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Part Number
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LM2755 |
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Manufacturer
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National Semiconductor |
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Description
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Charge Pump LED Controller |
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Published
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Jun 8, 2009 |
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Detailed Description
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LM2755 Charge Pump LED Controller with I2C Compatible Interface
October 2007
LM2755 Charge Pump LED Controller with I2...
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Datasheet
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LM2755
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Overview
LM2755 Charge Pump LED Controller with I2C Compatible Interface
October 2007
LM2755 Charge Pump LED Controller with I2C Compatible Interface www.
datasheet4u.
com in Micro SMD
General Description
The LM2755 is a charge-pump-based, constant current LED driver capable of driving 3 LEDs with a total output current up to 90mA.
The diode current waveforms of each LED can be trapezoidal with timing and level parameters (rise time, fall time, high level, low level, delay, high time, low time) programmed via an I2C compatible interface.
The 32 brightness levels found on the LM2755 are exponentially spaced (as opposed to linearly spaced) to better match the response of the human eye to changing brigh...
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