LIGHTLINE
DC/DC-Converter
with 5 year Warranty
RCD-24/PL
SMD Constant Current LED Driver
Built-in Class A or Class B EMC Filter
Wide Input and Output Voltage Range
Digital PWM and Analogue Voltage Dimming
Short Circuit and Overtemperature Protected
Low Cost
EN/RAILWAYS Certified
5 Year Warranty
Features
Regulated
Converters
Selection Guide
Input Voltage (absolute maximum) 40VDC max
Recommended Input Voltage 6V min. / 24V typ. / 36VDC max
Input Filter Suffix /A Capacitor
Suffix /B Class B with Pi Filter
RCD-24-1.00/PL/A Class A with Pi Filter
Output Current Accuracy (Vin=24V) 300-700mA ±2% typ, ±3% max
1000mA ±3% typ, ±5% max
Internal Power Dissipation Worst case load of 5 LEDs (300-700mA) 700mW max.
Worst case load of 8 LEDs (1000mA), Vin=36V 1.6W typ.
Output Current Stability Vin = 36V, Vout = 1-9 LEDs (300-700mA) ±1% max
Vin = 36V, Vout = 1-8 LEDs (1000mA) ± 1.5% max.
Output Ripple and Noise (20MHz BW) Vin=36V, Vout =1-9 LEDs (300-700mA)
Vin=36V, Vout =1-8 LEDs (1000mA) 300mVp-p max
Temperature Coefficient -40°C to +85°C ambient ±0.015%/°C max
Maximum Capacitive Load 100μF
Operating Frequency 300-1000mA 212kHz min/ 250kHz typ/ 280kHz max
Efficiency at Full Load 300-700mA 96% typ.
Vin=36V, Vout=8 LEDs (1000mA) 94% typ.
Short Circuit Protection Regulated at rated output current
Operating Temperature Range 300/350mA -40°C to +85°C
500mA -40°C to +80°C
600/700mA -40°C to +75°C
1000mA -40°C to +65°C
Storage Temperature Range -55°C to +125°C
Relative Humidity 5% to 95% RH, non-condensing
continued on next page
Specifications (typical at 25°C, nominal input voltage, rated output current unless otherwise specified )
Description
The RCD-24-xxx/PL series is a step-down constant current source designed for driving high power LEDs.
The converter uses a pinless SMD open frame design to reduce cost and size. Output currents available are
300mA, 350mA, 500mA, 600mA, 700mA and 1000mA with either Class A (Suffix /A) or Class B (suffix /B)
built-in EMC filtering. Despite its compact size, the RCD-PL 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 ambient operating
temperature and is designed for strip lighting, wall washers and flourescent tube replacement designs, where
a low profile and narrow width are demanded.
Part Input Output Output Dimming Mounting
Number Range Current Voltage Control Style
(VDC) (mA) (Vmin-Vmax)
RCD-24-0.30/PL* 4.5-36V 0-300 2-35 Digital + Analogue Pinless SMD
RCD-24-0.35/PL* 4.5-36V 0-350 2-35 Digital + Analogue Pinless SMD
RCD-24-0.50/PL* 4.5-36V 0-500 2-35 Digital + Analogue Pinless SMD
RCD-24-0.60/PL* 4.5-36V 0-600 2-35 Digital + Analogue Pinless SMD
RCD-24-0.70/PL* 4.5-36V 0-700 2-35 Digital + Analogue Pinless SMD
RCD-24-1.00/PL/A 6-36V 0-1000 2-32 Digital + Analogue Pinless SMD
* /A for EMC Class A input Filter add -R for Tape and Reel Packaging e.g. RCD-24-0.35/PL/B-R
* /B for EMC Class B input Filter
Note: RCD-24-1.00/PL/A only available with Class A Filter
Output Current (mA)
700
60
20 40 100
300
Ambient Temperature (°C)
080
-20
-40
350
600
500
75
80
85
1000
Natural Convection
65
Constant
Current LED
Driver
EN-50121-3-2 Certified
EN-60950-1 Certified
UL-60950-1 Certified
RoHS
2011/65/EU
6/6
E358085
Refer to Application Notes
Derating-Graph
(Ambient Temperature)
www.recom-power.com L-9REV: 1/2016
RCD-PL
LIGHTLINE
DC/DC-Converter
RCD-24-PL
Series
Specifications (typical at 25°C, nominal input voltage, rated output current unless otherwise specified )
Dimensions 31.0 x 11.4 x 6.6mm
Weight 1.9g
Packing Quantity 12 pcs per Tube / 400 pcs per Reel
Reflow Soldering Profile 265°C/10 sec max
MTBF (using MIL HDBK 217F) +25°C >600 khours
PWM Dimming and ON/OFF Control (Leave open if not used)
Remote ON/OFF DC/DC ON Open or 0V<Vr<0.6V
Threshold Voltages DC/DC OFF (Standby) 0.6<Vr<2.9V
DC/DC OFF (Full Shutdown) 2.9V<Vr<6V
Remote Pin Drive Current Vr=5V 1mA max
Quiescent Input Current in Shutdown Mode Vin=36V 200μA max
Recommended PWM Frequency For Linear Operation 200Hz
(measured 10%~90% Dimming) Maximum Frequency 1000Hz
Analogue Dimming Control (leave open if not used)
Input Voltage Range 300-1000mA -0.3V - 15V
Control Voltage Range Limits (see Graph) 300-1000mA / Full On 0.13V ± 50mV
300-700mA / Full Off 4.2V ± 150mV
1000mA / Full Off 4.35V ±100mV
Analogue Pin Drive Current 300-1000mA / Vc=5V 0.2mA max.
Environmental
Shock / Vibration EN61373
EMC Railways EN50121-3-2:2006
Conducted Emissions 300-1000mA (/A Suffix) EN55022, Class A
300-700mA (/B Suffix) EN55022, Class B
Radiated Emissions EN55022, Class B
ESD EN61000-4-2, Criterion A
Radiated Immunity EN61000-4-3, Criterion A
Fast Transient EN61000-4-4, Criterion A
Conducted Immunity EN61000-4-6, Criterion A
Typical Characteristics
Efficiency (%)
100
20
10
Output Voltage (V)
50
30
0
Vin = 24V, Iout = 300~1000mA
Efficiency (%)
100
20
10
Output Voltage (V)
50
30
0
Vin = 32V, Iout = 300~1000mA
Note:
1. All LED Drivers may not be used without a load. They must be switched on the primary side only.
Noncompliance may damage the LED or reduce its lifetime.
2. It is not possible to parallel the drivers to increase the current.
L-10 www.recom-power.comREV: 1/2016
RCD-PL
Analogue Dimming
Digital Dimming
1
0
PWM Digital Control Signal
Output Current (LED appears dim) Output Current (LED appears bright)
PWM Digital Control Signal
1
0
200Hz
Typ.
200Hz
Typ.
LIGHTLINE
DC/DC-Converter
RCD-24-PL
Series
Package Style and Pinning
Dimming
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
Pad Connections RCD-24-PL Series
Pad # Out Comments
1 +Vin DC Supply
2 Analogue Dimming Leave open if not used
3 PWM/ON/OFF Leave open if not used
4 GND Do not connect to -Vout
5 -Vout LED Cathode Connection
6 +Vout LED Anode Connection
Bottom View
PCB Layout Top View
6
5
1
3
2
4
Class A Version Class A (1.00A-Version)
Class B Version
2.54
2 x 2.5 SMT Pad x 6
6.6
2.54
25.4
31.00
11.4
7.6
1.9
1mm half Via x 6
6.6
9.0
Voltage Control (0-15V max)
Output Current
100%
0%
1V 2V 3V 4V 15V
0.13V
Analogue Input Voltage
10V
300-700mA
4.2V
1000mA
4.35V
www.recom-power.com L-11REV: 1/2016
The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit
written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer
shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.
Note:
3. If PWM dimming is used, a capacitor on output in parallel is required.
RCD-24-PL
Vin
GND
Analogue
Vout-
Vout+
PWM ON/OFF
C1
P/N C1
RCD-24-0.30/PL/X
33μFRCD-24-0.35/PL/X
RCD-24-0.50/PL/X
RCD-24-0.60/PL/X 47μF
RCD-24-0.70/PL/X
RCD-24-1.00/PL/A 150μF
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
RECOM:
RCD-24-0.30/PL/A RCD-24-0.30/PL/A-R RCD-24-0.30/PL/B RCD-24-0.30/PL/B-R RCD-24-0.35/PL/A RCD-24-
0.35/PL/A-R RCD-24-0.35/PL/B RCD-24-0.35/PL/B-R RCD-24-0.50/PL/A RCD-24-0.50/PL/A-R RCD-24-0.50/PL/B
RCD-24-0.50/PL/B-R RCD-24-0.60/PL/A RCD-24-0.60/PL/A-R RCD-24-0.60/PL/B RCD-24-0.60/PL/B-R RCD-24-
0.70/PL/A RCD-24-0.70/PL/A-R RCD-24-0.70/PL/B RCD-24-0.70/PL/B-R RCD-24-1.00/PL/A RCD-24-1.00/PL/A-R