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ACE714

ACE Technology
Part Number ACE714
Manufacturer ACE Technology
Description High Efficiency Low Noise PFM Step-up DC/DC Converter
Published Mar 13, 2010
Detailed Description ACE714 High Efficiency Low Noise PFM Step-up DC/DC Converter Description The ACE714 veriable frequency step-up Converte...
Datasheet PDF File ACE714 PDF File

ACE714
ACE714

Overview
ACE714 High Efficiency Low Noise PFM Step-up DC/DC Converter Description The ACE714 veriable frequency step-up Converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other handheld devices.
It features allowing series connection of the white LEDs so that the LED currents are identical for uniform brightness.
An enable input can be pulsed repeatedly to adjust LEDs brightness.
The fast 3MHz operation frequency allows for smaller capacitor and inductor.
Fault condition protection uses cycle-by cycle current limiting to sense maximum inductor current and over-voltage protection.
The 0.
2V low reference voltage minimized the power loss across the curren...


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