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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP5562 датащи(PDF) 10 Page - Texas Instruments |
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LP5562 датащи(HTML) 10 Page - Texas Instruments |
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10 / 52 page  PROGRAM MEMORY I 2 C LP5562 SCL SDA CLK_32K ADDR_SEL0 ADDR_SEL1 EN/VCC VDD GND R G B IDAC Control BIAS REF TSD POR OSC CLK DET VDD_ IO Command Based PWM Pattern Generator 1PF CIN VDD W MCU 10 LP5562 SNVS820B – APRIL 2013 – REVISED DECEMBER 2016 www.ti.com Product Folder Links: LP5562 Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated 7 Detailed Description 7.1 Overview The LP5562 is a RGBW LED driver for indicator LED and keypad lighting. The device has an internal program memory for creating a variety of lighting sequences. When the program memory has been loaded, the LP5562 can operate independently without processor control. The device has 4 LED drivers that are constant current sinks with 8-bit current and 8-bit PWM control. The current sinks can be controlled via the three execution engines or direct PWM control. The execution engines have five different functions used to build lighting sequences: Ramp, Set PWM, Go to Start, Branch, or End Trigger. These control methods and functions are explained in detail in Feature Description and Device Functional Modes. 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 LED Drivers Operational Description The LP5562 has 4 LED drivers that are constant current sinks with 8-bit current and 8-bit PWM control. Current is controlled from I2C registers. PWM can be controlled with program execution engines or direct I2C register writes. 7.3.1.1 LED Driver Current Control LED driver output current can be programmed with I2C register from 0 mA up to 25.5 mA. Current setting resolution is 100 μA (8-bit control). |
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