the copyright and authority for the interpretation of the products are reserved by mornsun kc24h a/1-2012 page 1 of 5 kc24h series constant current high power led driver rohs part number system KC24H-1000X3 product series output current package style input voltage footprint details product features l 1,000/1,200ma output current l efficiency up to 97% l ultra-wide range voltage (input and output) l constant current mode, high power output l pwm dimming & analogue dimming l remote on/off, continuous short circuit protection l meets en55015 without external circuit applications the kc24h series is a step-down constant current source designed for driving high power leds. it features high efficiency, wide input voltage range, high operating temperature, pwm and analogue dimming, remote on/off control. it is widely used in led illumination areas such as decorative light, special control light, backlight, commercial light, streetlight, in-house light and car light, etc. selection guide input voltage(vdc) input current (ma)(typ.) model number nominal (range) output voltage (vdc) (range) output current (ma) @vin=24v,vo=17v dimming control max. capacitive load( f) efficiency (%, typ.) @max. load approval kc24h-1000(x1/x2/x3) 1000 740 pwm+analogue 97 kc24h-1200(x1/x2/x3) 24(5.5-48) 3.3-36 1200 892 pwm+ analogue 1000 97 rohs note: 1. the types without suffix, such as kc24h-1000 are eight-pin products without analogue dimming+pwm dimming function. 2. the types with suffix x1,such as kc24h-1000x1 are nine-pin products with analogue dimming function only. 3. the types with suffix x2,such as kc24h-1000x2 are nine-pin products with pwm dimming function only. 4. the types with suffix x3,such as KC24H-1000X3 are ten-pin products with analogue dimming+pwm dimming function. intput specifications item test conditions min. typ. max. unit input voltage range 5.5 24 48 utmost input voltage 10 seconds 5 -- 55 minimum input-output voltage drop input voltage range 2 -- 4 vdc input filter filter output specifications item test conditions min. typ. max. unit io=1000ma 3.3 -- 36 output power io=1200ma 3.96 -- 43.2 w output current accuracy -- 3 5 output current stability -- 0.5 1 % temperature drift full load -- -- 0.05 %/ c ripple & noise* 20mhz bandwidth -- 70 200 mvp-p over temperature protection after cooling, automatic recovery short circuit protection continuous, automatic recovery * test ripple and noise by parallel cable method. see detailed operation instructions at testing of power converter section, application notes. common specifications item test conditions min. typ. max. unit switching frequency -- 370 -- khz mtbf mil-hdbk-217f@25 650 -- -- k hours case material plastic(ul94-v0)
the copyright and authority for the interpretation of the products are reserved by mornsun kc24h a/1-2012 page 2 of 5 weight -- 13 -- g environmental specifications item test conditions min. typ. max. unit operating humidity -- -- 95 storage humidity -- -- 95 % operating temperature power derating (above 71 ) -40 -- 85 storage temperature -55 -- 125 lead temperature 1.5mm from case for 10 seconds -- -- 265 c cooling free air convection pwm dimming and remote on/off control item test conditions min. typ. max. unit on open or 2.8v the copyright and authority for the interpretation of the products are reserved by mornsun kc24h a/1-2012 page 3 of 5 input vs output input voltage (vdc) output voltage range(vdc) output constant current (ma) maximum output power (w, max.) input voltage (vdc) output voltage range(vdc) output constant current (ma) maximum output power (w, max.) 48 3.3-36.0 1000 36 48 3.3-36.0 1200 43.2 36 3.3-32.0 1000 32 36 3.3-32.0 1200 38.4 24 3.3-21.0 1000 21 24 3.3-21.0 1200 25.2 20 3.3-17.0 1000 17 20 3.3-17.0 1200 20.4 15 3.3-13.2 1000 13.2 15 3.3-13.2 1200 15.84 12 3.3-10.0 1000 10 12 3.3-10.0 1200 12 5.5 3.3-4.0 1000 4 5.5 3.3-4.0 1200 4.8 typical temperature curve operating temp.( ) c temperature derating graph efficiency vs output voltage curve (vin=48) 75 77 79 81 83 85 87 89 91 93 95 97 99 3.357.51012.51518212427303336 output voltage (v) efficiency (%) KC24H-1000X3 kc24h-1200x3 efficiency vs output voltage curve (vin=24v) 75 77 79 81 83 85 87 89 91 93 95 97 99 3.3 5 7 9 11 13 15 17 19 21 output voltage (v) efficiency (%) KC24H-1000X3 kc24h-1200x3 efficiency vs output voltage curve (vin=36v) 75 77 79 81 83 85 87 89 91 93 95 97 99 3.357.51012.515182124273032 output voltage (v) efficiency (%) KC24H-1000X3 kc24h-1200x3 efficiency vs output voltage curve (vin=12v) 76 78 80 82 84 86 88 90 92 94 96 3.3 4 5 6 7 8 9 10 output voltage (v) efficiency (%) KC24H-1000X3 kc24h-1200x3
the copyright and authority for the interpretation of the products are reserved by mornsun kc24h a/1-2012 page 4 of 5 outline dimensions,recommended footprint & packaging mechanical dimensions tube outline dimensions recommended footprint note: unit :mm(inch) general tolerances: 0.50mm[ 0.020inch] l=530mm[20.866inch] tube quantity: 16pcs l=220mm[8.661inch] tube quantity: 6pcs shorttubeinnerpackagingdimensions: l*w*h=255*170*80mm; shorttubeouterpackaging dimensions (withsixinnerpackagingboxes): l*w*h=375*280*270mm; long tubeinnerpackagingdimensions: l*w*h=580*200*100mm; long tubeouterpackagingdimensions(withtwoinnerpackagingboxes) l*w*h=600*215*220mm; long tubeouterpackagingdimensions(with threeinnerpackagingboxes) l*w*h=600*215*325mm. (front view) 1 2 . 6 5 [ 0 . 5 0 0 ] 4 . 1 0 [ 0 . 1 6 0 ] ? 0.50 [0.020] note: unit: mm[inch] pin tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] diameter footprint details pin function note:grid 2.54*2.54mm . 2 3 4 9 11 22 21 16 14 ? 1.00 [0.039] 23 23.70 [0.930] 8.30 [0.330] 2 1 . 2 0 [ 0 . 8 3 0 ] (bottom view) 31.70 [1.250] 2 0 . 3 0 [ 0 . 8 0 0 ] 1 5 . 2 4 [ 0 . 6 0 0 ] 2.54 [0.100] 2 3 4 9 11 14 16 212223 22.86 [0.90] 12.7 [0.50] 2,3 9,11 4 14,16 21 gnd 22,23 on/off/pwm +vin analogue dimming +led -led comments dc supply leave open if not use do not connect to -led led cathode connection led anode connection leave open if not use 1 5 . 2 [ 0 . 5 9 8 ] design & apply considerations 1) typical application circuits 1st led last led kc24h-xxxx3 +vin gnd 22,23 2,3 4 14,16 9,11 (pwm dim/on/off) 21 (analogue dim) +led -led 1st led last led 14,16 9,11 kc24h-xxxx3 +vin gnd 22,23 2,3 4 (pwm dim/on/off) 21 (analogue dim) +led -led 2xnpn 0.5~1 (figure 3) series application (figure 4) parallel-series application note: 1. if input>40v, the input port must add an external capacitor ( 47 f/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 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)
the copyright and authority for the interpretation of the products are reserved by mornsun kc24h a/1-2012 page 5 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: t i o_norm 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%) 0 100 200 300 400 500 600 80 100 125 150 175 200 250 pwm frequency output current KC24H-1000X3 kc24h-1200x3 output current vs pulse width of the pwm signal (f=200hz) 0 100 200 300 400 500 600 700 800 900 1000 20 30 40 50 60 70 80 90 pulse width of the pwm signal output current KC24H-1000X3 kc24h-1200x3 (figure 5) pwm frequency vs output current(d=50%) (figure 6) output current vs pulse width of the pwm signal (f=200hz) 3) analogue dimming control and application example 1st led last led kc24h-xxxx3 +vin gnd 5k1 5k6 on/off (optional) 0-10v 22,23 2,3 14,16 9,11 4 21 +led -led 0% 100% o u t p u t c u r r e n t voltagecontrol(0-15v max) 0.2v1v 2v 3v 4v 5v 15v analogue input voltage (figure 7) analogue dimming circuit (figure 8) output current vs analogue input voltage 4) no parallel connection(output) or plug and play note: 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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