2008B-xxx

The 2008 Wide Range LED Power Module is a high efficiency dc to dc converter which delivers a fixed output current by varying the output voltage as required to maintain the specified current. Many current output options are available allowing for use with many types of LEDs and in a variety of applications. Fixed Current Drive The fixed output current of the 2008 drivers are designed to supply their rated current to one or more LED junctions. For example, a 350 mA rated unit will drive up to six Luxeon* I LEDs connected in series. Due to the nature of the buck regulator, the input voltage must always be higher than the total forward voltage drop of the LED junction(s) connected in series (2.0V for DC models). Thus, for a series string of six junctions having an average forward drop of 3.5V, the required minimum input voltage will be 21V . A standard 24V power supply is a good choice for this DC DC application. Figures 3 through 8 show 700mA (02008B-700) and 1000mA (02008B-1000) units driving various LED circuits. Note that parallel strings of LEDs can be driven directly with no additional circuitry required to insure current sharing. The nature of the LEDs themselves will often provide good current sharing if the parallel strings comprise 3 or more junctions each. Figure 7 shows a 700mA unit driving a Luxeon* V. This could also represent a 350mA unit driving a Luxeon* I, a 1000mA unit driving Luxeon* III, or a 500mA unit driving a Nichia Jupiter of Nichia Chemical Corporation 1 - Measured with single emitter; output current drops slightly with additional series junctions to limit maximum power dissipation. Datasheet available at Luxdrive Examples of multiple Power LED operation Click Here Examples of 5 MM LED Strings Click Here

The 2008 Wide Range LED Power Module is a high efficiency dc to dc converter which delivers a fixed output current by varying the output voltage as required to maintain the specified current. Many current output options are available allowing for use with many types of LEDs and in a variety of applications. Fixed Current Drive The fixed output current of the 2008 drivers are designed to supply their rated current to one or more LED junctions. For example, a 350 mA rated unit will drive up to six Luxeon* I LEDs connected in series. Due to the nature of the buck regulator, the input voltage must always be higher than the total forward voltage drop of the LED junction(s) connected in series (2.0V for DC models). Thus, for a series string of six junctions having an average forward drop of 3.5V, the required minimum input voltage will be 21V . A standard 24V power supply is a good choice for this DC DC application. Figures 3 through 8 show 700mA (02008B-700) and 1000mA (02008B-1000) units driving various LED circuits. Note that parallel strings of LEDs can be driven directly with no additional circuitry required to insure current sharing. The nature of the LEDs themselves will often provide good current sharing if the parallel strings comprise 3 or more junctions each. Figure 7 shows a 700mA unit driving a Luxeon* V. This could also represent a 350mA unit driving a Luxeon* I, a 1000mA unit driving Luxeon* III, or a 500mA unit driving a Nichia Jupiter of Nichia Chemical Corporation 1 - Measured with single emitter; output current drops slightly with additional series junctions to limit maximum power dissipation. Datasheet available at Luxdrive Examples of multiple Power LED operation Click Here Examples of 5 MM LED Strings Click Here

The 2008 Wide Range LED Power Module is a high efficiency dc to dc converter which delivers a fixed output current by varying the output voltage as required to maintain the specified current. Many current output options are available allowing for use with many types of LEDs and in a variety of applications. Fixed Current Drive The fixed output current of the 2008 drivers are designed to supply their rated current to one or more LED junctions. For example, a 350 mA rated unit will drive up to six Luxeon* I LEDs connected in series. Due to the nature of the buck regulator, the input voltage must always be higher than the total forward voltage drop of the LED junction(s) connected in series (2.0V for DC models). Thus, for a series string of six junctions having an average forward drop of 3.5V, the required minimum input voltage will be 21V . A standard 24V power supply is a good choice for this DC DC application. Figures 3 through 8 show 700mA (02008B-700) and 1000mA (02008B-1000) units driving various LED circuits. Note that parallel strings of LEDs can be driven directly with no additional circuitry required to insure current sharing. The nature of the LEDs themselves will often provide good current sharing if the parallel strings comprise 3 or more junctions each. Figure 7 shows a 700mA unit driving a Luxeon* V. This could also represent a 350mA unit driving a Luxeon* I, a 1000mA unit driving Luxeon* III, or a 500mA unit driving a Nichia Jupiter of Nichia Chemical Corporation 1 - Measured with single emitter; output current drops slightly with additional series junctions to limit maximum power dissipation. Datasheet available at Luxdrive Examples of multiple Power LED operation Click Here Examples of 5 MM LED Strings Click Here

The 2008 Wide Range LED Power Module is a high efficiency dc to dc converter which delivers a fixed output current by varying the output voltage as required to maintain the specified current. Many current output options are available allowing for use with many types of LEDs and in a variety of applications. Fixed Current Drive The fixed output current of the 2008 drivers are designed to supply their rated current to one or more LED junctions. For example, a 350 mA rated unit will drive up to six Luxeon* I LEDs connected in series. Due to the nature of the buck regulator, the input voltage must always be higher than the total forward voltage drop of the LED junction(s) connected in series (2.0V for DC models). Thus, for a series string of six junctions having an average forward drop of 3.5V, the required minimum input voltage will be 21V . A standard 24V power supply is a good choice for this DC DC application. Figures 3 through 8 show 700mA (02008B-700) and 1000mA (02008B-1000) units driving various LED circuits. Note that parallel strings of LEDs can be driven directly with no additional circuitry required to insure current sharing. The nature of the LEDs themselves will often provide good current sharing if the parallel strings comprise 3 or more junctions each. Figure 7 shows a 700mA unit driving a Luxeon* V. This could also represent a 350mA unit driving a Luxeon* I, a 1000mA unit driving Luxeon* III, or a 500mA unit driving a Nichia Jupiter of Nichia Chemical Corporation 1 - Measured with single emitter; output current drops slightly with additional series junctions to limit maximum power dissipation. Datasheet available at Luxdrive Examples of multiple Power LED operation Click Here Examples of 5 MM LED Strings Click Here