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Saturday 26 May 2012
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Power Supplies
XP Power LED drivers for up to 20W
Thursday 12 January 2012
XP Power’s latest PCB mount DC input constant current LED drivers are four models offering power outputs of 5, 7, 14 and 20W.
Typical efficiencies are 93% for the 5 – 14W models and 95% for the 20W devices.
The LDU20 series provides up to 700 mA output current, and the LDU05, 07 and 14 series has a maximum output of 1000 mA.
The drivers can accommodate a very wide range of input voltage from 7-30Vdc, which needs to be at least 2 V higher than the output.
Dimming options include two analogue methods (voltage or resistance) and a pulse width modulation (PWM) input signal.
The PWM approach has a maximum operating frequency of 1kHz, with a minimum 200ns on/off time. When using an analogue dimming method the output current range can be adjusted from 25% to 100% of nominal current.
A remote on/off control input provides the designer the ability to control the output or sequence the start-up. All models provide protection in the event of a short or open circuit of the LED device.
www.xppower.com
Typical efficiencies are 93% for the 5 – 14W models and 95% for the 20W devices.
The LDU20 series provides up to 700 mA output current, and the LDU05, 07 and 14 series has a maximum output of 1000 mA.
The drivers can accommodate a very wide range of input voltage from 7-30Vdc, which needs to be at least 2 V higher than the output.
Dimming options include two analogue methods (voltage or resistance) and a pulse width modulation (PWM) input signal.
The PWM approach has a maximum operating frequency of 1kHz, with a minimum 200ns on/off time. When using an analogue dimming method the output current range can be adjusted from 25% to 100% of nominal current.
A remote on/off control input provides the designer the ability to control the output or sequence the start-up. All models provide protection in the event of a short or open circuit of the LED device.
www.xppower.com
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