Overview
The PCA9624PW,118 is an I²C-bus controlled 8-bit LED driver produced by NXP USA Inc. This component is optimized for voltage switch dimming and blinking of 100 mA Red/Green/Blue/Amber (RGBA) LEDs. It is part of the Fast-mode Plus (Fm+) family, offering higher frequency and more densely populated bus operation. The PCA9624 is designed to provide precise control over LED brightness and blinking patterns, making it suitable for various lighting applications.
Key Specifications
| Parameter | Description |
|---|---|
| Supply Voltage | 2.3 V to 5.5 V |
| Output Current | Up to 100 mA per output |
| Output Voltage Tolerance | Up to 40 V |
| PWM Frequency (Individual) | 97 kHz |
| PWM Frequency (Group) | 190 Hz (fixed), programmable from 24 Hz to 10.73 s |
| PWM Resolution | 256 steps (8-bit) for both individual and group control |
| I²C-Bus Frequency | Up to 1 MHz (Fast-mode Plus) |
| Hardware Address Pins | 7 pins, allowing up to 126 devices on the same bus |
| Package Type | TSSOP24 or HVQFN24 |
Key Features
- Individual 8-bit PWM controllers for each LED output with a fixed frequency of 97 kHz and adjustable duty cycle from 0% to 99.6%.
- Group PWM controller with a fixed frequency of 190 Hz and programmable frequency from 24 Hz to 10.73 seconds, allowing for global brightness and blinking control.
- Active LOW Output Enable (OE) input pin for hardware blinking and dimming of LEDs.
- Software programmable LED Group and three Sub Call I²C-bus addresses for flexible control of LED groups.
- Seven hardware address pins enabling up to 126 devices on the same I²C-bus.
- Software Reset (SWRST) Call for resetting the device through the I²C-bus.
Applications
- RGB/RGBA LED lighting systems in automotive, industrial, and consumer electronics.
- Display backlighting and signage.
- LED strips and lighting panels requiring precise brightness and color control.
- Automotive interior and exterior lighting.
- Industrial control panels and human-machine interfaces.
Q & A
- What is the PCA9624PW,118 used for?
The PCA9624PW,118 is used for controlling and dimming RGBA LEDs in various applications, including automotive, industrial, and consumer electronics.
- What is the supply voltage range of the PCA9624PW,118?
The supply voltage range is from 2.3 V to 5.5 V.
- How many LEDs can be controlled by the PCA9624PW,118?
The PCA9624PW,118 can control up to 8 LEDs.
- What is the PWM frequency for individual LED outputs?
The PWM frequency for individual LED outputs is 97 kHz.
- Can the PCA9624PW,118 be used for group dimming and blinking?
- How many devices can be connected to the same I²C-bus?
Up to 126 devices can be connected to the same I²C-bus using the 7 hardware address pins.
- What is the purpose of the Active LOW Output Enable (OE) input pin?
The Active LOW Output Enable (OE) input pin allows for hardware blinking and dimming of the LEDs.
- Can the PCA9624PW,118 be reset through the I²C-bus?
- What is the maximum output voltage tolerance of the PCA9624PW,118?
The maximum output voltage tolerance is up to 40 V.
- What package types are available for the PCA9624PW,118?
The PCA9624PW,118 is available in TSSOP24 and HVQFN24 packages.
