LDD-H DC-DC Constant Current Step-Down LED driver series Features : DC/DC step-down converter Constant current output: 300mA to 1000mA Wide input voltage: 9 ~ 56VDC Wide output LED string voltage: 2 ~ 52VDC High efficiency up to 97% 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 for pin and wire style Non-potted, optional conformal coating for SMD style (Order No.: LDD- 350 HSC) Compact size Low cost, high reliability Suitable for driving illumination LED 3 years warranty LDD-350H W Blank : pin style W : wire style S : SMD style SPECIFICATION ORDER NO. CURRENT RANGE VOLTAGE RANGE OUTPUT LDD-300H LDD-350H LDD-500H LDD-600H LDD-700H LDD-1000H 300mA 350mA 500mA 600mA 700mA 1000mA 200mVp-p 350mVp-p Note.4 2 ~ 52VDC CURRENT ACCURACY (Typ.) 3% at 24VDC input ; 4% at 48VDC input for LDD-H/HW ; 5% for LDD-HS 150mVp-p 150mVp-p 200mVp-p RIPPLE & NOISE(max.) Note.2 150mVp-p 40KHz ~ 1000KHz SWITCHING FREQENCY EXTERNAL CAPACITANCE LOAD (max.) 2.2uF VOLTAGE RANGE INPUT 9 ~ 56VDC 97% at full load and 36VDC/48VDC input for LDD-H/HW ; 96% at full load and 36VDC/48VDC input for LDD-HS EFFICIENCY (max.) 320mA 450mA 550mA 650mA 900mA Full load Note.3 270mA DC CURRENT 5mA No load FILTER Capacitor Leave open if not use 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 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 for LDD-H/HW ; 20%~85% RH non-condensing for LDD-HS -55 ~ +125, 10 ~ 95% RH 0.03% / 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes VIBRATION OPERATING CASE TEMP. (max.) 100 EMC OTHERS NOTE EMC EMISSION EMC IMMUNITY Compliance to EN55015, FCC part 15 class B MTBF DIMENSION 2000Khrs min. MIL-HDBK-217F (25) 31.8*20.3*12.2mm or 1.25"*0.8"*0.48" inch (L*W*H) for LDD-H/HW ; 31.8*20.3*11.4mm or 1.25"*0.8"*0.45" inch (L*W*H) for LDD-HS WEIGHT LDD-H:15.6g ; LDD-HW:18g ; LDD-HS:12.8g POTTING MATERIAL Expoxy(UL94-V0) for LDD-H/HW ; without potted for LDD-HS Compliance to EN61000-4-2,3,4,6,8, light industry level, criteria A 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. 4.Output voltage will always step down by 3 volts from input DC voltage. 5.The output of LDD-H should not be connected to the input of the same unit or output from other sources. File Name:LDD-H-SPEC 2015-06-03 LDD-H DC-DC Constant Current Step-Down LED driver Pin Configuration Mechanical Specification Blank type(LDD- H): Unit: mm (inch) Pin No. Output Comment 1,2 -Vin 1 2 BOTTOM SIDE 3.81 [0.15] 14 13 VI EW 2.5 4 [0.1] VI EW 31.8 [1.25] 2.06 [0.08] 20.3 [0.80] 24 23 22 series 11 12 15.24 [0.60] 0.60 11,12 -Vout Don't connect to -Vout LED - Connection 13,14 +Vout LED + Connection 22 PWM DIM ON/OFF and PWM Dimming (Leave open if not used) 23,24 +Vin DC Supply Pin No. Output Comment 12.2 [0.48] NOTE: Pin tolerance 0.05mm W type(LDD -- HW): 20.3[0.80] 12.2 [0.48] 52mm 10010mm 2 2 2 23 21 11 SIDE BOTTOM VIEW 14 VI EW 11 31.8[1.25] 21 14 -Vin Don't connect (Black) to -Vout -Vout LED - Connection (Blue) +Vout LED + Connection (Yellow) 21 PWM DIM (White) ON/OFF and PWM Dimming (Leave open if not used) 23 +Vin (Red) DC Supply Pin No. Output Comment -Vin 11 NOTE: All wires UL3385 22AWG S type(LDD -- HS): 0.25[0.010] 1.5[0.059] 2.0[0.08] 25.4[1.00] 20.3[0.80] 24 23 1 2 31.8[1.25] 0.5[0.02] BOTTOM VIEW 1.0[0.04] 14 13 -Vout 13,14 +Vout LED + Connection 21 PWM DIM ON/OFF and PWM Dimming (Leave open if not used) 23,24 +Vin DC Supply others N.C No connection 1,2 2.54[0.10] 21 11,12 Don't connect to -Vout LED - Connection 11 12 10.9[0.43] 11.4[0.45] 2.54mm Recommended PCB layout (for LDD-HS) 2.54mm 24.37[0.96] 26.40[1.04] 24 23 21 14 13 TOP VIEW 1 2 11 12 2.03[0.08] 2.54[0.1] 1.5[0.06] File Name:LDD-H-SPEC 2015-06-03 LDD-H DC-DC Constant Current Step-Down LED driver Reflow Soldering Curve (for LDD-HS) Derating Curve Peak. Temp 240 10 sec. Max. 240 220 220 60 sec. Max. (>220) 100 LOAD (%) Temperature () series 150 100 85 for 300~500mA 75 71 for 600~1000mA 50 50 25 0 Time(sec.) Remark : The curve applies only to the " Hot Air Reflow Soldering" -40 0 25 ON PWM Signal 85 100 Ta () PWM Dimming Control H(5V) 71 50 ON During PWM dimming operation, the output current will change to PWM style. ON 100 OFF L(0V) OFF Tol : 3%(Typ.) OFF 100~1KHz I out(% ) 75 Max Output Current 50 25 0 0 25 Standard Application 50 75 100 Duty Cycle (%) +Vin +Vout 1st LED PWM Dimming L H: >2.5~6VDC or open circuit LDD-H H L: <0.8VDC or short Last LED -Vin -Vout Efficiency VS Output Voltage(Number of LEDs) Fig-1 12VDC input, 1~3 LEDs(Vf=3V) Fig-2 24VDC input, 1~7 LEDs(Vf=3V) 300mA 300mA 100.0% 100% 100.0% 100% 350mA 350mA 500mA 500mA 300mA 300mA 600mA 600mA 350mA 350mA 500mA 500mA 600mA 600mA 700mA 700mA 1000mA 1000mA 90.0% 90% 700mA 700mA 1000mA 1000mA EFFICIENCY (%) 95.0% 95% EFFICIENCY (%) 95.0% 95% 90.0% 90% 85.0% 85% 85.0% 85% 80.0% 80% 80.0% 80% 11 22 75.0% 75% 33 11 22 3 Output Voltage(LEDs) Fig-3 44 3 55 6 77 Output Voltage(LEDs) 36VDC input, 1~10 LEDs(Vf=3V) Fig-4 300mA 300mA 350mA 350mA 100.0% 100% 300mA 300mA 48VDC input, 1~14 LEDs(Vf=3V) 350mA 350mA 500mA 500mA 100.0% 100% 500mA 500mA 600mA 600mA 600mA 600mA 95.0% 95% 700mA 700mA 95.0% 95% 700mA 700mA 1000mA 1000mA 1000mA 1000mA EFFICIENCY (%) EFFICIENCY (%) 90.0% 90% 90.0% 90% 85.0% 85% 80.0% 80% 75.0% 75% 70.0% 70% 85.0% 85% 80.0% 80% 75.0% 75% 70.0% 70% 11 22 3 3 44 55 66 77 Output Voltage(LEDs) 88 99 10 10 65.0% 65% 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 12 11 12 13 13 14 14 Output Voltage(LEDs) File Name:LDD-H-SPEC 2015-06-03 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Mean Well: LDD-300HW LDD-350HW LDD-500HW LDD-600HW LDD-700HW LDD1000HW