LDD-H

DC-DC Constant Current LED driver Features : LDD-H Constant current output: 300mA to 1000mA series 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 Fully encapsulated with IP67 level Compact size Low cost, high reliability Suitable for driving illumination LED 3 years warranty SPECIFICATION ORDER NO. CURRENT RANGE VOLTAGE RANGE OUTPUT CURRENT ACCURACY (Typ.) LDD-300H 300mA 2 ~ 52VDC 3% at 24VDC input ; 4% at 48VDC input 150mVp-p 150mVp-p 200mVp-p 200mVp-p 350mVp-p LDD-350H 350mA LDD-500H 500mA LDD-600H 600mA LDD-700H 700mA LDD-1000H 1000mA RIPPLE & NOISE(max.) Note.2 150mVp-p 40KHz ~ 1000KHz SWITCHING FREQENCY EXTERNAL CAPACITANCE LOAD (max.) 2.2uF INPUT 9 ~ 56VDC VOLTAGE RANGE 97% at full load and 36VDC/48VDC input EFFICIENCY (max.) 320mA Full load Note.3 270mA DC CURRENT 10mA No load FILTER Capacitor Leave open if not use 450mA 550mA 650mA 900mA PWM REMOTE ON/OFF DIMMING & PWM FREQUENCY ON/OFF CONTROL QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(max.) SHORT CIRCUIT PROTECTION OVER TEMPERATURE WORKING TEMP. WORKING HUMIDITY STORAGE TEMP., HUMIDITY ENVIRONMENT TEMP. COEFFICIENT VIBRATION 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 Regulated at rated output current Protection type: Can be continued, recovers automatically after fault condition is removed Tj 150 typically(IC1) detect on main control IC Protection type : Shut down, recovers automatically after temperature goes down -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 OPERATING CASE TEMP. (max.) 100 EMC EMS IMMUNITY MTBF DIMENSION OTHERS WEIGHT POTTING MATERIAL EMI CONDUCTION & RADIATION Compliance to EN55015, FCC part 15 class B Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A 2000Khrs min. MIL-HDBK-217F (25 ) 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) 18g Expoxy(UL94-V0) Mechanical Specification 20.3 (0.80) Pin Configuration Unit: mm (inch) Pin No. 1,2 11,12 31.8 (1.25) Derating Curve 2.06 (0.08) Output -Vin -Vout +Vout Comment Don't connect to -Vout LED - Connection LED + Connection 13,14 22 LOAD (%) 24 23 22 BOTTOM VI EW 1 2 100 75 71 50 25 for 600~1000mA 85 for 300~500mA SIDE 3.81 (0.15) 2.5 4 (0.10) VI EW ON/OFF and PWM Dimming PWM DIM (Leave open if not used) +Vin DC Supply 14 13 11 12 23,24 -40 0 25 50 71 85 100 15.24 (0.60) 12.2 (0.48) Ta ( ) NOTE 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. File Name:LDD-H-SPEC 2011-06-02 DC-DC Constant Current LED driver PWM Dimming Control H ON ON ON LDD-H series Standard Application +Vin +Vout 1st LED PWM Signal L OFF OFF 100~1KHz OFF PWM Max H L Dimming LDD-H Last LED Output Current 0 During PWM dimming operation, the output current will change to PWM style. 100 Tol : 3%(Typ.) 75 I out (% ) -Vin H: >2.5~6VDC or open circuit L: