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LP5523 데이터시트(PDF) 16 Page - Texas Instruments

부품명 LP5523
상세설명  LP5523 Nine-Channel RGB- and White-LED Driver With Internal Program Memory and Integrated Charge Pump – DSBGA Package
PDF  61 Pages
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제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
Logo TI2 - Texas Instruments

LP5523 데이터시트(HTML) 16 Page - Texas Instruments

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LP5523
SNVS550E – SEPTEMBER 2009 – REVISED JANUARY 2017
www.ti.com
Product Folder Links: LP5523
Submit Documentation Feedback
Copyright © 2009–2017, Texas Instruments Incorporated
Feature Description (continued)
7.3.6.3 Controlling The High-Side LED Drivers
1. Direct PWM Control: All LP5523 LED drivers, D1 to D9, can be controlled independently through the two-wire
serial I2C-compatible interface. For each high-side driver there is a PWM control register. Direct PWM control
is active by default.
2. Controlling by Program Execution Engines: Engine control is used when the user wants to create
programmed sequences. The program execution engine has a higher priority than direct control registers.
Therefore, if the user has set the PWM register to a certain value, it is automatically overridden when the
program execution engine controls the driver. LED control and program execution engine operation is
described in Control Register Details.
3. Master Fader Control: In addition to LED-by-LED PWM register control, the LP5523 is equipped with so-
called master fader control, which allows the user to fade in or fade out multiple LEDs by writing to only one
register. This is a useful function to minimize serial-bus traffic between the MCU and the LP5523. The
LP5523 has three master fader registers, so it is possible to form three master fader groups.



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