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PCA9685PW from NXP,NXP Semiconductors

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PCA9685PW

Manufacturer: NXP

16-channel, 12-bit PWM Fm+ I2C-bus LED controller

Partnumber Manufacturer Quantity Availability
PCA9685PW NXP 4 In Stock

Description and Introduction

16-channel, 12-bit PWM Fm+ I2C-bus LED controller The **PCA9685PW** from **NXP Semiconductors** is a versatile **16-channel, 12-bit PWM controller** designed for precise LED dimming and servo motor control applications. Operating over a **2.3V to 5.5V** supply range, this I²C-bus controlled IC provides an efficient solution for managing multiple PWM outputs with minimal microcontroller overhead.  

Each of the **16 channels** offers **12-bit resolution (4096 steps)**, allowing fine-grained brightness adjustment or accurate servo positioning. The device supports a **programmable frequency** from **24Hz to 1526Hz**, making it adaptable to various lighting and motion control requirements.  

Key features include **individual channel on/off control**, **all-output enable/disable**, and **software-programmable LED output states**. The PCA9685PW also includes an **auto-incrementing register** for faster I²C data writes, enhancing system efficiency.  

With its **low standby current** and **high noise immunity**, the PCA9685PW is well-suited for applications such as **LED displays, robotics, and industrial automation**. Its compact **TSSOP-28 package** ensures space-efficient integration into designs while maintaining reliable performance.  

By simplifying PWM signal generation, the PCA9685PW reduces processor load, making it an ideal choice for embedded systems requiring scalable, high-precision control.

Application Scenarios & Design Considerations

16-channel, 12-bit PWM Fm+ I2C-bus LED controller

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