NXP USA Inc.
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PCA8550D,112
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PCA8550D,112

Product Overview

Category

PCA8550D,112 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for driving LEDs in applications such as backlighting and displays.

Characteristics

  • The PCA8550D,112 is a versatile LED driver with 16 output channels.
  • It operates at a wide voltage range, making it suitable for various applications.
  • This IC offers high efficiency and low power consumption.
  • It supports both dot correction and global brightness control.

Package

The PCA8550D,112 is available in a small outline package (SOP) with 24 pins.

Essence

The essence of PCA8550D,112 lies in its ability to efficiently drive multiple LEDs, providing control over brightness levels and enabling precise dot correction.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage: 2.3V to 5.5V
  • Output Current: Up to 25mA per channel
  • Operating Temperature Range: -40°C to +85°C
  • Communication Interface: I2C-compatible

Detailed Pin Configuration

  1. VDD
  2. GND
  3. SDA
  4. SCL
  5. OE
  6. O0
  7. O1
  8. O2
  9. O3
  10. O4
  11. O5
  12. O6
  13. O7
  14. O8
  15. O9
  16. O10
  17. O11
  18. O12
  19. O13
  20. O14
  21. O15
  22. VLED
  23. VLED
  24. VLED

Functional Features

  • Individual control of each LED output channel
  • Dot correction for precise brightness adjustment
  • Global brightness control for overall luminance control
  • Low power consumption in standby mode
  • High efficiency and reliability

Advantages and Disadvantages

Advantages

  • Versatile LED driver with 16 output channels
  • Wide voltage range operation
  • Supports dot correction and global brightness control
  • High efficiency and low power consumption

Disadvantages

  • Limited to driving LEDs and not suitable for other applications
  • Requires an I2C-compatible communication interface

Working Principles

The PCA8550D,112 operates by receiving control signals through the I2C-compatible communication interface. It then processes these signals to drive the corresponding LEDs connected to its output channels. The IC allows individual control of each LED channel, enabling precise brightness adjustment and dot correction. The global brightness control feature provides overall luminance control.

Detailed Application Field Plans

The PCA8550D,112 finds application in various fields, including: 1. Backlighting for LCD displays 2. Automotive interior lighting 3. Signage and advertising displays 4. Gaming consoles and handheld devices 5. Home automation and smart lighting systems

Detailed and Complete Alternative Models

  1. PCA9685: This LED driver offers 16 channels and supports PWM control.
  2. TLC5940: A 16-channel LED driver with grayscale control and daisy-chain capability.
  3. MAX7219: This IC is commonly used for driving 7-segment displays and LED matrices.
  4. AS1130: An LED driver with 132 output channels and built-in matrix scanning capabilities.

These alternative models provide similar functionality to the PCA8550D,112 and can be considered as alternatives based on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de PCA8550D,112 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of PCA8550D,112 in technical solutions:

  1. Q: What is PCA8550D,112? A: PCA8550D,112 is a 16-bit I/O expander with an I2C interface, commonly used for expanding the number of I/O pins in microcontroller-based systems.

  2. Q: What is the operating voltage range of PCA8550D,112? A: The operating voltage range of PCA8550D,112 is typically between 2.3V and 5.5V.

  3. Q: How many I/O pins does PCA8550D,112 provide? A: PCA8550D,112 provides 16 I/O pins that can be configured as inputs or outputs.

  4. Q: Can PCA8550D,112 be used with any microcontroller? A: Yes, PCA8550D,112 can be used with any microcontroller that supports I2C communication.

  5. Q: How do I communicate with PCA8550D,112 using I2C? A: You need to connect the SDA (data) and SCL (clock) lines of PCA8550D,112 to the corresponding pins on your microcontroller and use I2C library functions to send and receive data.

  6. Q: Can PCA8550D,112 be used to drive high-current loads? A: No, PCA8550D,112 is not designed to directly drive high-current loads. It is recommended to use external drivers or buffers for such applications.

  7. Q: Can PCA8550D,112 be used for PWM output? A: No, PCA8550D,112 does not have built-in PWM functionality. However, you can use it to control external PWM modules or devices.

  8. Q: What is the maximum frequency of the I2C interface supported by PCA8550D,112? A: PCA8550D,112 supports standard-mode (100 kHz) and fast-mode (400 kHz) I2C communication.

  9. Q: Can PCA8550D,112 be used in automotive applications? A: Yes, PCA8550D,112 is suitable for automotive applications as it can operate within the specified temperature range and voltage requirements.

  10. Q: Are there any application examples or code samples available for PCA8550D,112? A: Yes, you can refer to the datasheet or the manufacturer's website for application notes, example circuits, and code samples to help you get started with PCA8550D,112 in your technical solutions.

Please note that these answers are general and may vary depending on specific requirements and implementation details.