Overview
The PCA9533DP/01,118 is a 4-bit I²C-bus and SMBus I/O expander designed by NXP USA Inc., specifically optimized for dimming LEDs. This integrated circuit is ideal for applications requiring precise control over LED brightness, particularly in Red/Green/Blue (RGB) color mixing and backlighting scenarios. The device supports 256 discrete dimming steps, providing a high level of granularity in brightness control.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Outputs | 4 |
| Output Current per Channel | 25 mA |
| Dimming Steps | 256 |
| Interface | I²C, SMBus |
| Package Type | 8-TSSOP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- 4-bit I²C-bus and SMBus I/O expander
- 256 discrete dimming steps for precise LED brightness control
- Support for RGB color mixing and backlighting
- Linear dimming control
- Low standby current
- Operating voltage range: 2.3 V to 5.5 V
Applications
- LED backlighting in displays and signage
- RGB LED lighting systems
- Automotive lighting systems
- Consumer electronics requiring LED dimming control
- Industrial control panels and displays
Q & A
- What is the PCA9533DP/01,118 used for? The PCA9533DP/01,118 is used for dimming LEDs in various applications, including RGB color mixing and backlighting.
- How many dimming steps does the PCA9533DP/01,118 support? It supports 256 discrete dimming steps.
- What interface does the PCA9533DP/01,118 use? It uses the I²C and SMBus interfaces.
- What is the maximum output current per channel? The maximum output current per channel is 25 mA.
- What is the package type of the PCA9533DP/01,118? The package type is 8-TSSOP.
- What is the operating temperature range of the PCA9533DP/01,118? The operating temperature range is -40°C to +85°C.
- Can the PCA9533DP/01,118 be used in automotive applications? Yes, it can be used in automotive lighting systems.
- Is the PCA9533DP/01,118 suitable for consumer electronics? Yes, it is suitable for consumer electronics requiring LED dimming control.
- What is the operating voltage range of the PCA9533DP/01,118? The operating voltage range is 2.3 V to 5.5 V.
- Does the PCA9533DP/01,118 support linear dimming control? Yes, it supports linear dimming control.
