t-1 3 / 4 (5 mm), t-1 (3 mm), ultra-bright led lamps technical data hlmp-3750, -3850, -3950 hlmp-3390, -3490, -3590 hlmp-1340, -1440, -1540 hlmp-d640 hlmp-k640 axial luminous intensity and viewing angle @ 25 c part i v (mcd) @ 20 ma dc number package package hlmp- description color min. typ. 2 q 1 / 2 [1] outline 3750 t-1 3 / 4 her 90 125 24 a 3850 yellow 96 140 24 a 3950 green 111 265 24 a d640 [2] emerald green 6.7 21 24 d 3390 t-1 3 / 4 low profile her 35 55 32 b 3490 yellow 37 55 32 b 3590 green 40 55 32 b 1340 t-1 her 22 45 45 c 1440 yellow 23 45 45 c 1540 green 27 45 45 c k640 [2] emerald green 4.2 21 45 c note: 1. q 1 / 2 is the typical off-axis angle at which the luminous intensity is half the axial luminous intensity. 2. please refer to application note 1061 for information comparing standard green and emerald green light output degradation. features ? improved brightness ? improved color performance ? available in popular t-1 and t-1 3 / 4 packages ? new sturdy leads ? ic compatible/low current capability ? reliable and rugged ? choice of 3 bright colors high efficiency red high brightness yellow high performance green applications ? lighted switches ? backlighting front panels ? light pipe sources ? keyboard indicators description these clear, non-diffused lamps out-perform conventional led lamps. by utilizing new higher intensity material, we achieve superior product performance. the hlmp-3750/-3390/-1340 series lamps are gallium arsenide phosphide on gallium phosphide red light emitting diodes. the hlmp-3850/ -3490/-1440 series are gallium arsenide phosphide on gallium phosphide yellow light emitting diodes. the hlmp-3950/-3590/ -1540/-d640/-k640 series lamps are gallium phosphide green light emitting diodes.
2 package dimensions absolute maximum ratings at t a = 25 c parameter red yellow green/emerald green units peak forward current 90 60 90 ma average forward current [1] 25 20 25 ma dc current [2] 30 20 30 ma transient forward current [3] 500 500 500 ma (10 m s pulse) reverse voltage (i r = 100 m a) 5 5 5 v led junction temperature 110 110 110 c operating temperature range -55 to +100 -55 to +100 -20 to +100 c storage temperature range -55 to +100 lead soldering temperature 260 c for 5 seconds [1.6 mm (0.063 in.) from body] notes: 1. see figure 2 to establish pulsed operating conditions. 2. for red and green series derate linearly from 50 c at 0.5 ma/ c. for yellow series derate linearly from 50 c at 0.2 ma/ c. 3. the transient peak current is the maximum non-recurring peak current the devices can withstand without damaging the led die and wire bonds. it is not recommended that the device be operated at peak currents beyond the absolute maximum peak forward current. notes: 1. all dimensions are in millimeters (inches). 2. an epoxy meniscus may extend about 1 mm (0.40") down the leads. package outline d hlmp-d640 package outline c hlmp-1340, -1440, -1540, -k640 package outline a hlmp-3750, -3850, -3950 package outline b hlmp-3390, -3490, -3590 5.34 (0.210) 4.83 (0.190)
3 electrical/optical characteristics at t a = 25 c t-1 3 / 4 low test symbol description t-1 3 / 4 dome t-1 min. typ. max. units conditions l peak peak wavelength 3750 3390 1340 635 nm measurement 3850 3490 1440 583 at peak 3950 3590 1540 565 d640 k640 558 l d dominant wavelength 3750 3390 1340 626 nm note 1 3850 3490 1440 585 3950 3590 1540 569 d640 k640 560 dl 1 / 2 spectral line halfwidth 3750 3390 1340 40 nm 3850 3490 1440 36 3950 3590 1540 28 d640 k640 24 t s speed of response 3750 3390 1340 90 ns 3850 3490 1440 90 3950 3590 1540 500 d640 k640 3100 c capacitance 3750 3390 1340 11 pf v f = 0, f = 1 mhz 3850 3490 1440 15 3950 3590 1540 18 d640 k640 35 r q j-pin thermal resistance 3750 3390 210 c/w junction to 3850 3490 210 cathode lead 3950 3590 210 d640 510 1340 290 1440 290 1540 290 k640 290 v f forward voltage 3750 3390 1340 1.5 1.9 2.6 v i f = 20 ma 3850 3490 1440 1.5 2.1 2.6 (figure 3) 3950 3590 1540 1.5 2.2 3.0 d640 k640 2.2 3.0 v r reverse breakdown 3750 3390 1340 5.0 v i f = 100 m a voltage 3850 3490 1440 3950 3590 1540 d640 k640 h v luminous efficacy 3750 3390 1340 145 lumens note 2 3850 3490 1440 500 watt 3950 3590 1540 595 d640 k640 655 notes: 1. the dominant wavelength, l d , is derived from the cie chromaticity diagram and represents the single wavelength which defines the color of the device. 2. the radiant intensity, i e , in watts per steradian, may be found from the equation i e = i v / h v , where i v is the luminous intensity in candelas and h v is the luminous efficacy in lumens/watt.
4 figure 1. relative intensity vs. wavelength. red, yellow, and green figure 4. relative luminous intensity vs. forward current. figure 5. relative efficiency (luminous intensity per unit current) vs. peak current. high efficiency red wavelength C nm relative intensity 1.0 0.5 0 500 550 600 650 700 yellow emerald green green t = 25 c a figure 2. maximum tolerable peak current vs. pulse duration. (i dc max as per max ratings). figure 3. forward current vs. forward voltage.
5 figure 6. relative luminous intensity vs. angular displacement. t-1 3 / 4 lamp. figure 7. relative luminous intensity vs. angular displacement. t-1 3 / 4 low profile lamp. figure 8. relative luminous intensity vs. angular displacement. t-1 lamp.
www.semiconductor.agilent.com data subject to change. copyright ? 1999 agilent technologies, inc. obsoletes 5964-9290e 5968-3383e (11/99)
|
