POWER SUPPLY
SOLUTIONS
Drivers Speed Power LED Lighting Designs
For further information, including the RCD-24 Datasheet and the
Recom Selection Guide Shortform, please please complete the
reply slip or visit
http://www.arrowne.com/innov/in220/f_1473.shtml
4
A new series of integrated, high-efficiency and compact
power LED drivers from Recom International will
significantly simplify the implementation of LED-based
lighting applications.
The Recom International RCD-24 series of step-down constant
current sources has been specifically designed to provide a
compact, fully featured and highly efficient solution for driving
high-power white LEDs.
Offering current outputs of 300mA, 350mA, 500mA, 600mA and
700mA, the RCD-24 series allows designers to implement lighting
designs using LEDs from a variety of manufacturers without the
need for additional external components. Furthermore, a compact
form factor means that the drivers can be incorporated directly
into the LED lamp fixtures. Alternatively, designers can mount the
modules separately so that they can be installed or exchanged as
easily as any other light fitting.
Despite their compact size, Recom’s RCD-24 drivers integrate a high
level of functionality, including both analogue and PWM/digital
dimming control. The dimming controls are fully independent and
can be combined to offer maximum design flexibility. There is also
a remote on/off function for energy saving applications.
The new drivers are based on a non-isolated, buck regulator
topology and feature a very wide DC input voltage range of 4.5V
to 36V to accommodate the widest possible range of design
requirements. With efficiency levels up to 97%, the internal power
losses are so low that RCD-24 devices can be used in ambient
temperatures of up to +85°C at full load. The high-efficiency buck
regulator topology is also behind the compact construction, with
each driver measuring just 22.1mm x 12.6mm x 8.5mm.
Each module in the new series can be supplied with either six pins
or with four 110mm flying pre-tinned leads, ideal for pcb-less
applications. Operating temperature range (without derating) is
from -40°C to either +71°C or +85°C depending on the model
chosen. EMC compatibility with EN 55022 Class B is easily achieved
through the addition of just two further components, with another
four ceramic capacitors providing compatibility with EN 61000-4-2,
-3, -4 and -6.
Reliability is up to 516k hours, which is longer than the LED the
RCD series drives.
Features
U
Fully integrated power LED driver
U
Constant current, single output
U
Wide input voltage range: 4.5V to 36V
U
Output current options:
- 0mA to 300mA
- 0mA to 350mA
- 0mA to 500mA
- 0mA to 600mA
- 0mA to 700mA
U
Maximum efficiency: 97%
U
PWM/digital dimming: 20Hz to 200Hz
U
Analogue voltage dimming
U
Remote on/off function
U
Short circuit protection
U
Dimensions: 22.1mm x 12.6mm x 8.5mm
U
Available with pins or leads
U
MTBF up to 516,000 hours
Applications
U
DC supply LED-based lighting applications including:
- Traffic lights
- Railway signalling
- Industrial, commercial and architectural lighting
- Commercial vehicles
- Aircraft interior illumination
- Lighting for harsh and hazardous environments
- Marine
- Security
Compact, efficient and fully featured drivers
ENQUIRY 1473
Recom RCD-24 Datasheet and Selection Guide
Shortform available! Please complete the reply
slip or visit the weblink below.
