
V
LFU20-C700
14
--
29
V
LFU20-C350
--
--
68
V
LFU20-C500
--
--
48
V
LFU20-C700
--
--
34
V
Vout
VNO-Load
Line regulation
Iout-line
Vin from 90Vac to 264Vac
--
--
3
%
Load regulation
Iout-load
Vout from min. To max.
--
--
3
%
Iovershoot
Turning Power ON
--
--
10
%
Iripple
---
--
40%Io
--
mAp-p
--
Vin =115Vac, output load≥50%
--
--
20
%
Output Current
Overshoot
Ripple & Noise
THD
Protection
Overvoltage
120% typical of max. output voltage
Short circuit
Hiccup mode, it will recover automatically after fault condition is removed
Environment
Storage
Ambient operating
temperature
Maximum case
temperature
Operating relative
humidity
MTBF
Tstorage
Humidity: 5% RH to 95% RH
-40
--
+85
℃
Ta
Startup at rated voltage
-25
--
+70
℃
Tc
Hot-spot on case
--
--
+80
℃
Ha
Non condensing
10
--
95
%
400
--
--
kHrs
TMTBF
Full load, 220Vac input,
25
℃
ambient temperature
Dimension(LxWxH)
118.0 x 35.0 x 26.0mm
Safety / EMC
Safety standards
UL8750, EN61347-1, EN61347-2-13
EMC
EN55015, EN61000-3-2, EN61000-3-3, EN61000-4-2, 3, 4, 6, 8, 11, EN61547
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Page: 2 / 4
Date: 07/17/2015
Constant current LED Drivers
For outdoor use
LFU-20C Series, 20Watt
ELECTRICAL
Notes: 1.Unless otherwise specified, all the above parameters are measured at ambient temperature of 25
and Vin = 230Vac, rated load.
2.Ripple & Noise are measured at 20MHZ of bandwidth by using a 12” twisted pair-wire terminated with a
0.1μF & 47μF parallel capacitor;
℃
MECHANICAL
Unit: mm
RECOMMEND INSTALLATION
BLOCK DIAGRAM
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Page: 3 / 4
Date: 07/17/2015
Constant current LED Drivers
For outdoor use
LFU-20C Series, 20Watt
ELECTRICAL CURVE
DERATING CURVE
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STATIC CHARACTERISTIC CURVE
Page: 4 / 4
Date: 07/17/2015