Features
Regulated
Converters
Description
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UL Certified Constant Current LED Driver
Wide Input and Output Voltage Range
Digital PWM and Analogue Voltage Dimming
Short Circuit and Overtemperature Protected
Pin, Wire or Open Frame SMD Versions
IP67 rated for /W Version
96% Efficiency
INNOLINE
DC/DC-Converter
The RCD series is a step-down constant current source designed for driving high power white LEDs. Standard
output currents available are 300mA, 350mA, 500mA, 600mA, 700mA, 1A and 1.2A to make this driver
compatible with a wide range of LEDs from many different manufacturers without the need for any external
components. Despite its compact size, the RCD series is fully featured with very high efficiency, wide input
voltage range, high ambient operating temperature and two means of LED dimming: PWM/digital control and
analogue voltage dimming. Both dimming controls are independent and can be combined.
The driver is also designed to be as reliable as the LEDs it is driving, even at the full operating temperature.
Options include an IP67 wired version (/W) and an open frame version with SMD pins (/SMD/OF Option).
Constant
Current LED
Driver
Selection Guide
Part
Number
RCD-24-0.30**
RCD-24-0.35**
RCD-24-0.50**
RCD-24-0.60**
RCD-24-0.70**
RCD-24-1.00**
Input
Range
(VDC)
4.5-36V
4.5-36V
4.5-36V
4.5-36V
4.5-36V
6-36V
Output
Output
Current Voltage
(mA) (Vmin-Vmax)
0-300
0-350
0-500
0-600
0-700
0-1000
2-35
2-35
2-35
2-35
2-35
3-33
3-33
Dimming
Control
Digital + Analogue
Digital + Analogue
Digital + Analogue
Digital + Analogue
Digital + Analogue
Digital + Analogue
Digital + Analogue
Mounting
Style
SMD, Pins or Wired
SMD, Pins or Wired
SMD, Pins or Wired
SMD, Pins or Wired
SMD, Pins or Wired
Pins or Wired
Pins or Wired
2002/95/EC
6/6
RoHS
RCD-24-1.20**
6-36V
0-1200
** No suffix is standard with PCB Pins.
E224736
EN-60950-1 Certified
UL-60950-1 Certified
** Add suffix /SMD/OF for open frame version with SMD solderpins
** Add suffix /SMD/OF-R for open frame version with SMD solderpins packed in Tape and Reel
(SMD versions available in 300mA ~ 700mA only)
** Add suffix /W for standard wired version without dimming control (four wires)
** Add suffix /W/X1 for wired version with analogue dimming control (five wires)
** Add suffix /W/X2 for wired version with PWM dimming control (five wires)
** Add suffix /W/X3 for wired version with both analogue and PWM dimming controls (six wires)
RCD-24
Derating Graph
(Ambient Temperature)
1200
1100
1000
900
800
700
600
500
75
80
65
71
Natural Convection
Specifications
( typical at 25°C, nominal input voltage, rated output current unless otherwise specified )
Input Voltage (absolute maximum)
Recommended Input Voltage
Input Filter
Output Current Accuracy
(Vin = 24DC)
Internal Power Dissipation
Output Current Stability
Output Ripple and Noise (20MHz BW)
Vin=36V, Vout =1-9 LEDs
Temperature Coefficient
Maximum Capacitive Load
Operating Frequency
Efficiency at Full Load
Short Circuit Protection
www.recom-international.com
40VDC max
5V min. / 24V typ. / 36VDC max
6V min. / 24V typ. / 36VDC max
Capacitor
±1% typ, ±3% max.
±2% typ, ±5% max.
800mW max
±1% max
120mVp-p max
200mVp-p max
±0.015%/°C max
300mA-700mA
1A-1.2A
300mA-700mA
1A-1.2A
Worst case load of 5 LEDs
Vin=36V, Vout =1-9 LEDs
300mA-700mA
1A-1.2A
-40°C~+85°C ambient
300mA-700mA
1A-1.2A
100μF
210kHz min/ 260kHz typ/ 300kHz max
350kHz min/ 450kHz typ/ 550kHz max
96% max.
Regulated at rated output current
continued on next page
REV:1/2010
Output Current (mA)
85
350
300
-40 -20 0 20 40 60 80 100
Ambient Temperature (°C)
Refer to Application Notes
I-53
RECOM [ RECOM INTERNATIONAL POWER ]
