Overview
The PCA9633PW112, produced by NXP USA Inc., is an I²C-bus controlled 4-bit LED driver specifically optimized for Red/Green/Blue/Amber (RGBA) color mixing applications. This integrated circuit is designed to provide precise control over LED outputs, making it ideal for various lighting solutions. The device features an internal 25 MHz oscillator, eliminating the need for external components, and includes an internal power-on reset and noise filter on SDA/SCL inputs to ensure reliable operation.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Number of Channels | 4 Channel |
| Output Current per Channel | Up to 25 mA at 5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, and 1000 V CDM |
| Package Types | TSSOP8, TSSOP16, HVSON8 |
| I²C-Bus Addressing | Hardware and software programmable addresses |
| PWM Frequency | 97 kHz fixed frequency |
| PWM Duty Cycle Control | 256 linear steps from 0% to 99.6% |
Key Features
- Active LOW Output Enable (OE) input pin for hardware blinking and dimming of LEDs.
- Hardware and software programmable I²C-bus addresses, allowing multiple devices to be connected to the same bus.
- Software Reset feature (SWRST Call) for resetting the device through the I²C-bus.
- No glitch on power-up and supports hot insertion.
- Low standby current and edge rate control on outputs.
- INVRT and OUTDRV bits in the MODE2 register for controlling external drivers and LED output polarity.
Applications
- RGBA color mixing applications such as LED lighting systems, display backlighting, and ambient lighting.
- Automotive lighting systems where precise color control is necessary.
- Industrial and consumer electronics requiring advanced LED control.
- Signage and display systems that need dynamic color adjustment.
Q & A
- What is the PCA9633PW112 used for?
The PCA9633PW112 is used for controlling and driving LEDs in RGBA color mixing applications.
- What is the input voltage range of the PCA9633PW112?
The input voltage range is from 2.3 V to 5.5 V.
- How many channels does the PCA9633PW112 have?
The PCA9633PW112 has 4 channels.
- What is the maximum output current per channel?
The maximum output current per channel is up to 25 mA at 5 V.
- What is the operating temperature range of the PCA9633PW112?
The operating temperature range is from -40 °C to +85 °C.
- Does the PCA9633PW112 support hot insertion?
Yes, the PCA9633PW112 supports hot insertion.
- How is the PWM duty cycle controlled in the PCA9633PW112?
The PWM duty cycle is controlled through 256 linear steps from 0% to 99.6% using a 97 kHz fixed frequency signal.
- What types of packages are available for the PCA9633PW112?
The PCA9633PW112 is available in TSSOP8, TSSOP16, and HVSON8 packages.
- Does the PCA9633PW112 have ESD protection?
Yes, the PCA9633PW112 has ESD protection that exceeds 2000 V HBM, 200 V MM, and 1000 V CDM.
- Can the PCA9633PW112 be reset through the I²C-bus?
Yes, the PCA9633PW112 has a Software Reset feature (SWRST Call) for resetting the device through the I²C-bus.
