UPBLED470A MICROSEMI | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 6
Technical content
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 1Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW Microsemi’s high brightness UPBLED470A product offers impressive brightness with industry leading thermal resisitivity. These products deliver superior thermals that keep junction temperatures low with a remarkable package thermal resisitivity of 110 degrees C/Watt. The blue packages also deliver a very wide viewing angle able to easily integrate into optical lenses. The Optomite package performs extremely well under extreme temperature conditions with less wavelength shift and intensity degradation seen by many competitors. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com For operation of these LEDs in pulse mode applications, devices may be used in conjunction with the Microsemi LX1992LED Drivers ABSOLUTE MAXIMUM RATINGS AT 25º C (UNLESS OTHERWISE SPECIFIED) THERMAL CHARACTERISTICS (UNLESS OTHERWISE SPECIFIED) Thermal Resistance Symbol Value Units Junction-to Soldering Point R θJS 110 °C/W Parameters Symbol Value Unit DC Forward Drive Current I F 30 mA Peak Forward Current I FP 100 mA LED Operating Junction Temperature Tj -40 to +150 °C Reverse Voltage V R 8 V Power Dissipation P D 125 mW Operating Temperature T OPR -40 to +125 °C Storage Temperature T S -45 to +150 °C Electrostatic Discharge ESD 1000 V ESD classification Class 2 Solder Reflow peak Temperature (Solder 10”) 225 °C KEY FEATURES Low Thermal Resistance Rugged Optomite 0603 package High Brightness Wide viewing angle APPLICATIONS/BENEFITS Mobile Phone Keypad Panel, button, switch indicators. Backlighting Signage Signals and Marker Lights UUPPBBLLEEDD447700--AA
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 2Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW
- Change in Radiant Intensity with temperature –1.4µW/sr/°C (25°C < temp< 85°C)
- Change in Radiant Intensity with temperature 0.7µW/sr/°C (25°C < temp< -40°C) DIRECTIVITY Polar Plot of Angular Intensity ELECTRICAL PARAMETERS @ 25°C & ID=20 mA (unless otherwise specified) Characteristic Symbol Test Conditions Min Typ. Max Units Radiant Intensity IE DC Drive Current = 20 mA DC Drive Current = 30 mA DC Drive Current = 50 mA 700 950 1,300 µW/sr Luminous Intensity I V DC Drive Current = 20 mA DC Drive Current = 30 mA DC Drive Current = 50 mA 35 50 100 mcd Dominant Wavelength λDOM DC Drive Current = 20 mA 468 nm Peak Wavelength λPK DC Drive Current = 20 mA 460 nm Chrom x Chrom y DC Drive Current = 20 mA .125 .09 Angle Coverage to 50% points α1/2 DC Drive Current = 20 mA to 50mA 140 deg. Radiant Flux ΦE DC Drive Current = 20 mA DC Drive Current = 30 mA DC Drive Current = 50 m 2.8 mW Luminous Flux ΦV DC Drive Current = 20 mA DC Drive Current = 30 mA DC Drive Current = 50 m 190 250 350 mlm Forward Voltage V F DC Drive Current = 20 mA DC Drive Current = 30 mA DC Drive Current = 50 mA 3.5 3.9 4.5 3.9 V Reverse Leakage Current I R Reverse Voltage = 5 V 10 µA Forward Voltage V F 3.9 V EELLEECCTTRRIICCAALL
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 3Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW BOTTOM VIEW Notes: Anode is identified by observing the underside of the LED. (Anode is the smaller of the two base pads) Mount to circuit board using 60/40 Pb/Sn or equivalent. Maximum solder melt exposure temperature is 225°C for 10 seconds. TAPE AND REEL 3,000 units/reel Notes: Dimensions is shown in metric. MMEECCHHAANNIICCAALL
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 4Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW 1 10 3 0.01 0.1 1 100 150 Thermal Resistance vs Power-On time Power-On time (sec) Thermal Resistance (°C/watt) Steady State Thermal Resistance Junction-to-Optomite base metal ~ 110°C/W Thermal time constant ~ 20 mS (@ 0.632 x R θmax). Steady state temperature at ~ 500 mS. Mounting footprint, Copper (note: Silver plating will enhance Luminous Intensity) TTHHEERRMMAALL
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 5Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW 2 3 4 5 6 1 10 4 1 10 3 0.01 0.1 Forward Voltage vs Drive Current Forward Voltage (volts) dc Drive Current (amps) 0 0.2 0.4 0.6 0.02 0.04 0.06 0.08 0.1 Power Dissipation vs Drive Current Power Dissipation (watts) dc Drive Current (amps)
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235 Page 6Copyright 2002 Rev. 0.02, 2003-06-03 WWW.Microsemi .COM UPBLED470A HIGH BRIGHTNESS BLUE LED PRODUCT PREVIEW CALCULATION FOR SAFE OPERATION ABOVE 20 ma dc: The power dissipation must be held at a level to maintains the junction below the maximum specified operating temperature. Duty cycle control may be used to establish the safe operating condition using a train of pulses. LED Junction temperature may be calculated by use of the following: T J T Case V F I Dpk. t p Rθ JS. τ t p τ Zθτ t p . Zθτ Zθtp .T Case V F I Dpk t p Rθ JS τ t p τ Zθτ t p Zθτ Zθtp T Case is at a specified temperature. VF and IDpk values are read off graph of forward voltage vs drive current. tp and τ are set by the on-time and pulse period of the drive circuit. Thermal Impedances (Zθ) and Thermal resistance (Rθ) values are read from Thermal Impedance graph. Conversion of 1931 x y coordinates to 1960 u v coordinates: Conversion of 1960 u v coordinates to 1931 x y coordinates: * UPBLED-470A SPICE MODEL + Tt=432.8n Xti=5) UUPPBBLLEEDD447700--AA A