Overview
The PCA9633PW,118 is a 4-bit I²C-bus controlled LED driver produced by NXP USA Inc. This component is optimized for Red/Green/Blue/Amber (RGBA) color mixing applications, making it suitable for a variety of lighting and display solutions. The PCA9633PW,118 is part of the PCA9633 family, which offers flexible and programmable LED control through an I²C-bus interface.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 16-TSSOP (0.173, 4.40mm Width) |
| Number of LED Outputs | 4 |
| Supply Voltage | Up to 5.5 V |
| Maximum Operating Temperature | 85 °C |
| Maximum Power Dissipation | 400 mW |
| Output Current per LED | 100 mA (sink), 25 mA (source) at 5 V |
| I²C-bus Interface Speed | 1 MHz Fast-mode Plus |
| PWM Frequency for Individual LED Brightness | 97 kHz |
| PWM Frequency for Group Brightness | 190 Hz |
| PWM Duty Cycle Range | 0% to 99.6% |
Key Features
- 4 LED drivers, each programmable for off, on, brightness, and group dimming/blinking.
- 256-step (8-bit) linear programmable brightness per LED output using a 97 kHz PWM signal.
- 256-step group brightness control and blinking with frequency programmable from 24 Hz to 10.73 seconds.
- 1 MHz Fast-mode Plus I²C-bus interface with 30 mA high drive capability on SDA output.
- Totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software-programmable open-drain LED outputs selection.
- Output state change programmable on the Acknowledge or the STOP Command.
Applications
- RGB or RGBA LED drivers for color mixing applications.
- LED status information and displays.
- LCD backlights.
- Keypad backlights for cellular phones or handheld devices.
Q & A
- What is the PCA9633PW,118 used for?
The PCA9633PW,118 is used for controlling and driving LEDs in various applications, including RGB or RGBA color mixing, LED status information, LCD backlights, and keypad backlights.
- What is the package type of the PCA9633PW,118?
The PCA9633PW,118 comes in a 16-TSSOP package with a width of 4.40mm.
- What is the maximum supply voltage for the PCA9633PW,118?
The maximum supply voltage is 5.5 V.
- How many LED outputs does the PCA9633PW,118 have?
The PCA9633PW,118 has 4 LED outputs.
- What is the maximum operating temperature of the PCA9633PW,118?
The maximum operating temperature is 85 °C.
- What is the PWM frequency used for individual LED brightness control?
The PWM frequency used is 97 kHz.
- Can the output state change be programmed?
Yes, the output state change can be programmed to occur on the Acknowledge or the STOP Command.
- What is the I²C-bus interface speed of the PCA9633PW,118?
The I²C-bus interface speed is 1 MHz Fast-mode Plus.
- How many steps are available for programmable brightness per LED output?
There are 256 steps (8-bit) available for programmable brightness per LED output.
- What is the range of the PWM duty cycle?
The PWM duty cycle range is from 0% to 99.6%.
