Datasheet Texas Instruments LP5520 — 数据表

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SNVS440B – MAY 2007 – REVISED MARCH 2016 LP5520 RGB Backlight LED Driver
1 Features 3 Description The LP5520 is an RGB backlight LED driver for small
format color LCDs. RGB backlights enable better
colors on the display and power savings compared
with white LED backlights. The device offers a small
and simple driver solution without need for optical
feedback. Calibration in display module production
can be done in one temperature. The LP5520
produces true white light over a wide temperature
range. Three independent LED drivers have accurate
programmable current sinks and PWM modulation
control. Using internal calibration memory and
external temperature sensor, the RGB LED currents
are adjusted for perfect white balance independent of
the brightness setting or temperature. The user
programmable calibration memory has intensity vs
temperature data for each color. This white balance …