the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. kc24rt -xxx 2012.02.26-a/4 page 1 of 5 kc24rt series constant current great power led driver rohs features product program input voltage(v) output model normal range voltage (vdc) current (ma) dimming control efficiency (%) kc24rt-300 24 5.5-48 3.3-36 0-300 pwm+analogue 96 kc24rt-350 24 5.5-48 3.3-36 0-350 pwm+analogue 96 kc24rt-500 24 5.5-48 3.3-36 0-500 pwm+analogue 96 KC24RT-600 24 5.5-48 3.3-36 0-600 pwm+analogue 96 kc24rt-700 24 5.5-48 3.3-36 0-700 pwm+analogue 96 specifications item test condition min. typ. max. units utmost input voltage 10 seconds 5 55 recommended input voltage 5.5 24 48 vdc input filter capacitor(1 f) output voltage range vin=48v 3.3 36 input-output voltage drop vin=5.5~48v,1~10leds 2 4 vdc output current range see the product program output current accuracy 2 5 output current stability vin=48v, vo=3.3v~36v 1 % internal power dissipation vin=24v,5leds 700 mw temperature coefficient -40 c to+71 c ambient 0.015 %/ c efficiency at full load 96 % ripple & noise (vp-p) 120 mv short circuit protection continuous, automatic recovery 300ma / 350ma -40 85 operating temperature range 500ma/ 600ma/ 700ma -40 71 storage temperature range -55 125 maximum case temperature 100 c maximum capacitive load 1000 f operating frequency range 320 370 420 khz mtbf mil-hdbk-217f(+25 c) 2,000,000 hours case material epoxy resin (ul94-v0) dimensions 23.86*18.10*8.00 mm weight 6 g pwm dimming and on/off control (leave open if not used) on open or 2.8v the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. kc24rt -xxx 2012.02.26-a/4 page 2 of 5 input vs output input voltage (vdc) output voltage range(vdc) output constant current (ma) output power (w max) input voltage (vdc) output voltage range(vdc) output constant current (ma) output power (w max) 48 3.3-36.0 300 10.80 48 3.3-36.0 350 12.60 36 3.3-32.0 300 9.60 36 3.3-32.0 350 11.20 24 3.3-21.0 300 6.30 24 3.3-21.0 350 7.35 20 3.3-17.0 300 5.10 20 3.3-17.0 350 5.95 15 3.3-13.2 300 3.96 15 3.3-13.2 350 4.62 12 3.3-10.0 300 3.00 12 3.3-10.0 350 3.50 5.5 3.3-4.0 300 1.20 5.5 3.3-4.0 350 1.40 48 3.3-36.0 500 18.00 48 3.3-36.0 600 21.60 36 3.3-32.0 500 16.00 36 3.3-32.0 600 19.20 24 3.3-21.0 500 10.50 24 3.3-21.0 600 12.60 20 3.3-17.0 500 8.50 20 3.3-17.0 600 10.20 15 3.3-13.2 500 6.60 15 3.3-13.2 600 7.92 12 3.3-10.0 500 5.00 12 3.3-10.0 600 6.00 5.5 3.3-4.0 500 2.00 5.5 3.3-4.0 600 2.40 48 3.3-36.0 700 25.20 36 3.3-32.0 700 22.40 24 3.3-21.0 700 14.70 20 3.3-17.0 700 11.90 15 3.3-13.2 700 9.24 12 3.3-10.0 700 7.00 5.5 3.3-4.0 700 2.80 typical application circuits 1st led last led kc24rt-xxx +vin gnd 16 1 7 9 8 (pwm dim/on/off) 10 (analogue dim) +vout -vout 1st led last led 9 8 kc24rt-xxx +vin gnd 16 1 7 (pwm dim/on/off) 10 (analogue dim) +vout -vout (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. digital dimming control pwmdigitalcontrol signal 0 1 0 1 0 1 0 1 0 1 pwmdigitalcontrol signal pwmdigitalcontrol signal output current output current(led appears bright) output current(led appears dim) 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: t i o_norm i o_set = (dt-0.6) io_set refers to the expected output current value. io_norm refers to the rated output current d refers to the pulse width of the pwm signal t refers to the cycle of the pwm signal 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 0.7ms, or the driver can t be operated 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.
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. kc24rt -xxx 2012.02.26-a/4 page 3 of 5 analogue dimming control and application example 1st led last led kc24rt-xxx +vin gnd 5k1 5k6 on/off (optional) 0-10v 16 1 9 8 7 10 0% 100% o u t p u t c u r r e n t voltagecontrol(0-15v max) 0.2v 1v 2v 3v 4v 5v 15v analogue input voltage (figure 3) analogue dimming circuit (figure 4) analogue input voltage vs output emc recommended circuit 1st led last led kc24rt-xxx +vin gnd 16 1 7 9 8 470f 1.0f (pwm dim/on/off) 10 (analogue dim) +vout -vout + 1.25mh 2.2f 1.0f smcg51 (figure 5) emi/rfi conducted en55022 recommended circuit + vin gnd +vout -vout load tvs c0 c1 c2 c3 r1 lcm vin dim gnd vo+ vo- k c 2 4 r t 2 dim * 1 (figure 6) emi/emc recommended circuit note: 1. dim pin is the module s pwm dimming pin as shown in figure 6. 2. while adding circuit ,it may extend the pwm dimming output reaction time. emi/emc standard item standard level predicate remark emi conducted en 55015 power port qualification add external circuit esd iec 61000-4-2:2001 level 2 b 4kv add external circuit surge iec 61000-4-5:2004 level 2 b 1kv add external circuit eft iec 61000-4-4:2004 level 2 b 1kv add external circuit recommended parameter components specifications tvs smcj48a,1500w bringtking lcm 6.8 h cd43 ceaiya c0 470 f/50v capxon c1 4.7 f/50v 1210 (torch) c2 2.2 f/50v 1210 (torch) c3 470pf/100v 0805 (torch) r1 680 0805(can replaced by inductance or magnetic bead)
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. kc24rt -xxx 2012.02.26-a/4 page 4 of 5 ac input recommended circuit 1st led last led kc24rt-xxx 8 9 ac in 16 1 + - +vout -vout 7 (pwm dim/on/off) - + 5vac ~ 32vac ac in + - 10 (analogue dim) 0.1f optional 100f~330f ? (figure 7) ac input recommended circuit typical temperature curve recommended reflow soldering profile operating temp.( ) c temperature derating graph 0 50 100 150 200 250 time (sec.) t e m p e r a t u r e ( c ) 60 max (>220 c) sec 220 c 10 max sec peak.temp 240 c remark: the curve applies only to the hot air reflow soldering. characteristics curv e vin=12v 20 30 40 50 60 70 80 90 100 0 3 6 9 12 15 18 output voltage(v) efficiency(%) kc24rt-300 kc24rt-350 kc24rt-500 KC24RT-600 kc24rt-700 vin=24v 20 30 40 50 60 70 80 90 100 0 3 6 9 12 15 18 21 24 27 30 output voltage(v) efficiency(%) kc24rt-300 kc24rt-350 kc24rt-500 KC24RT-600 kc24rt-700 vin=36v 20 30 40 50 60 70 80 90 100 0 3 6 9 12 15 18 21 24 27 30 33 36 output voltage(v) efficiency(%) kc24rt-300 kc24rt-350 kc24rt-500 KC24RT-600 kc24rt-700 vin=48v 20 30 40 50 60 70 80 90 100 0 3 6 9121518212427303336 output voltage(v) efficiency(%) kc24rt-300 kc24rt-350 kc24rt-500 KC24RT-600 kc24rt-700
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. kc24rt -xxx 2012.02.26-a/4 page 5 of 5 outline dimensions & pin connections 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.
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