Overview
The PCA9685PW,118 is a 16-channel, 12-bit PWM Fm+ I2C-bus LED controller produced by NXP USA Inc. This component is optimized for Red/Green/Blue/Amber (RGBA) color backlighting applications and offers a high level of flexibility and control over LED brightness and timing. It features a compact TSSOP-28 package and is designed for surface mount applications.
Key Specifications
| No of Outputs | Sixteen |
|---|---|
| Supply Voltage | 2.3V to 5.5V |
| Output Current per Channel | 25mA |
| Output Voltage | 5.5V |
| Switching Frequency-Max | 1MHz |
| Operating Temp Range | -40°C to +85°C |
| Package Style | TSSOP-28 |
| Mounting Method | Surface Mount |
| PWM Resolution | 12-bit (4096 steps) |
| PWM Frequency Range | Typically 24 Hz to 1526 Hz |
Key Features
- 16 LED drivers, each programmable for off, on, or programmable LED brightness
- 12-bit (4096 steps) linear programmable brightness per LED output
- 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability on SDA output
- Totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software programmable open-drain LED outputs selection
- Active LOW Output Enable (OE) input pin for controlling LED outputs
- Six hardware address pins allowing up to 62 PCA9685 devices to be connected to the same I2C-bus
- Internal 25 MHz oscillator and external 50 MHz clock input option
- Internal power-on reset, noise filter on SDA/SCL inputs, and edge rate control on outputs
- Supports hot insertion and has low standby current
- ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
Applications
The PCA9685PW,118 is particularly suited for RGBA color backlighting applications, such as in display panels, signage, and lighting systems. It is also useful in any scenario where precise control over multiple LED channels is required, including automotive, industrial, and consumer electronics.
Q & A
- What is the PCA9685PW,118 used for?
The PCA9685PW,118 is used as a 16-channel, 12-bit PWM Fm+ I2C-bus LED controller, primarily for RGBA color backlighting applications.
- How many LED outputs does the PCA9685PW,118 have?
The PCA9685PW,118 has 16 LED outputs.
- What is the supply voltage range for the PCA9685PW,118?
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 PWM resolution of the PCA9685PW,118?
The PWM resolution is 12-bit, providing 4096 steps of brightness control.
- Can the PCA9685PW,118 be connected to multiple devices on the same I2C-bus?
- Does the PCA9685PW,118 support external clock inputs?
- What is the operating temperature range of the PCA9685PW,118?
The operating temperature range is -40°C to +85°C.
- Is the PCA9685PW,118 RoHS compliant?
- What package style does the PCA9685PW,118 come in?
The PCA9685PW,118 comes in a TSSOP-28 package.
