led drive r kc24h-r series 201 4 .02.28- a /3 page 1 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation constant current great power buck led driver rohs features z efficiency up to 95% z ultra w ide range v oltage input (5.5-46 v dc) z drive current:300/350/500/600/700ma z output power 10/12/18/21/25w z low ripple & noise(<100mv) z with large capacitive loads(1000 f) z pwm dimming & analogue dimming z continuous short circuit protection kc24h- r s erie s i s a high-power le d driver desig n f or t h e s tep-dow n constan t curren t s ource. w it h hig h efficiency, w id e inpu t v oltag e range, high-temperature environment, functional and so on. contains a pwm dimming, analog dimming and remote shutdown capabilities. they can be widely used in backlight and 12v, 24v, 36v automotive lighting, landscape lighting, special lighting controls, commercial lighting, street lighting, home lighting and other lighting systems. selection guide model input output efficiency (%, typ), full load max. capacitive load(uf) input voltage (vdc) input current (ma) (typ.)(5leds) output voltage (vdc) output current (ma) kc24h-300r(x1/x2/x3) 24(5.5-48) nominal (range) 237 3.3-36 0-300 95 1000 KC24H-350R(x1/x2/x3) 276 0-350 kc24h-500r(x1/x2/x3) 395 0-500 kc24h-600r(x1/x2/x3) 4 74 0-600 kc24h-700r(x1/x2/x3) 553 0-700 notes: 1. for t he product model w ithout a suffix such as kc24h-300r, t his p r oduct is a 4 -pin produc t w ithout t he functions of analogue dimming and pwm dimming. 2. for the product model with a suffix x1 such as kc24h-300rx1, this product is a 5-pin product only with the function of analogue dimming. 3. for t he product model w ith a suffix x 2suchaskc24h-300r x 2, t his product is a 5-pin product only w ith t he function o f pwm dimming. 4 .for t he product model w ith a suffix x 3suchaskc24h-300r x 3, t his product is a 6-pin product w ith t he functions of analogue dimming and pwm dimming. input specifications item operating conditions min. typ. max. unit input voltage limit 10 seconds 5--55 vdc recommended input voltage 5.5 24 46 min. input-output voltage drop input voltage range 2 -- 4 internal power dissipation vin=24v, 5leds -- -- 0.7 w reverse polarity input forbid input filter capacitor filter output specifications item operating conditions min. typ. max. unit output power io:300ma -- -- 10.8 w io:350ma -- -- 12.6 io:500ma -- -- 18 io:600ma -- -- 21.6 io:700ma -- -- 25.2 output current accuracy io:300-600ma -- 3 5 % io:700ma -- 5 7 output current stability vin=46v vo=3.3v~36v -- 3 5 temperature drift coefficient -40 c~+71 c -- -- 0.015 %/ c ripple & noise* 20mhz bandwidth(vin=46v, 1~ 10 leds) -- -- 100 mvp-p over-temperature protection self-recovery after cooling output short circuit protection continuous, self-recovery
led drive r kc24h-r series 201 4 .02.28- a /3 page 2 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation note: *parallel line test method is adopted to test the ripple and noise. test with x1 probe, please see dc-dc converter application notes for specific operation methods. general specifications item operating conditions min. typ. max. unit operating temperature 300ma / 350ma -40 -- 85 500ma/ 600ma/ 700ma -40 -- 71 storage temperature -55 -- 125 operating humidity -- -- 95 % storage humidity -- -- 95 case temperature rise ta=25 c----65 lead temperature welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 operating frequency* 550 645 750 khz mtbf mil-hdbk-217f@25 1000 -- -- k hours thermal impedance -- 60 -- c /w note:* when the mode works in the high-voltage input-area and 1led load, its operating frequency will range from 100khz to 400khz. pwm dimming and remote on/off control item operating conditions min. typ. max. unit analogue dimming input voltage range vin=5.5-46v 0-15v output current range vin=5.5-46v 0%-100% control voltage range full on 0.2v50mv full off 4.5v200mv driving current vc=5v -- -- 0.2 ma pwm dimming& remote turn-of f on open or 2.8v led drive r kc24h-r series 201 4 .02.28- a /3 page 3 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation product characteristic curve 300~350 output current (ma) 300~350 500~700 -40 0 40 85 120 71 operating temperature () te m p e r at u r e d e r at i n g c u r v e fig. 1 KC24H-350R kc24h-500r kc24h-700r 75 80 85 90 95 100 036912 efficiency(%) output voltage(v) vin=12v KC24H-350R kc24h-500r kc24h-700r 70 80 90 100 3 6 9 12151821 efficiency(%) output voltage(v) vin=24v KC24H-350R kc24h-500r kc24h-700r 50 60 70 80 90 100 0 3 6 9 12 15 18 21 24 27 30 33 36 efficiency(%) output voltage(v) vin=36v KC24H-350R kc24h-500r kc24h-700r 50 60 70 80 90 100 3 6 9 12 15 18 21 24 27 30 33 36 efficiency(%) output voltage(v) vin=48v design reference 1. input/output relationship input voltage(vdc) output voltage range(vdc) constant output current (ma) output power (w max) input voltage(vdc) output voltage range(vdc) constant output current (ma) output power (w max) 46 3.3-36.0 300 10.80 46 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 46 3.3-36.0 500 18.00 46 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
led drive r kc24h-r series 201 4 .02.28- a /3 page 4 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation input voltage(vdc) output voltage range(vdc) constant output current (ma) output power (w max) input voltage(vdc) output voltage range(vdc) constant output current (ma) output power (w max) 46 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 -- -- -- -- 2. typical application circuit 1st led last led kc24h-xxxrx3 +vin gnd 1 4 3 6 5 (pwm dim/on/off) 2 (analogue dim) +vout -vout fig. 2 application circuits in series 1st led last led 6 5 kc24h-xxxrx3 +vin gnd 4 1 2 (pwm dim/on/off) 3 (analogue dim) +vout -vout ptc ptc fig. 3 application circuits in series and parallel 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 4. note: the negative output terminal can?t connect gnd, or the module may be damaged. 3. recommended ac input circuit 1st led last led kc24h-xxxrx3 5 6 ac in 1 4 + - +vout -vou t 3 (pwm dim/on/off) - + 5vac ~ 32vac ac in 2 (analogue dim) c1 c2 d1 d4 d2 d3 fig. 4 components specification c1 x1 safety capacitor, 0.1 f /300vac (qiya) c2 100 f /63v electrolytic capacitor, 1016(flat surface)ncc d1, d2, d3, d4 rectifier diode 1n4007 1a/1000v d0-41(panjit) 4. emc solution-recommended circuit kc24h-xxxrx3 vin gnd tvs c1 c2 c3 c4 c5 l1 +vout -vout c6 r1 dim 1 4 6 2 5 1st led last led fig.5 recommended emc circuit note: add circuit may let the esd level of pwm-control pin reach to 6kv. components specification tvs smc51a,1500w on l1 cd53-82 h ceaiya c1 470 f/100v ncc c2 225k/50v 1210 x7r (torch) c3 104k/50v 0805 x7r (torch) c4 105k/50v 1210 x7r (torch) c5 102k/2000v 1210 (tdk) choose or no c6 470pf/100v 0805 (torch) r1 680 ? 0805(can replaced by inductance or magnetic bead)
led drive r kc24h-r series 201 4 .02.28- a /3 page 5 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 5. pwm dimming control pwm control signal 0 1 0 1 0 1 0 1 0 1 pwm control signal output current output current(led turned on) output current(led turned off) pwm control signal for pwm dimming signals with a certain frequency, the output current of the driver is related to the duty ratio of pwm signal. refer to the formula for the calculation method: t i o_norm i o_set = (dt-0.8 ) where, io_set represents required output current (ma); d represents the duty ratio (%) of pwm signal; t represents the period (ms) of pwm signal; and io_norm represents the rated output value (ma) of the driver. note: the above formula is for reference only; and deviation of output curre nt may exist due to various loads. the min. conducted time of pwm signal shal lnot be less than 0.8ms, or the product will be in abnormal operation; in case of low voice from the driver during pwm dimming, it is normal since the pwm dimming frequency is within the auditory frequency range of human ears (20hz -20khz in general). to prevent seeing flash of the led by human eyes, it is suggested to set the pwm dimming frequency between 100-200hz. pwm curve(vin=24v,5leds): KC24H-350Rx3 kc24h-500rx3 kc24h-700rx3 50 100 150 200 250 300 350 400 10 30 50 70 90 100 120 140 150 170 190 200 220 250 output current(ma) pwm dimming frequency (hz) fig. 6 output current vs pwm dimming frequency (d=50%) KC24H-350Rx3 kc24h-500rx3 kc24h-700rx3 0 100 200 300 400 500 600 20 30 40 50 60 70 80 output current(ma) dimming duty ratio (%) fig. 7 output current vs dimming duty ratio(f=200hz) 6. analogue dimming and t ypical application 1st led last led kc24h-xxxrx3 +vin gnd 15k 6k8 on/off (optional) 0-10v 1 4 6 5 3 2 fig. 8 analogue dimming circuit output current voltage control(0-15v max) analogue input voltage 0.2v 1v 2v 3v 4v 5v 15v 0% 100% fig. 9 analogue input voltage and output current 7. t he v oltage drop o f all leds in t he datasheet is 3.3-3.8v during actual application, t he numbe r o f leds can be confirmed based on the actual voltage drop and output voltage of leds. 8. t his product does not support hot-plug use. 9. for more info r mation please find t he application notes on w ww.mornsun-power.com
led drive r kc24h-r series 201 4 .02.28- a /3 page 6 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation dimensions and recommended layout notes: 1. packing information please refer to 'product packing information'. packing bag number: 58210025; 2. if the product is not operated within the required load range, theproductperformancecannotbeguaranteedtocomplywithall performance indexes in the datasheet; 3. unless otherwise specified, data in this datasheet should be tested under the conditions of ta=25 c, humidity<75% when inputting nominal voltage and outputting 5 leds; 4. all index testing methods in this datasheet are based on our company?s corporate standards; 5. the performance indexes of the product models listed in this datasheet are as above, but some indexes of non-standard model products will exceed the above-mentioned requirements, and please directly contact with our technician for specific information; 6. we can provide product customization service; 7. the product specification may be changed at any time without prior notice. mornsun guangzhou 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: 86-20-38601850-8801 fax: 86-20-38601272 e-mail: info@mornsun.cn
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