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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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LP5523 Datenblatt(PDF) 16 Page - Texas Instruments |
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LP5523 Datenblatt(HTML) 16 Page - Texas Instruments |
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16 / 61 page  16 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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