Overview
The PCA9685PW,112 is a highly versatile and feature-rich 16-channel LED controller produced by NXP USA Inc. This component is specifically designed for I2C-bus controlled applications, making it ideal for various LED lighting and display solutions. It is optimized for LCD Red/Green/Blue/Amber (RGBA) color backlighting and offers precise control over LED brightness through individual PWM controllers for each channel.
Key Specifications
| Attribute | Specification |
|---|---|
| Supply Voltage | 2.3V to 5.5V |
| Output Current per Channel | 25mA |
| Output Voltage | 5.5V |
| Switching Frequency-Max | 1MHz |
| Package Style | TSSOP-28 |
| Mounting Method | Surface Mount |
| PWM Resolution | 12-bit (4096 steps) |
| PWM Frequency Range | 40 Hz to 1000 Hz |
| Operating Temperature | −40 °C to +85 °C |
Key Features
- 25 MHz typical internal oscillator requires no external components
- External 50 MHz (max.) clock input
- Internal power-on reset
- Noise filter on SDA/SCL inputs
- Edge rate control on outputs
- No output glitches on power-up
- Supports hot insertion
- Low standby current
- 5.5 V tolerant inputs
Applications
- RGB or RGBA LED drivers
- LED status information
- LED displays
- LCD backlights
- Keypad backlights for cellular phones or handheld devices
Q & A
- What is the PCA9685PW,112 used for?
The PCA9685PW,112 is used for I2C-bus controlled 16-channel LED applications, particularly for LCD Red/Green/Blue/Amber (RGBA) color backlighting. - What is the supply voltage range of the PCA9685PW,112?
The supply voltage range is from 2.3V to 5.5V. - What is the maximum output current per channel?
The maximum output current per channel is 25mA. - What is the package style of the PCA9685PW,112?
The package style is TSSOP-28. - What is the mounting method for this component?
The mounting method is surface mount. - What is the PWM resolution of each LED output?
The PWM resolution is 12-bit (4096 steps). - What is the operating temperature range of the PCA9685PW,112?
The operating temperature range is from −40 °C to +85 °C. - Does the PCA9685PW,112 support hot insertion?
Yes, it supports hot insertion. - What are some common applications of the PCA9685PW,112?
Common applications include RGB or RGBA LED drivers, LED status information, LED displays, LCD backlights, and keypad backlights for cellular phones or handheld devices. - Does the PCA9685PW,112 have an internal oscillator?
Yes, it has a 25 MHz typical internal oscillator that requires no external components.
