Overview
The PCA9632TK,118, produced by NXP USA Inc., is a 4-bit I2C-bus controlled LED driver optimized for Red/Green/Blue/Amber (RGBA) color mixing applications. It is designed as a drop-in upgrade for the PCA9633, offering a 40% power reduction. This device is particularly suited for applications requiring individual and group brightness control of LEDs.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package Type | 8-VFDFN Exposed Pad, TSSOP8, TSSOP10, HVSON8 | Variety of package options available |
| Supply Voltage Range | 2.3 V to 5.5 V | Operating voltage range |
| Output Current Capability | 25 mA sink, 10 mA source at 5 V | Current handling capability of each output |
| PWM Frequency | 1.5625 kHz (individual), 6.25 kHz (group), 190 Hz (global) | Frequencies for individual and group brightness control |
| Brightness Resolution | 256 steps (8-bit) for individual, 64 steps (6-bit) for group, 16 steps (4-bit) for global | Resolution for brightness control in different modes |
| I2C-Bus Frequency | Up to 1 MHz (Fast-mode Plus) | Frequency of the I2C-bus interface |
| Operating Temperature Range | -40 °C to +85 °C | Temperature range for operation |
| ESD Protection | 5000 V HBM, 1000 V CDM | Electrostatic discharge protection levels |
Key Features
- Individual and Group Brightness Control: Each LED output has its own PWM controller for individual brightness control, and a global PWM controller for group dimming.
- Software Programmable Outputs: Outputs can be programmed to be either open-drain or totem pole with adjustable current capabilities.
- Fast-mode Plus I2C-Bus Interface: Supports up to 1 MHz frequency and high capacitive bus operation.
- Software Reset Feature: Allows the device to be reset through the I2C-bus.
- Internal Oscillator and Power-On Reset: No external components required for the internal oscillator; includes internal power-on reset for easy initialization.
- Noise Filter and Edge Rate Control: Includes noise filters on SDA/SCL inputs and edge rate control on outputs to ensure reliable operation.
- Low Standby Current: Less than 1 μA standby current for power efficiency.
- Hot Insertion Support: Device supports hot insertion, making it suitable for dynamic system configurations.
Applications
- RGB or RGBA LED Drivers: Ideal for color mixing applications in LED displays and lighting systems.
- LED Status Information: Can be used to display status information through LED indicators.
- LED Displays: Suitable for various LED display applications requiring dynamic brightness control.
- High-Speed Mode Controllers: Compatible with high-speed mode (Hs-mode) controllers for advanced applications.
Q & A
- What is the PCA9632TK,118 used for?
The PCA9632TK,118 is used as a 4-bit I2C-bus controlled LED driver optimized for RGBA color mixing applications.
- What are the different PWM frequencies supported by the PCA9632TK,118?
The device supports PWM frequencies of 1.5625 kHz for individual brightness control, 6.25 kHz for group dimming, and 190 Hz for global brightness control.
- What is the resolution of the brightness control for individual and group modes?
The individual brightness control has a 256-step (8-bit) resolution, while the group dimming mode has a 64-step (6-bit) resolution. The global brightness control has a 16-step (4-bit) resolution.
- What is the operating voltage range of the PCA9632TK,118?
The operating voltage range is from 2.3 V to 5.5 V.
- Does the PCA9632TK,118 support hot insertion?
- What is the standby current of the PCA9632TK,118?
The standby current is less than 1 μA.
- What are the ESD protection levels of the PCA9632TK,118?
The device has ESD protection levels of 5000 V HBM and 1000 V CDM.
- Can the PCA9632TK,118 be reset through the I2C-bus?
- What types of packages are available for the PCA9632TK,118?
The device is available in 8-VFDFN Exposed Pad, TSSOP8, TSSOP10, and HVSON8 packages.
- What is the operating temperature range of the PCA9632TK,118?
The operating temperature range is from -40 °C to +85 °C.
