Application Guide: 50W MR 16 LED Replacement. OSRAM OS June 2012

Transcription

1 Application Guide: 50W MR 16 LED Replacement OSRAM OS June 2012

2 General Energy Star Luminaire Requirements Correlated Color Temperature (CCT) Nominal CCT 2700K K 3500K 4000K Color Maintenance Color Rendering Index (CRI) Dimming The luminaire must have one of the following designated CCTs and fall within the 7-step chromaticity quadrangles as defined in the Appendix. Target CCT (K) and tolerance 2725 ± ± ± ± 275 Target Duv and tolerance ± ± ± ± The change of chromaticity over the minimum lumen maintenance test period (6000 hours) shall be within on the CIE 1976 (u,v ) diagram. Minimum CRI (Ra) of 80. In addition, the R9 value must be greater than 0. Lamps may be dimmable or nondimmable. Product packaging must clearly indicate whether the lamp is dimmable or not dimmable. Manufacturers qualifying dimmable products must maintain a Web page providing dimmer compatibility information. Minimum efficacy, light output, CCT, CRI, and power factor of dimmable lamps will be confirmed with the lamp operated at full power. Warranty Allowable Lamp Bases MR Page 2 A warranty must be provided for lamps, covering material repair or replacement for a minimum of three (3) years from the date of purchase. Must be a lamp base listed by ANSI.

3 General Energy Star Luminaire Requirements Power Factor Minimum Operating Temperature LED Operating Frequency Electromagnetic and Radio Frequency Interference Audible Noise Transient Protection Operating Voltage For lamp power 5 W and for low voltage lamps, no minimum power factor is required For lamp power >5 W, power factor must be 0.70 Note: Power factor must be measured at rated voltage. Integral lamp shall have a minimum operating temperature of -20 C or below. 120 Hz Note: This performance characteristic addresses problems with visible flicker due to low frequency operation and applies to steady-state as well as dimmed operation. Dimming operation shall meet the requirement at all light output levels. Integral LED lamps must meet the appropriate FCC requirements for consumer use (FCC 47 CFR Part 15). Integral lamp shall have a Class A sound rating. Power supply shall comply with IEEE C , Class A operation. The line transient shall consist of seven strikes of a 100 khz ring wave, 2.5 kv level, for both common mode and differential mode. Lamp shall operate at rated nominal voltage of 120, 240 or 277 VAC, or at 12 or 24 VAC or VDC. MR Page 3

4 MR 16 Energy Star Criteria Item Definition Minimum luminous efficacy - Lamp diameter 20/8 inch Color Spatial Uniformity Maximum lamp diameter Maximum overall length (MOL) Minimum center beam intensity - MR16 lamps Lumen Maintenance Rapid-Cycle Stress Test ENERGY STAR Requirements Directional lamp means a lamp having at least 80% light output within a solid angle of π sr (corresponding to a cone with angle of 120 ) 40 lm/w The variation of chromaticity within the beam angle shall be within from the weighted average point on the CIE 1976 (u,v ) diagram. Not to exceed target lamp diameter Not to exceed MOL for target lamp Link to online tool at BeamTool.zip (Note: maximum allowable beam angle = 50.) 70% lumen maintenance (L70) at 25,000 hours of operation Cycle times must be 2 minutes on, 2 minutes off. Lamp will be cycled once for every two hours of required minimum L70 life. MR Page 4

5 Benchmark - Philips Halogen MR16 Lamps Watts (W) Spot Size Lumens Efficacy (Lm/W) Approx. CBCP CCT (K) Rated Average Life 1 (hrs) Rated average life is the length of operation (in hours) at which point an average of 50% of the lamps will still be operational and 50% will not. MR Page 5

6 Benchmark LED Products on the Market Lumens Wattage (W) Efficiency (lm/w) Beam Angle CCT LEDZworld 450 7W K CRS Electronics W , 25, 40 K Lednovation K Lednovation K LSG , 25 K Samsung , 25 K MR Page 6

7 OSRAM Opto Design Goals Target Flux Junction Temp. Optical Efficiency (est.) Electrical Efficiency (est.) System Power System Efficacy Lifetime CCT CRI Beam Angle Min. CBCP Replacement > 500 lm ~ 80 C 85% 85% < 7W > 70 lm/w 50,000 hrs K >80 12 and W 50W equivalent MR Page 7

8 LED Selection Square SSL Chip area Thermal resistance (Rth) max Package size Efficiency (K CRI80; Ts=25 C) Radiation Pattern Max. Current Max. Junction Temp. Typ. Vf Product target 2 mm² 5.2 K/W 3 mm x 3 mm 350mA 80 or ma 125 C mA mA Efficiency (lm/w) 1 mm² 9 K/W 3 mm x 3 mm ~98 350mA ma 125 C 3.08 V@ 350mA Cost ($/lm) MR Page 8

9 LED Options LED Type Brightness Bin Current (ma) Forward Voltage (Vf) Tj ( C) Flux/LED (lm) LED System Flux (lm)* System Power (W)* System Efficacy (lm/w) KU Square MQ (205 lm, 700mA, 25C) * Driver Efficiency 85 % * Lens Efficiency 85% For solution thermally conductive plastic heat sink being considered (lightweight but higher Tj) MR Page 9

10 Square (Options) Tj = 85( C) LED Type Brightness Bin Current (ma) Forward Voltage (Vf) Tj ( C) Flux/LED (lm) LED System Flux (lm)* System Power (W)* System Efficacy (lm/w) Square MQ ( 25C) Square MQ ( 25C) Square MQ ( 25C) Square MQ ( 25C) MR Page 10 * Driver Efficiency 85 % * Lens Efficiency 85%

11 Square (Options) Tj = 100 ( C) LED Type Brightness Bin Current (ma) Forward Voltage (Vf) Tj ( C) Flux/LED (lm) LED System Flux (lm)* System Power (W)* System Efficacy (lm/w) Square MQ ( 25C) Square MQ ( 25C) Square MQ ( 25C) Square MQ ( 25C) MR Page 11 * Driver Efficiency 85 % * Lens Efficiency 85%

12 Heat Sink MR Page 12

13 Thermal Simulation Using Square Die Cast Aluminium λ = 120 Wm -1 K -1 Sqaure Rth JS = 5 K/W P H = W Boundary Conditions Heat Dissipation P H = W per Die Total Heat Dissipation P H = 5.05W Free Convection and Radiation Steady State Solution T amb = 25 C Still Air Sil Pad λ= 1.8Wm -1 K -1 MR Page 13 MCPCB Base metal AL t = 1.6mm λ = 180 Wm -1 K -1 Dielectric HT t = 75um λ= 2.2 Wm -1 K -1 Copper t = 35um

14 Thermal Simulation Using Square Junction Temperature total Heat Dissipation P H = 5.05W Junction Temperature (Tj) = 86 C Ambient Temperature: T amb = 25 C Still Air MR Page 14

15 Thermal Simulation Using SSL Die Cast Aluminium λ = 120 Wm -1 K -1 Rth JS = 9 K/W P H = 0.8 W Boundary Conditions Heat Dissipation P H = 0.8 W per Die Total Heat Dissipation P H = 4.8W Free Convection and Radiation Steady State Solution T amb = 25 C Still Air Sil Pad λ= 1.8Wm -1 K -1 MR Page 15 MCPCB Base metal AL t = 1.6mm λ = 180 Wm -1 K -1 Dielectric HT t = 75um λ= 2.2 Wm -1 K -1 Copper t = 35um

16 Thermal Simulation Using SSL Junction Temperature total Heat Dissipation P H = 4.8W Junction Temperature (Tj) =78 C Ambient Temperature: T amb = 25 C Still Air MR Page 16

17 Drivers Diodes Incorporated s website: National Semiconductor Corporation s website: Texas Instruments, Incorporated s website/reference design link/etc. able+il+led AL8806EV6 LM3444 MR Page 17

18 Stock Optics for Square C11602_SATU-S Viewing Angle (FWHM) 17 Light Beam Type Medium Efficiency 92 % Diameter 21.8 mm Height 8.9 mm Style Round, Multiple Optic Material PMMA MR Page 18

19 Stock Optics for SSL 150 C11716_ANNA-40-7-S Viewing Angle (FWHM) 12 Light Beam Type Spot Efficiency 90% Diameter 40 mm Height 10.7 mm Style Round, Multiple Optic Material PMMA MR Page 19

20 Thank You!!! MR Page 20