Download PrevaLED® Flat AC Light Engine

PrevaLED® Flat AC Light Engine
Technical Specifications
1. Introduction
1.1. System Overview
1.2. Nomenclature
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2. Optical considerations
2.1. Touch protect accessory
2.2. Light Distribution
2.3. Light Modulation
2.4. Color temperature
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3. Ingress protection
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4. Electrical considerations
4.1. Wiring information
4.2. Wiring Diagram
4.3. Inrush current and system installation
4.4. Electrostatic discharge (ESD)
4.5. Controllability
4.6. Power as a function of voltage
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5. Thermal considerations
5.1. Thermal power values
5.2. Thermal shutdown
5.3. Thermal interface material and accessories
5.4. Tc point location and temperature measurement
5.5. Location of Tc point
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6. Lifetime and thermal behavior
6.1. Cooling
6.2. Lifetime as a function of temperature
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7. Mechanical considerations
7.1. Outline drawing
7.2. Protection from Corrosion
7.3. Mechanical protection of the light engine
7.4. Mounting
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8. Norms and standards
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LED482
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1 INTRODUCTION
1.1 System Overview
The brightness levels of today’s LEDs are opening the door for
the use of LEDs in general lighting applications that require high
lumen output levels. Building an LED-based luminaire poses a
new set of technical challenges, among them new optical
requirements, providing adequate thermal management for
stable operation and dealing with the ever-improving
performance of LEDs. Nevertheless, LED technology also offers
an unknown wealth of possibilities, providing access to
unprecedented levels of performance and new ways of
integration.
OSRAM’s PrevaLED® family of LED light engines addresses the challenges of LED-based lighting while
providing users with great performance and flexibility at the same time. Enabled by the application of LED
technology, PrevaLED® is aiming to push the envelope of what is possible in terms of performance and
simplicity.
The PrevaLED® Flat AC series of light engines is ideally suited for use in highly diffuse wall-mounted and
ceiling-mounted luminaires in decorative, hospitality or domestic applications.
Benefits
The PrevaLED® Flat AC light engines provide several specific benefits for these applications:
 With the LED sources and the electronic control circuitry placed on the same board and packaged
into a unique compact design, they offer an integrated system solution.
 Little design- in effort is required due to the integration of the electronic control circuitry into the
light engine, offering a new level of simplicity.
 They provide high performance in terms of both the complete system efficiency and the quality
of light, enabling the design of ultra-slim, diffuse luminaires.
 They allow for the simple and flexible application of LED technology in existing and new
installations.
 A touch – safe accessory can be purchased along with the light engine to allow for the safe
operation in luminaires that can be opened by the end user
PrevaLED® Flat AC is available with a diameter of 170 mm or 240mm and a color temperature of 2700K,
3000K, 3500K and 4000K.
CRI>90 available in 2700K & 3000K. CRI>80 available in 3500K & 4000K.
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1.2 Nomenclature
PrevaLED® Flat AC light engine follows a consistent naming convention for identifying key parameters of
the light engine. The nomenclature of the LED light engine is as follows:
2 OPTICAL CONSIDERATIONS
2.1 Touch Protect Accessory
The touch protect accessory is UL 5VA flammability rated. It is mandatory to use the touch protect
accessory for all retrofit kit installations.
Note: In applications where OEMs prefer not to use the touch protect accessory care should be taken to
ensure the Fixture meets UL conditions of acceptability and fixture level flammability rating.
2.2 Light Distribution
The light distribution of PrevaLED® Flat AC light engines is shown below. They create a beam angle of 115°
FWHM(full width at half maximum).
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2.3 Light modulation
The AC technology of the PrevaLED® Flat AC results in a light modulation with a frequency of 120Hz. The
resulting light modulation has a depth of 30%.
OSRAM provides mechanical (3D files) and optical simulations data (IES files) to support customized
reflector designs. Files can be requested via your local sales representative
2.4 Color temperature
The PrevaLED® Flat AC series is currently available in 2700K, 3000K, 3500K and 4000K. The color
coordinates within the CIE 1931 color space are given below.
CCT
CRI
Cx
Cy
2700
90
0.460
0.405
3000
90
0.435
0.399
3500
80
0.407
0.391
4000
80
0.379
0.375
Within each available color temperature, the PrevaLED® Flat AC series provides a maximum color variation
of three threshold value units (MacAdam steps). The following diagram shows these threshold values
within the CIE 1931 color space.
3 INGRESS PROTECTION
The PrevaLED® Flat AC light engines have no ingress protection rating. Please ensure that the housing of
your luminaire provides the IP protection required for your application. To achieve an ingress protection
rating of IP20, it is possible to combine PrevaLED® Flat AC light engines with the available touch protection
accessory.
For further information, please have a look at the technical application guide “IP codes in accordance with
IEC 60529”, which can be downloaded at www.osram.com.
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4 ELECTRICAL CONSIDERATIONS
4.1 Wiring information
The PrevaLED® Flat AC light engines can be directly connected to mains voltage (120V, 50/60Hz). The used
input clamps can handle solid or flexible wire with cross-section of 0.5 to 1.5mm2 (AWG20-16). The use of
solid wire is recommended.
Solid wire:
Plug Directly
Flexible wire:
Lightly press the push button of the
connection clamp. Insert the flexible wire
To press/release the clamps, please use a small screw driver or a wago operating tool type 206-861
Please insert the wires in 0° orientation to the PCB.
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4.2 Wiring Diagram
Notes:



The connector is designed for three poke-in release cycles.
Due to the fact that you are handling mains voltage, you must not hot-plug the light engine.
The installation of LED light engines needs to be carried out in compliance with all applicable
electrical and safety standards. Only qualified personnel should be allowed to perform
installations.
4.3 Inrush current and system installation
Due to its electronic construction, the PrevaLED® Flat AC light engines have a minimum inrush current. In
system installations, the number of light engines which can be attached to one circuit is limited by the
voltage drop regulations and the used cross-section of the connecting wire.
4.4 Electrostatic discharge (ESD)
PrevaLED® Flat AC light engines fulfill the requirement of the immunity standard IEC/EN 61547. Please
note that an electrostatic discharge of greater than 2kV HBM can cause damage, ranging from
performance degradation to complete device failure. OSRAM recommends that all PrevaLED® Flat AC light
engines are handled and stored using appropriate ESD protection methods
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4.5 Controllability
Dimmer Compatibility list
Due to the integrated driver electronics, a good compatibility with the following phase-cut Dimmers can
be ensured
Compatible Dimmers
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LUTRON S-603P (Leading-edge dimmer)

LEVITON 6633-P (Leading-edge dimmer)
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LEVITON 6615-POW (Trailing-edge dimmer)
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LUTRON S-600 (Leading-edge dimmer)
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LUTRON S-600P (Leading-edge dimmer)
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LUTRON DIVA DVELV-303P (Trailing-edge dimmer)

LEVITON DECORA 6631 (Leading-edge dimmer)

LEVITON VIZIA VPE-06 (Trailing-edge dimmer)
Note: The absence of a dimmer from the above chart does not necessarily imply incompatibility. Please
reference dimmer manufacturer’s instructions for installation and test dimmers for compatibility if not
listed in the above table.
4.6 Power as a function of voltage
The nominal voltage of the light engine is 120V. The operation range is 108-132V. For voltage variations,
the light engine is tested according to IEC/EN 61000-3-3. Please note that the power of the light engine
changes over the voltage range as an example for 1500lm PrevaLED® Flat AC
Input Power Vs Input Voltage
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Input Power
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11
10
9
8
100
105
110
115
120
125
130
135
140
145
150
Input Voltage
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5 THERMAL CONSIDERATIONS
The proper thermal design of an LED luminaire is critical for achieving the best performance and ensuring
the longest lifetime of all components. Due to the high efficacy of PrevaLED® Flat AC light engines, only a
partial amount of the introduced electrical power has to be dissipated through the back of the light engine.
The thermal power that has to be dissipated for PrevaLED® Flat AC light engines is given below.
5.1 Thermal Power values
Rated Input
current
[mA]
Typical
Thermal power
at rated input
current [W]*
Max Thermal
power at rated
input current [W]*
Max allowable
thermal resistance
at rated input
current (Rth
[K/W])**
PL-FLAT-AC-1500-927-120V-G1
394
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16.5
2.73
PL-FLAT-AC-1500-930-120V-G1
371
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16.5
2.73
PL-FLAT-AC-1500-835-120V-G1
371
15
16.5
2.73
PL-FLAT-AC-1500-840-120V-G1
371
15
16.5
2.73
PL-FLAT-AC-2500-927-120V-G1
476
25
27.5
1.64
PL-FLAT-AC-2500-930-120V-G1
449
25
27.5
1.64
PL-FLAT-AC-2500-835-120V-G1
449
25
27.5
1.64
PL-FLAT-AC-2500-840-120V-G1
449
25
27.5
1.64
Product Reference
Value measured at the Tc point at a reference temperature of 70°C
Value measured at the rear of the luminaire at an ambient temperature of 25°C
5.2 Thermal Shutdown
A thermal protection feature serves to achieve the best possible lifetime of the module and to protect it
from damage by overheating. The characteristics of the thermal protection are shown in the following
diagram.
120
100
Power(%)
80
60
40
Area of active
thermal protection
20
0
0
20
40
60
80
100
120
Tc(°C)
Tc max=100C
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5.3 Thermal interface material and other accessories
Due to the high efficiency of the PrevaLED® Flat AC modules, the use of a thermal interface material (TIM)
is not required. By using a TIM, an even better thermal connection of the light engine to the heat sink can
be achieved.
Note: A thermal design must always be confirmed by performing a thermal measurement in steady-state
condition.
5.4 Tc point location and temperature measurement
The Tc point is the location to check if the chosen cooling solution (heat sink and TIM) is sufficient to
ensure the light engine performance. Tc according to IEC 62031 stands for case temperature, which is
the highest permissible temperature measured at the Tc point. The Tc point is the location where the Tc
is measured (located on the top surface of the light engine as shown in the below picture).
5.5 Location of the Tc point
Tp (performance temperature) is the reference temperature at which the datasheet values are
applicable.
A correct temperature measurement can, for example, be performed with a thermocouple.
Notes: Please keep in mind that you need a direct contact between the thermocouple and the PCB.
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Thermocouple
Use a thermocouple that can be glued onto the LED module. Make sure that the thermocouple is fixed
with direct contact on the Tc point. Examples of suitable thermocouples.
Different thermocouples
6 LIFETIME AND THERMAL BEHAVIOR
6.1 Cooling
PrevaLED® Flat AC light engines do not necessarily need to be attached to a heat sink. They are thermally
independent. Depending on the application, however, a suitable cooling solutions (e.g. a heat sink or
luminaire housing) might be needed to keep the Tc point temperature below the allowed maximum and
therefore ensure a safe and reliable operation.
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6.2 Lifetime as a function of temperature
For the definition of the lifetime of a light engine, please refer to IEC/PAS 62717, where the following
types are defined (examples):
L10C10 is the lifetime where the light output is 0% for 10% of the light engines.
L70F50 is the lifetime where the light output is ≥70% for 50% of the light engines. F value includes reduction
of lumen output over time including abrupt degradation (flux=0).
L70B50 is the lifetime where the light output is ≥ 70% for 50% of the light engines. B value includes only
gradual reduction of lumen output over time (not the abrupt flux degradation),
If the performance temperature is maintained at 75°C, PrevaLED® Flat AC light engines have an average
lifetime of 50,000* hours (L70B50). For safety the maximum temperature measured at the Tc point must
not exceed 100°C
Note: Higher Tc temperatures lead to a shorter lifetime of the PrevaLED® Flat AC light engines. Moreover,
the failure rate will also increase.
7 MECHANICAL CONSIDERATIONS
7.1 Outline drawing
The following schematic drawing provides further details on the dimensions of PrevaLED® Flat AC light
engines. For 3D files of the light engines, please contact your local sales personnel
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7.2 Protection from corrosion
To protect electronics parts (such as LEDs) from corrosion, a corrosive atmosphere around the
components has to be avoided. In case of LEDs, H2S, for example, is a highly corrosive substance which
can lead to a drastically shortened product lifetime. The source for H2S are sulfur-cross-linked polymers,
such as rubber. To ensure the absence of H2S, it is recommended to use peroxide-cross-linked materials,
which are available on the market as an alternative to sulfur-cross-linked versions. Avoidance of corrosion
by moisture has to be ensured by the appropriate protection of the luminaire housing.
7.3 Mechanical protection of the light engine
PrevaLED® Flat AC light engine should not be exposed to strong mechanical stress. Please apply force only
to the dedicated mounting positions.
For operation in damp, wet or dusty environments, the user has to make sure that an adequate ingress
protection is chosen. The LED module has to be protected by a suitable IP classification of the luminaire
housing. Please consider the luminaire standard IEC 60598-1 as well as the different requirements.
7.4 Mounting
Unlocked position
Locked position – screw insertion for permanent fixation.
To fix a PrevaLED® Flat AC light engine to a heat sink, you can use M3 cylinder head screws according to
DIN 7984 or DIN EN ISO 4762. The allowed torque is 0.6Nm (+/- 0.1Nm).
Retrofit Kit
For Retrofit kit Applications please refer to the retrofit kit installation requirements.
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8 NORMS AND STANDARDS
Safety: IEC/EN 62031 IEC/EN 60598-1
Photo biological safety: IEC/EN 62471 Risk group: 1
Electromagnetic compatibility: FCC Part 15 Class B
Approvals: UL 8750 Recognized
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