powerful solutions for solid state lighting digital light

Rev 0 – August 2012ROAL CONFIDENTIAL

MESO LED Driver Product Presentation

Digital Light

Powerful Solutions for Solid State Lighting


] MESO Features

Features•Intelligent •Robust Design•Compact•WW Safety Approvals

Benefits•Programmable Output Current •< 20% THD, down to 50% of Rated Output Load•Very Flexible and suitable for several applications•Compatible with DALI Standard (IEC 62386) •Long Life Time •Easy to be integrated in the LED Fixtures•Ease Safety Approvals Cycles on final LED Fixture

2 Case Versions


Case Detail

Flying Leads1.58 x 1.02 x 6.48” (40 x 26 x 164.5 mm)

Side and Bottom Terminal BlocksFits Standard 4in Junction Box

Standard Mounting StudsLow Profile - 1in Height

4.94 x 2.89 x 1.00” (125.5 x 73.50 x 25.4 mm)


4 Main Models –Hundreds of Combinations


] MESO Block Diagram Overview


Analog Dimming Option

Dim input:• A dimming input can be used to adjust the output setting via

• a standard commercial wall dimmer• an external control voltage source (1 to 10VDC)• or a variable resistor when using the recommended number of LEDs. • 0-10V dimming can be programmed – Output turns off at 0V

• 100% to 10% dimming.

Ts: The Temperature input may be connected to a 100k NTC thermistor. The thermistor should be located on the LED assembly to monitor its temperature. If the temperature exceeds a predetermined set point, the output current of the module is automatically reduced to regulate the temperature of the LED at a safe level.


Digital Input Option

• The optional digital input replaces the Dim/Trim wires and has two operating modes:

DALI enabled: The digital input can be used to control the output of the LED Driver. The control interface is compatible with the DALI standard IEC 62386 when DALI enabled.

PWM enabled: The digital input accepts a pulse width modulated signal.


LED ARRAY COMPATIBILITY Example


Configuration example at Final Build

Current THD PF Lm fctr Luminus Flux Fixture

Setting (ma) % Light (lm)

420 17.30% 0.9 130% 1357.20 977.18

470 17.08% 0.9 140% 1461.60 1052.35

520 16.87% 0.91 150% 1566.00 1127.52

570 16.65% 0.92 160% 1670.40 1202.69

620 16.22% 0.94 180% 1879.20 1353.02


MESO Series a winner for all

• Supply Chain Management –• The SKU numbers are greatly reduced, eliminating custom parts. Maximizing

quantities lowers unit cost. Local Stock more practical with less risk!• LEADTIMES greatly reduced.

• Engineering –• Products can be qualified quickly. Specifications are met across different

setpoints. • Compatible with leading LED Arrays• Active Dimming tracks 10mA increment set points

• Lighting Designers –• More flexibility with Light Outputs

• Sales and Marketing• Can give customers more choices, less forecasting risk• 5 Year Warranty

• Quality –• Built to the same ROAL standards as previous Products

• Manufacturing • Built in a High Volume Factory experienced in Power Conversion

Rev 0 – August 2012

MESO ELECTRICAL SPECIFICATIONSPROGRAMMABLE DETAILS


] Electrical I/O Parameters

Input Parameters• Input Voltage: 120/240 /277 VAC nominal:• 90 - 305 VAC and Optional 150 – 400VDC• 47-63 Hz Frequency Range• Input Current: < 0.35A • Efficiency: 83% Min @ Nom VAC, Full load• Isolation: Reinforced / double • Insulation meets IEC/EN61347-2-13 Class II• Input Harmonics: Meets EN61000-3-2, 3 *• Input Power Factor:>90% *• Total Harmonic Distortion (THD): < 20% *

• *@ 50% to 100% load at 120/240VAC and 60% to 100% load at 277VAC

Output ParametersOutput Voltage: 12 – 56VDC (See model table for details)Output Current: 250mA to 1000mA (See model table for details)Ripple Current: <40% (P-P) of maximum Output Current with no dimmingOutput Accuracy: +/- 5% of set pointOutput Regulation: +/- 5% of max ratingOutput Over-Voltage, Over-Current and Short-Circuit Protection (hiccup), Over-Temperature and Auto RecoveryOutput Voltage Range Protection: If output voltage goes out of range, unit shuts down and latches after 5 attemptsStartup Time: <500 mS with no dimmer


Programmable Output

• The output characteristics of the MESO can be set by using the MESO Programming tool.

• The programming tool uses a proprietary digital interface so that once programmed, it cannot be changed by the ordinary user.

• The programming tool includes a series of switches to set the output current between 50% minimum (factory setting) and 100%. It also allows an adjustment to the output skew time or fade.

Programmable features: • Fade time of 0, 2, 5 or 10 seconds• Digital Input Option, DALI or PWM enabled• 0 – 10 or 1 – 10 Dimming• Iout settings: adjust Iout from 50% to 100%• Iout in 10mA increments


] EMC compliance and Safety

EMC ComplianceEmission TestsHarmonic Current Emissions EN61000-3-2Fluctuations and Flicker EN61000-3-3Conducted Emission 9kHz-30MHz EN55015 Radiated Emission 9kHz-30MHz EN55015 Radiated Emission 30MHz-300MHz EN55015Conducted and Radiated Emission measurement FCC CFR47-part 15/subpart BImmunity TestsEMC immunity requirements EN61547

(Equipment for general lighting purposes)ESD (Electrostatic Discharge) EN61000-4-2RF Fields Immunity EN61000-4-3Electrical Fast Transient EN61000-4-4Surge EN61000-4-5 Conducted RF EN61000-4-6Voltage Dips, short interruptions and Voltage Variations EN61000-4-11Non repetitive damped oscillatory transient, Ring wave ANSI C.62.41 Category A1


] Environmental & Mechanical

EnvironmentalConvection CooledOperating Case Temperature:

Metal -30°C to 75°C without deratingPlastic Case -30°C to 90°C without derating

LED Driver Suitable for “Damp Location”Shock & Vibration Test IEC 60068Long Life Time

Safety Agency Approvals (Pending)UL Recognized ANSI / UL8750, 1st Ed., CAN/CSA C22.2 N°337, 7th Ed.

Construction as per EN60950, 2° editionLED Driver Suitable for “DAMP Location”IEC/EN 61347-2-13 Particular Requirements for DC or AC, Supplied electronic control gear for LED Modules IEC/EN 62384 DC or AC Supplied electronic control gear for LED Modules – Performance Requirements

ENEC Mark

CE Mark


Thank you for your attention

powerful solutions for solid state lighting digital light

Documents