KC24W-XXXK Series
CONSTANT CURRENT GREAT POWER BUCK LED
DRIVER
PRODUCT PROGRAM
FEATURES
●
High efficiency up to 96%
●
Ultra wide range voltage input (5.5-48
VDC)
●
Drive current:300/350/500/600/700mA
●
Output Power：10/12/18/21/25W
●
Output current accuracy (± 2%)
●
Output current stability(±1%)
●
Low Ripple & Noise(<100mV)
●
With large capacitive loads(1000μF)
●
Continuous short circuit protection
●
AC-DC, EMC recommended circuit
●
Lead wire package, simple and
convenient
●
Waterproof Level：IP67
●
RoHS Compliance
Model
KC24W-300K
KC24W-350K
KC24W-500K
KC24W-600K
KC24W-700K
Input Voltage(VDC)
Normal
24
24
24
24
24
Range
5.5-48
5.5-48
5.5-48
5.5-48
5.5-48
Output
Current
Voltage
(VDC)
(mA)
3.3-36
3.3-36
3.3-36
3.3-36
3.3-36
0-300
0-350
0-500
0-600
0-700
Efficiency (%,max)
96
96
96
96
96
RoHS
COMMON SPECIFICATIONS
Item
Utmost input voltage
Recommended input voltage
Input filter
Output voltage range
Vin=48V
Vin=5.5~48V,1~10LEDs
See the product program
±
2
Vin=48V, Vo=3.3V~36V
Vin=24V, 5LEDs
-40
°C
to+71
°C
ambient
±5
±1
700
±
0.015
96
Vin=48V，1~ 10LEDs
100
%
mW
%/°C
%
mV
3.3
2
Test condition
≤10
seconds
Min.
5
5.5
24
Typ.
Max.
55
48
Units
VDC
Capacitor(1μF)
36
4
VDC
APPLICATIONS
KC24W-XXXK series is a high-power
LED driver design for the step-down constant
current source. With high efficiency, wide
input voltage range, high-temperature
environment, functional and so on.
It can be widely used in backlight and
12V, 24V, 36V landscape lighting, special
lighting controls, commercial lighting, street
lighting, home lighting, automotive lighting
and other lighting systems. Use of lead type
package, allowing customers to use more
convenient.
Input-Output voltage drop
Output current range
Output current accuracy
Output current stability
Internal power dissipation
Temperature coefficient
Efficiency
Ripple & Noise (Vp-p)
Short circuit protection
Operating temperature range
Storage temperature range
Lead temperature
Continuous, automatic recovery
300mA / 350mA
500mA/ 600mA/ 700mA
-40
-40
-55
≤10
seconds
85
71
105
265
100
60
1000
320
MIL-HDBK-217F(+25°C)
370
1,500,000
Plastic (UL94-V0)
22.10*12.55*8.50
8.5
mm
g
420
°C/W
μF
kHz
Hours
°C
MODEL SELECTION
KC24W-350K
Sp e cia l M a r k
Ou tp u t Cu r r e n t
Pa cka g e Style
In p u t Vo lta g e
Pr o d u ct Se r ie s
Maximum case temperature
Thermal resistance
Maximum capacitive Load
Operating frequency range
MTBF
Case Material
Dimensions
Weight
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development
center, Science Ave., Guangzhou Science City,
Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
EMC SPECIFICATIONS
EMI conducted
RFI conducted
ESD
R/S
EFT
Surge
C/S
EN55015
Power port( refer to Figure 3)
class B( refer to Figure 3)
level 3 contact±6KV
level 3 (10V/m)
level 2 (±1KV)
level 2 (±1KV)
level 3 (10Vr.ms)
perf. Criteria B
EN55015 CISPR22
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
perf. Criteria A
perf. Criteria B ( refer to Figure 3)
perf. Criteria B ( refer to Figure 3)
perf. Criteria A
E-mail:
info@mornsun.cn
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
KC24W -XXXK
2013.02.26-A/3 Page 1 of 4
INPUT VS OUTPUT
Input
voltage(VDC)
(VDC)
48
36
24
20
15
12
5.5
48
36
24
20
15
12
5.5
48
36
24
20
15
12
5.5
Output voltage
range(VDC)
3.3-36.0
3.3-32.0
3.3-21.0
3.3-17.0
3.3-13.2
3.3-10.0
3.3-4.0
3.3-36.0
3.3-32.0
3.3-21.0
3.3-17.0
3.3-13.2
3.3-10.0
3.3-4.0
3.3-36.0
3.3-32.0
3.3-21.0
3.3-17.0
3.3-13.2
3.3-10.0
3.3-4.0
Output constant
current (mA)
300
300
300
300
300
300
300
500
500
500
500
500
500
500
700
700
700
700
700
700
700
Output power
(W Max)
10.80
9.60
6.30
5.10
3.96
3.00
1.20
18.00
16.00
10.50
8.50
6.60
5.00
2.00
25.20
22.40
14.70
11.90
9.24
7.00
2.80
Input voltage
(VDC)
48
36
24
20
15
12
5.5
48
36
24
20
15
12
5.5
Output voltage
range(VDC)
3.3-36.0
3.3-32.0
3.3-21.0
3.3-17.0
3.3-13.2
3.3-10.0
3.3-4.0
3.3-36.0
3.3-32.0
3.3-21.0
3.3-17.0
3.3-13.2
3.3-10.0
3.3-4.0
Output
constant
current
350
350
350
350
350
350
350
600
600
600
600
600
600
600
Output power
(W Max)
12.60
11.20
7.35
5.95
4.62
3.50
1.40
21.60
19.20
12.60
10.20
7.92
6.00
2.40
TYPICAL APPLICATION CIRCUITS
+Vin
1
4
+Vin
GND
1
KC24W-XXXK
2
+Vout
PTC
PTC
4
+Vout
GND
KC24W-XXXK
2
3
-Vout
3
-Vout 1st LED
Last LED
1st LED
Last LED
(Figure 1) Series Application
(Figure 2) Parallel-series Application
If it is necessary to protect LED in actual application, you could connect a PTC to the input of every channel or all channels, as shown in Figure 2.
Note: The negative output terminal can’t connect GND, or the module may be damaged.
EMC RECOMMENDED CIRCUIT
L1
Vi
+
n
C1
Tvs
G ND
C5
C2
C3
+Vou t
RECOMMENDED PARAMETER
Components
Tvs
Specifications
SMC51A,1500W（Bringtking）
CD53-82μH（CEAIYA）
470μF/100V（CapXon）
225K/50V 1210 X7R
(TORCH)
104K/50V 0805 X7R
(TORCH)
105K/50V 1210 X7R
(TORCH)
102K/2000V 1210 (TDK)
（choose）
KC24 W -XXXK
C4
Lo a d
-Vou t
L1
C1
C2
C3
C4
(Figure 3)
EMI/EMC
recommended circuit
C5
Table 1
(Figure 3) Recommended parameter
L1
+Vin
C1
C2
1
4
+Vout
KC24W-XXXK
2
3
-Vout
1st LED
Components
C1
C2、C4
Specifications
225K/50V 1210
×7R
（TORCH）
104K/50V 1210
×7R
（TORCH）
PI043-131MT
（SHENZHEN
CEAIYA）
GND
Last LED
C4
L1
(Figure 4) EMI/RFI conducted EN55022 Class B recommended circuit
Table 2
(Figure 4) Recommended parameter
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
KC24W -XXXK
2013.02.26-A/3 Page 2 of 4
L1
+Vin
C1
1
4
+Vout
KC24W-XXXK
Components
Specifications
CD53-33μH
(SHENZHEN CEAIYA)
105K/50V 1210
×7R
（TORCH）
L1
C1
GND
2
3
-Vout
1st LED
Last LED
(Figure 5) EMI/RFI conducted EN55022 Class A recommended circuit
Table 3
(Figure 5) Recommended parameter
AC INPUT RECOMMENDED CIRCUIT
AC IN
D4
5VAC
~
32VAC
C1
D1
1
+
C2
4
+Vout
Components
C1
Specifications
X1 Safety capacitor,
0.1μF /300VAC
(QIYA)
100μF/63V
Electrolytic capacitor
(CapXon)
Rectifier diode
IN4007 1A/1000V
D0-41(PANJIT)
KC24W-XXXK
2
3
1st LED
Last LED
-Vout
-
D3
+
D2
-
C2
D1、
D2、
D3、
D4
AC IN
(Figure 6)AC input recommended circuit
Table 4
(Figure 6) Recommended parameter
TYPICAL TEMPERATURE CURVE
Temperature Derating Graph
Operating Temp.(
C
)
(Figure 7)
CHARACTERISTICS CURVE
Vin=12V
100
90
Vin=24V
100
90
Efficiency(%)
Efficiency(%)
80
70
60
50
1
2
3
4
5
6
7
8
9
10
11
12
KC24W-300K
KC24W-350K
KC24W-500K
KC24W-600K
KC24W-700K
80
70
60
50
1
3
5
7
9
11 13 15 17 19 21 23
KC24W-300K
KC24W-350K
KC24W-500K
KC24W-600K
KC24W-700K
Output Voltage(V)
Output voltage(V)
Vin=36V
100
90
Efficiency(%)
80
70
60
50
0
3
6
9 12 15 18 21 24 27 30 33 36
Output voltage(V)
Efficiency(%)
KC24W-300K
KC24W-350K
KC24W-500K
KC24W-600K
KC24W-700K
100
90
80
70
60
50
0
3
6
Vin=48V
KC24W-300K
KC24W-350K
KC24W-500K
KC24W-600K
KC24W-700K
9 12 15 18 21 24 27 30 33 36
Output voltage(V)
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
KC24W -XXXK
2013.02.26-A/3 Page 3 of 4
OUTLINE DIMENSIONS & PIN CONNECTIONS
Pin
1(red)
2(blac k)
3(white)
4(yellow)
FOOTPRINT DETAILS
Out
Comments
+Vin
DC Supply
Do not c onnec t to -Vout
GND
LED Cathode Connec tion
-Vout
LED Anode Connec tion
+Vout
(Front View)
8.50[0.335]
100.00±5.00
[3.937
±0.197
]
10.00[0.394]
22.10[0.870]
17.50
[0.689]
2
7.62[0.300]
1
(B ot t om View)
Note:
Unit: mm[inch]
Input
Lead internal diameter:1.35mm;
Lead external diameter:2.10mm;
℃
Lead dimensions:UL1569 300V 105
Output
Lead internal diameter:0.76mm;
Lead external diameter:1.60mm
General tolerances:
±0.25mm[±0.010inch]
3
12.55[0.494]
4
PACKAGE DIAGRAM
( EPE packaging)
EPE packaging dimensions:
L*W*H=340*340*22.5 mm
Packaging quantity: 56pcs
Inner packaging box dimensions: L*W*H=365*350*105mm
Packaging quantity: 224pcs
Outer packaging box dimensions: L*W*H=390*360*245 mm
Packaging quantity: 448pcs
(Inner packaging box)
Note:
1. Operation under minimum output voltage will not damage the converter; However, they may not meet all specification listed.
2. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
3. Only typical models listed, other models may be different, please contact our technical person for more details.
4. In this datasheet, all the test methods of indications are based on corporate standards.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
KC24W -XXXK
2013.02.26-A/3 Page 4 of 4
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