ta ( ) load (%) -40 0 25 50 71 85 50 25 75 100 100 pin no. 23,24 1,2 11,12 13,14 22 output +vin -vin -vout +vout pwm dim comment dc supply don't connect to -vout led - connection led + connection on/off and pwm dimming (leave open if not used) 71 for 6 00~1000ma 85 for 300~500ma constant current output: 300ma to 1000ma wide input voltage: 9 ~ 56vdc wide output led string voltage: 2 ~ 52vdc high efficiency up to 97% dc/dc step-down converter built-in emi filter, comply with en55015 and fcc part15 without additional input filter and capacitors built-in pwm and remote on/off control protections: short circuit / over temperature cooling by free air convection compact size low cost, high reliability suitable for driving illumination led 3 years warranty fully encapsulated with ip67 level specification file name:ldd-h-spec 2011-06-02 LDD-300H ldd-350h ldd-500h ldd-600h ldd-700h ldd-1000h order no. current range voltage range current accuracy (typ.) output efficiency (max.) dc current input pwm dimming & on/off control environment emc working temp. working humidity storage temp., humidity temp. coefficient vibration operating case temp. (max.) mtbf dimension others note weight potting material short circuit filter remote on/off pwm frequency quiescent input in shutdown mode(max.) current over temperature protection ripple & noise(max.) note.2 switching freqency external capacitance load (max.) 97% at full load and 36vdc/48vdc input 270ma 10ma 9 ~ 56vdc 2.2uf 40khz ~ 1000khz 150mvp-p 3% at 24vdc input ; 4% at 48vdc input 2 ~ 52vdc 300ma 350ma 150mvp-p 320ma 500ma 150mvp-p 450ma 600ma 200mvp-p 550ma 700ma 1000ma 200mvp-p 350mvp-p 650ma 900ma 2000khrs min. mil-hdbk-217f (25 ) -40 ~ + 85 (refer to derating curve) 20% ~ 90% rh non-condensing -55 ~ +125 , 10 ~ 95% rh 0.03% / 10 ~ 500hz, 2g 10min./1 cycle, period for 60min. each along x, y, z axes 100 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (l*w*h) 18g expoxy(ul94-v0) 1.all parameters are specified at normal input(48vdc), rated load, 25 70% rh ambient. 2.ripple & noise are measured at 20mhz by using a 12" twisted pair terminated with a 0.1uf capacitor. 3.test condition: 48vdc input. full load note.3 no load capacitor leave open if not use power on with dimming: dim ~ -vin >2.5 ~ 6vdc or open circuit power off : dim ~ -vin < 0.8vdc or short 100 ~ 1khz 1ma at pwm dimming off and 24vdc input mechanical specification unit: mm (inch) pin configuration derating curve dc-dc constant current led driver l d d - h s e r i e s features : voltage range tj 150 typically(ic1) detect on main control ic regulated at rated output current protection type: can be continued, recovers automatically after fau lt condition is removed protection type : shut down, recovers automatically after temperatu re goes down ems immunity compliance to en55015, fcc part 15 class b compliance to en61000-4-2,3,4,6,8, light industry level, criter ia a emi conduction & radiation 14 13 12 11 23 24 22 2 1 bottom vi ew side vi ew 12.2 (0.48) 2.06 (0.08) 3.81 (0.15) 2.5 4 (0.10) 20.3 (0.80) 31.8 (1.25) 15.24 (0.60)
65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 300ma 350ma 500ma 600ma 700ma 1000ma 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% 1 2 3 4 5 6 7 8 9 10 300ma 350ma 500ma 600ma 700ma 1000ma 75.0% 80.0% 85.0% 90.0% 95.0% 100.0% 1 2 3 4 5 6 7 300ma 350ma 500ma 600ma 700ma 1000ma 80.0% 85.0% 90.0% 95.0% 100.0% 1 2 3 300ma 350ma 500ma 600ma 700ma 1000ma pwm dimming control efficiency vs output voltage(number of leds) standard application 0 25 50 75 100 25 50 75 100 pwm signal output current during pwm dimming operation, the output current will change to pwm style. h max l0 off off off on on 100~1khz on +vin +vout -vin h: >2.5~6vdc or open circuit l: <0.8vdc or short -vout 1st led last led h pwm dimming ldd-h l duty cycle (%) fig-1 12vdc input, 1~3 leds(vf=3v) fig-2 24vdc input, 1~7 leds(vf=3 v) fig-3 36vdc input, 1~10 leds(vf=3v) fig-4 48vdc input, 1~14 leds(vf= 3v) i out (% ) output voltage(leds) output voltage(leds) output voltage(leds) output voltage(leds) efficiency (%) efficiency (%) efficiency (%) 80% 85% 90% 95% 100% 1 2 3 efficiency (%) 80% 85% 90% 95% 100% 2 3 4 5 6 7 75% 1 80% 85% 90% 95% 100% 3 4 5 6 7 8 9 10 75% 70% 1 2 80% 85% 90% 95% 100% 70% 65% 75% 4 5 6 7 8 9 10 11 12 13 14 1 3 2 dc-dc constant current led driver l d d - h s e r i e s file name:ldd-h-spec 2011-06-02 tol : 3%(typ.) 300ma 300ma 300ma 300ma 350ma 350ma 350ma 350ma 500ma 500ma 500ma 500ma 600ma 600ma 600ma 600ma 700ma 700ma 700ma 700ma 1000ma 1000ma 1000ma 1000ma
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