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LP55271,pdf datasheet (Tiny LE
消耗积分:3 |
格式:rar |
大小:551 |
2009-09-30
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The LP55271 is a lighting management unit for handheld
devices with I2C compatible control interface. The LP55271
has a step-up DC/DC converter with high current output and
it drives display and keypad backlights and powers the camera
flash LED. In addition the DC/DC converter has the
output current to power for example an audio amplifier simultaneously.
The chip has four 8-bit programmable high
efficiency constant current LED drivers and a FLASH LED
driver. Built-in audio synchronization feature allows the user
to synchronize one of the LEDs to audio input.
devices with I2C compatible control interface. The LP55271
has a step-up DC/DC converter with high current output and
it drives display and keypad backlights and powers the camera
flash LED. In addition the DC/DC converter has the
output current to power for example an audio amplifier simultaneously.
The chip has four 8-bit programmable high
efficiency constant current LED drivers and a FLASH LED
driver. Built-in audio synchronization feature allows the user
to synchronize one of the LEDs to audio input.
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