Datasheet

www.recom-power.com L-3REV: 1/2016
RCD-24
EN-50121-3-2 Certified
EN-60950-1 Certified
UL-60950-1 Certified
Constant
Current LED
Driver
● UL/ RAILWAYS Certified Constant Current
LED Driver
● Wide Input and Output Voltage Range
● Digital PWM and Analogue Voltage Dimming
● Short Circuit Protected
● Pinned or Wired Versions
● IP67 rated for /W Version
● 96% Efficiency
● 5 year Warranty
Features
Regulated
Converters
Selection Guide
Input Voltage (absolute maximum) 40VDC max
Recommended Input Voltage 300mA-700mA 5V min. / 24V typ. / 36VDC max
1000mA-1200mA 6V min. / 24V typ. / 36VDC max
Input Filter Capacitor
Output Current Accuracy 300mA-700mA ±1% typ, ±3% max.
(Vin = 24DC) 1000mA-1200mA ±2% typ, ±5% max.
Internal Power Dissipation Worst case load of 5 LEDs 800mW max
Output Current Stability Vin=36V, Vout =1-9 LEDs ±1% max
Output Ripple and Noise (20MHz BW) 300mA-700mA 150mVp-p max
Vin=36V, Vout =1-9 LEDs 1000mA-1200mA 300mVp-p max
Temperature Coefficient -40°C to +85°C ambient ±0.015%/°C max
Maximum Capacitive Load 100μF
Operating Frequency 300mA-700mA 210kHz min/ 250kHz typ/ 280kHz max
1000mA-1200mA 350kHz min/ 450kHz typ/ 550kHz max
Efficiency at Full Load 96% max.
Short Circuit Protection Regulated at rated output current
continued on next page
Specifications (typical at 25°C, nominal input voltage, rated output current unless otherwise specified )
Description
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, 1000mA and 1200mA to make this
driver compatible with a wide range of LEDs applications. 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 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-rated wired version (/W) and a version with built-in reference output vol-
tage (/Vref) to power sensors or for easy analogue dimming.
Part Input Output Output Dimming Options Mounting
Number Range Current Voltage Control Style
(VDC) (mA) (Vmin-Vmax)
RCD-24-0.30
(a)(b)
4.5-36V 0-300 2-35 Digital + Analogue Vref Pins or Wired
RCD-24-0.35
(a)(b)
4.5-36V 0-350 2-35 Digital + Analogue Vref Pins or Wired
RCD-24-0.50
(a)(b)
4.5-36V 0-500 2-35 Digital + Analogue Vref Pins or Wired
RCD-24-0.60
(a)(b)
4.5-36V 0-600 2-35 Digital + Analogue Vref Pins or Wired
RCD-24-0.70
(a)(b)
4.5-36V 0-700 2-35 Digital + Analogue Vref Pins or Wired
RCD-24-1.00
(b)
6-36V 0-1000 3-31 Digital + Analogue Pins or Wired
RCD-24-1.20
(b)
6-36V 0-1200 3-31 Digital + Analogue Pins or Wired
(a)(b)
Standard is no suffix with PCB Pins.
(a)
Add suffix /Vref for pinned version with Vref output and analogue dimming
(b)
Add suffix /W for wired version without dimming control (four wires)
(b)
Add suffix /W/X1 for wired version with analogue dimming control (five wires)
(b)
Add suffix /W/X2 for wired version with PWM dimming control (five wires)
(b)
Add suffix /W/X3 for wired version with both analogue and PWM dimming controls (six wires)
(a)
Add suffix /W/Vref for wired version with Vref output and analogue dimming (six wires)
Derating-Graph
(Ambient Temperature)
Output Current (mA)
700
60
20
40
100
300
Ambient Temperature (°C)
0
80
-20
-40
Natural Convection
350
600
500
71
75
80
85
1000
1200
800
900
1100
65
Refer to Application Notes
E358085
LIGHTLINE
DC/DC-Converter
with 5 year Warranty
RoHS
2011/65/EU
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