Short tube inner packaging dimensions: L*W*H=255*170*80mm;
Short tube outer packaging dimensions(with six inner packaging boxes):
L*W*H=375*280*270mm;
Long tube inner packaging dimensions: L*W*H=580*200*100mm;
Long tube outer packaging dimensions(with two inner packaging boxes)
：
L*W*H=600*215*220mm;
Long tube outer packaging dimensions(with three inner packaging boxes)
：
L*W*H=600*215*325mm.
DESIGN & APPLY CONSIDERATIONS
1) Typical Application Circuits
(Analogue Dim)
(Analogue D im )
21
+Vin
GND
+Vin
22,23
21
14,16
+LED
KC24H-xxxX3
22,23
KC24H-xxxX3
14,16
+LED
9,11
4
Last LED
-LED
1st LED
GND
2,3
9,11
4
-LED
1st LED
Last LED
2xNPN
2,3
(PWM Di m/ON/OFF)
0.5~1Ω
(PWM D im/ ON /OFF)
(Figure 3)
Note:
Series Application
(Figure 4) Parallel-series Application
1. If input>40V, the input port must add an external capacitor (
≥
47μF/100V),to protect the module from damaged by voltage spikes.
2.
“-LED”
can’t connect GND, or the module may be damaged.
3. The module is a step-down driver, please refer to
“Input
VS Output” at page 3.
4. When the mode works in the high-voltage input-area and 1LED load, it is normal about Frequency hopping because of small duty cycle. Output current
is constant. Not affect the normal use.
2
) Digital Dimming Control
PWM Digital Control Signal
1
0
Output Current
1
0
The copyright and authority for the interpretation of the products are reserved by MORNSUN
PWM Digital Control Signal
1
0
Output Current(LED appears bright)
1
0
1
0
PWM Digital Control Signal
Output Current(LED appears dim)
KC24H
A/1-2012
Page 4 of 5
For the rated frequency PWM dimming, the output current of driver matters to the pulse width of the PWM signal.
and the numerate please refer to
the following formula:
I
o_set
=
(DT-0.75)
Io_set refers to the expected output current value (mA) , Io_norm refers to the rated output current (mA) , D refers to the pulse width of the PWM
signal (%),T refers to the cycle of the PWM signal (ms).
Note: The formula only supplies as a reference, and the output current may be a little deviation with different load. The Ton(min) of PWM signal
must be greater than 0.75ms, or the driver can’t operate normally. It is natural for the driver to generate an audibly noise in dimming process, because
the frequency of the control circuit is within human audibly range (20Hz~20KHz). In order to avoid the human eye can observe the LED flashes, the
PWM dimming frequency is recommended to set above 100Hz.
PWM curve(Vin=24V,5LEDs):
PWM Frequency VS Output
current(D=50%)
600
500
400
300
200
100
0
T
I
o_norm
KC24H-1000X3
KC24H-1200X3
Output current VS Pulse width of the
KC24H-1000X3
PWM signal (f=200Hz)
KC24H-1200X3
1000
900
800
700
600
500
400
300
200
100
0
20
30
40
50
60
70
80
Pulse width of the PWM signal
90
80
100
125
150
175
PWM Frequency
200
250
(Figure 5) PWM Frequency VS Output current(D=50%)
3) Analogue Dimming Control And Application Example
(Figure 6) Output current VS Pulse width of the PWM signal (f=200Hz)
Output current
Output current
100%
+Vin
GND
0-10V
On/Off
(Optional)
5K6
22,23
2,3
5K1
14,16 +LED
KC24H-xxxX3
9,11
21
4
-LED
1st LED
Last LED
0%
Output Current
Analogue Input Voltage
0.2V
1V
2V
3V
4V
5V
15V
Voltage Control(0-15V max)
(Figure 7) Analogue dimming circuit
4) No parallel connection(output) or plug and play
Note:
(Figure 8) Output current VS analogue input voltage
1. Operation under minimum load 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. In this datasheet, all the test methods of indications are based on corporate standards.
4. Only typical models listed, other models may be different, please contact our technical person for more details.
5. Our company offer custom products.
6. Specifications subject to change without notice.
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
Http://www.mornsun-power.com
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