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PCA9635PW/Q900,118

PCA9635PW/Q900,118

Product Overview

Category

PCA9635PW/Q900,118 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for controlling and driving LEDs (Light Emitting Diodes) in various applications.

Characteristics

  • The PCA9635PW/Q900,118 is a 16-channel constant current LED driver.
  • It operates with a supply voltage range of 2.3V to 5.5V.
  • This IC supports both PWM (Pulse Width Modulation) and I2C (Inter-Integrated Circuit) communication protocols.
  • It offers programmable LED brightness control and individual LED on/off control.
  • The PCA9635PW/Q900,118 has built-in thermal shutdown protection and open/short detection.

Package

The PCA9635PW/Q900,118 is available in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of PCA9635PW/Q900,118 lies in its ability to efficiently drive and control multiple LEDs using a single IC.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity per package. Please refer to the manufacturer's specifications for detailed packaging information.

Specifications

  • Supply Voltage Range: 2.3V to 5.5V
  • Number of Channels: 16
  • Communication Protocol: I2C
  • Dimming Control: PWM
  • Thermal Shutdown Protection: Yes
  • Open/Short Detection: Yes

Detailed Pin Configuration

The PCA9635PW/Q900,118 features a 24-pin TSSOP package with the following pin configuration:

  1. SDA - I2C Serial Data Input/Output
  2. SCL - I2C Serial Clock Input
  3. OE - Output Enable
  4. AI1 - Auto-Increment Address Bit 1
  5. AI0 - Auto-Increment Address Bit 0
  6. A0 - Device Address Bit 0
  7. A1 - Device Address Bit 1
  8. A2 - Device Address Bit 2
  9. VDD - Supply Voltage
  10. GND - Ground
  11. LED0 - Channel 0 LED Output
  12. LED1 - Channel 1 LED Output
  13. LED2 - Channel 2 LED Output
  14. LED3 - Channel 3 LED Output
  15. LED4 - Channel 4 LED Output
  16. LED5 - Channel 5 LED Output
  17. LED6 - Channel 6 LED Output
  18. LED7 - Channel 7 LED Output
  19. LED8 - Channel 8 LED Output
  20. LED9 - Channel 9 LED Output
  21. LED10 - Channel 10 LED Output
  22. LED11 - Channel 11 LED Output
  23. LED12 - Channel 12 LED Output
  24. LED13 - Channel 13 LED Output

Functional Features

  • Individual control of each LED channel for on/off and brightness adjustment.
  • Programmable PWM frequency and duty cycle for precise dimming control.
  • Auto-increment address feature for easy cascading of multiple devices.
  • Built-in open/short detection for enhanced reliability.
  • Thermal shutdown protection to prevent overheating.

Advantages and Disadvantages

Advantages

  • High integration, allowing control of multiple LEDs with a single IC.
  • Wide supply voltage range enables compatibility with various systems.
  • Flexible dimming control through PWM and I2C communication protocols.
  • Open/short detection enhances system reliability.
  • Thermal shutdown protection prevents damage due to excessive heat.

Disadvantages

  • Limited to driving LEDs and not suitable for other types of loads.
  • Requires knowledge of I2C communication protocol for proper usage.
  • May require additional external components for specific applications.

Working Principles

The PCA9635PW/Q900,118 operates by receiving control signals through the I2C interface. It interprets these signals to individually control the on/off state and brightness level of each LED channel. The PWM technique is utilized to achieve precise dimming control. The IC also incorporates open/short detection and thermal shutdown protection mechanisms to ensure safe and reliable operation.

Detailed Application Field Plans

The PCA9635PW/Q900,118 finds application in various fields, including but not limited to:

  1. Automotive lighting systems
  2. Signage and display boards
  3. Backlighting for LCD panels
  4. Decorative lighting
  5. Architectural lighting
  6. Stage and theater lighting
  7. Gaming peripherals
  8. Consumer electronics

Detailed and Complete Alternative Models

  1. PCA9685PW/Q900,118 - 16-channel LED driver with higher resolution PWM control.
  2. TLC5940PW/Q900,118 - 16-channel LED driver with grayscale control capability.
  3. MAX7219EWG

প্রযুক্তিগত সমাধানে PCA9635PW/Q900,118 এর প্রয়োগ সম্পর্কিত 10টি সাধারণ প্রশ্ন ও উত্তর তালিকাভুক্ত করুন

  1. Question: What is the maximum frequency of the PCA9635PW/Q900,118?
    Answer: The maximum frequency of the PCA9635PW/Q900,118 is 100 kHz.

  2. Question: Can the PCA9635PW/Q900,118 be used for dimming LED lights?
    Answer: Yes, the PCA9635PW/Q900,118 can be used for dimming LED lights with its PWM control.

  3. Question: What is the supply voltage range for the PCA9635PW/Q900,118?
    Answer: The supply voltage range for the PCA9635PW/Q900,118 is 2.3V to 5.5V.

  4. Question: How many channels does the PCA9635PW/Q900,118 support?
    Answer: The PCA9635PW/Q900,118 supports 16 channels.

  5. Question: Is the PCA9635PW/Q900,118 compatible with I2C communication?
    Answer: Yes, the PCA9635PW/Q900,118 is compatible with I2C communication.

  6. Question: What is the maximum current per channel for the PCA9635PW/Q900,118?
    Answer: The maximum current per channel for the PCA9635PW/Q900,118 is 25 mA.

  7. Question: Can the PCA9635PW/Q900,118 be used in automotive applications?
    Answer: Yes, the PCA9635PW/Q900,118 is suitable for automotive applications.

  8. Question: Does the PCA9635PW/Q900,118 have built-in thermal shutdown protection?
    Answer: Yes, the PCA9635PW/Q900,118 has built-in thermal shutdown protection.

  9. Question: What is the operating temperature range for the PCA9635PW/Q900,118?
    Answer: The operating temperature range for the PCA9635PW/Q900,118 is -40°C to 85°C.

  10. Question: Can the PCA9635PW/Q900,118 be cascaded with other PCA9635 devices?
    Answer: Yes, the PCA9635PW/Q900,118 can be cascaded with other PCA9635 devices for expanded functionality.