70W Buck LED Driver LIGHTLINE Features Constant Current Output (350 to 1200mA) DC/DC-Converter Digital PWM and Analogue Voltage Dimming High Efficiency to 96% LED DRIVER with 5 year Warranty EN, UL and RAILWAYS Certified Metal or Plastic Case Version IP67 Rated for /W, Plastic Case Version Description The RCD-48 series is a step-down constant current source designed for driving high power LED applications. Four output currents are available. The maximum output voltage is 56V. The buck drivers have digital PWM Constant and/or analogue voltage dimming control and are special featured with very high efficiency. Typical applications are 48V bus lighting solutions or high voltage LED arrays (e.g. high bay lights). Current Selection Guide Part Input Output Output Dimming Efficiency Buck LED Number Range Current Voltage Control Typ. (VDC) (mA) (VDC) (%) Driver RCD-48-0.35* 9-60 0-350 2-56 Digital + Analogue 96 RCD-48-0.50* 9-60 0-500 2-56 Digital + Analogue 96 RCD-48-0.70* 9-60 0-700 2-56 Digital + Analogue 96 RCD-48-1.00* 9-60 0-1000 2-56 Digital + Analogue 96 RCD-48-1.20/M 9-60 0-1200 2-56 Digital + Analogue 96 *add suffix /W for wired version with Vref output and analogue + PWM dimming control (seven wires) Note: Add suffix /M for metal case (RCD-48-1.20/M only). No metal case with wires available. Standard version (no suffix) and wired version (suffix /W) only in plastic case. RoHS 2011/65/EU 6/6 Specifications (typical at 25C, nominal input voltage, rated output current unless otherwise specified) E224736 Operating Input Voltage Range 9-60VDC Absolute Maximum Input Voltage 65VDC max. EN-50121-3-2 Certified Output LED String Voltage Range 2V min. / 56V max. EN-60950-1 Certified (depand on the input voltage, defined by the output impedance, see Safe Operating Area) UL-60950-1 Certified Input Filter Capacitor Output Current Accuracy 3% typ. / 5% max. Internal Power Dissipation 350mA 0.8W typ. (Vin=60V, Vout=56V) 500mA 1.0W typ. RCD-48 700mA 1.1W typ. 1000mA 1.3W typ. 1200mA 1.4W typ. Output Current Stability Vin=60V, Vout=2-56V, Iout=350-1200mA 1% max. Output Ripple and Noise (20MHz BW) Vin=60V, Vout=2-56V, Iout=350-1200mA 300mVp-p max. Maximum Capacitive Load 100F max. Switching Frequency 50kHz min. / 1000kHz max. Derating-Graph Efficiency at Full Load 96% typ. PWM DIMMING CONTROL & REMOTE ON/OFF CONTROL (Ambient Temperature) Input Voltage Range 5V typ. / 10V max. Threshold Voltage Device ON 0.5V max. Device OFF 2.0V min. PWM Frequency For Linear Operation 200Hz max. Frequency Limit 1000Hz max. ANALOGUE DIMMING CONTROL (Leave open if not used - do not tie to +Vin) Input Voltage Range 0V min. / 10V max. Control Voltage Range 0V min. / 5.1V max. Note: The analogue dimming range is from 0% to 100%, but the output can be unstable below 10%, when using the analo- gue dimming function. Analogue Pin Drive Current Vc=5V 0.2mA max. Vref Version Vref Voltage 5V -5%/+10% Vref Output Current 0.15mA max. Vref Output Short Circuit Current 2mA typ. Ambient Temperature 350mA -40C to +80C (free air convection) 500mA -40C to +80C 700mA -40C to +75C 1000mA -40C to +60C 1200mA -40C to +50C Analogue and PWM Dimming Control Note: Leave open if not used - do not tie to +Vin continued on next page Refer to Application Notes L-12 REV: 2/2017 www.recom-power.com RCD-48 RCD-48 RCD-48 LIGHTLINE DC/DC-Converter Series Specifications (typical at 25C, nominal input voltage, rated output current unless otherwise specified Storage Temperature -55C to +125C Case Thermal Impedance 10C/W typ. Safe Operating Area Soldering Temperature 265C / 10sec. max. Relative Humidity 95% RH Input Filter Capacitor only Short Circuit Protection Continuous, Auto Recovery Case Material Non Conductive Black Plastic Metal Case Potting Material Silicone Potting Material (UL94V-0) Case Dimensions Plastic Case 32.6 x 16.65 x 11.10 mm Metal Case 32.6 x 16.0 x 11.2 mm Package Weight Pinned (Plastic Case) 13g Wired (Plastic Case) 16g Pinned (Metal Case) 16g Packing Quantity Pinned (Plastic/Metal Case) 29 pcs. Wired (Plastic Case) 12 pcs. MTBF (using MIL-HDBK217F) +25C 1700 x 10 hours % % (Nominal Vin at Full Load) Note: Detailed Information see Application Notes chapter MTBF Safety Shock / Vibration EN61373 EMC RAILWAYS EN50121-3-2:2006 Note: Conducted EN55011 All LED Drivers may not be used without a load. Radiated EN55011 They must be switched on the primary side only. ESD EN61000-4-2 Noncompliance may damage the LED or reduce Radiated Immunity EN61000-4-3 its lifetime. Fast Transient EN61000-4-4 Surge EN61000-4-5 Conducted Immunity EN61000-4-6 Package Style and Pinning Through Hole Case (Plastic) * %- -%-+ + % + ( %+ ,% 2 5 % - %- /%3, Pin Connections RCD-48-x.xx Pin Function Comments % 1 % +60 1 +Vin DC Supply / %+, 2 GND Do not connect to -Vout ,& %+, * 4 2 5 % - , 3 Vref Vref Voltage 4.8-5.5V typ. - + 4 PWM/ON/OFF Leave open if not used %+, 5 Analogue Dimming Leave open if not used Through Hole Case (Metal) 6 -Vout LED Cathode Connection * %- -% 7 +Vout LED Anode Connection % Unit: mm %- ,% Tolerance: XX.X 0.5 mm % - %- XX.XX 0.25 mm /%3, % 1 % +60 / %+, ,& %+, * 4 2 5 % - , - + %+, www.recom-power.com REV: 2/2017 L-13 & % %