Datasheet

www.recom-international.com
137
2008
Constant
Current
Single Output
INNOLINE
DC/DC-Converter
RCD-24
Series
●
Constant Current Output
●
Power LED Driver
●
Wide Input Voltage Range
●
PWM/Digital Dimming and Analogue
Voltage Dimming
●
Short Circuit Protected
●
96% Efficiency
Features
Regulated
Converters
Selection Guide
Part Input Output Output Dimming Mounting
Number Range Current Voltage Control Style
(VDC) (mA) (V)
RCD-24-0.30 4.5-36V 0-300 2-32 Digital + Analogue PCB
RCD-24-0.35 4.5-36V 0-350 2-32 Digital + Analogue PCB
RCD-24-0.50 4.5-36V 0-500 2-32 Digital + Analogue PCB
RCD-24-0.60 4.5-36V 0-600 2-32 Digital + Analogue PCB
RCD-24-0.70 4.5-36V 0-700 2-32 Digital + Analogue PCB
RCD-24-0.30/W 4.5-36V 300 2-32 none Wired
RCD-24-0.35/W 4.5-36V 350 2-32 none Wired
RCD-24-0.50/W 4.5-36V 500 2-32 none Wired
RCD-24-0.60/W 4.5-36V 600 2-32 none Wired
RCD-24-0.70/W 4.5-36V 700 2-32 none Wired
Input Voltage (absolute maximum) 36VDC max.
Recommended Input Voltage 5V min. / 24V typ. / 36VDC max.
Input Filter Capacitor
Output Voltage Range Vin=36V 2V min. / 32V max.
Output Current Range Vin - Vout >1.5~4V 300mA-700mA
Output Current Accuracy 300mA-700mA ±2% typ.
Internal Power Dissipation Load of 5 LEDs 700mW
Output Current Stability Vin=36V, Vout =2~32V ±1% max
Output Ripple and Noise (20MHz limited) Vin=36V, Vout =2~32V 120mVp-p max
Temperature Coefficient -40~+85°C ambient ±0.015%/°C max.
Maximum Capacitive Load 100µF
Operating Frequency 210 kHz min/ 260kHz typ./ 300kHz max
Efficiency at Full Load 97% max.
Short Circuit Protection Regulated at rated output current
Operating Temperature Range 300mA/350mA -40°C to +85°C
(free air convection) 500mA -40°C to +80°C
600mA -40°C to +75°C
700mA -40°C to +71°C
Storage Temperature Range -55°C to +125°C
Maximum Case Temperature 100°C
Thermal Impedance Natural Convection 55°C/Watt
continued on next page
Specifications
( typical at 25°C, nominal input voltage, rated output current unless otherwise specified )
Description
Rev.2
Derating Graph
(Ambient Temperature)
RCD-24-0.35/0.70
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 and 700mA 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 of 85°C. A wired version is also available.