Overview
The PCA9624PW/S911,118 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 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 PCA9624PW is designed to provide precise control over LED brightness and blinking patterns, making it suitable for a variety of applications requiring advanced LED management.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V |
| Output Current per LED | Up to 100 mA |
| Output Voltage Tolerance | Up to 40 V |
| PWM Frequency (Individual) | 97 kHz |
| PWM Frequency (Group) | 190 Hz (adjustable from 24 Hz to 10.73 seconds) |
| PWM Resolution | 256 steps (8-bit) |
| I²C-bus Frequency | Up to 1 MHz |
| Hardware Address Pins | 7 (allowing up to 126 devices on the same bus) |
| Software Programmable I²C-bus Addresses | 4 (one LED Group Call address and three Sub Call addresses) |
Key Features
- Individual and group PWM control with 256-step resolution (8-bit) for precise brightness and blinking control.
- Active LOW Output Enable (OE) input pin for hardware blinking and dimming of LEDs.
- Software programmable LED Group and Sub Call I²C-bus addresses for flexible control of multiple devices.
- Seven hardware address pins allowing up to 126 devices on the same I²C-bus.
- Software Reset (SWRST) Call for resetting the device through the I²C-bus.
- Output state change programmable on the Acknowledge or the STOP Command.
Applications
The PCA9624PW/S911,118 is suitable for various applications requiring advanced LED control, such as:
- LED lighting systems in automotive, industrial, and consumer electronics.
- Display backlighting and signage.
- LED strips and arrays for decorative and ambient lighting.
- Automotive dashboard and instrument cluster lighting.
- Industrial control panels and human-machine interfaces.
Q & A
- What is the PCA9624PW/S911,118 used for?
The PCA9624PW/S911,118 is an I²C-bus controlled 8-bit LED driver used for precise control over LED brightness and blinking patterns. - What is the supply voltage range of the PCA9624PW/S911,118?
The supply voltage range is from 2.3 V to 5.5 V. - How much current can each LED output handle?
Each LED output can handle up to 100 mA. - What is the maximum output voltage tolerance?
The maximum output voltage tolerance is up to 40 V. - What is the PWM frequency for individual LED outputs?
The PWM frequency for individual LED outputs is 97 kHz. - Can the group PWM frequency be adjusted?
Yes, the group PWM frequency can be adjusted from 24 Hz to 10.73 seconds. - How many hardware address pins does the PCA9624PW/S911,118 have?
The PCA9624PW/S911,118 has 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/S911,118 be reset through the I²C-bus?
Yes, the PCA9624PW/S911,118 can be reset through the I²C-bus using the Software Reset (SWRST) Call. - How many devices can be connected to the same I²C-bus?
Up to 126 devices can be connected to the same I²C-bus.
