Overview
The PCA9635PW,118 is a 16-bit I²C-bus controlled LED driver produced by NXP USA Inc. This component is specifically optimized for Red/Green/Blue/Amber (RGBA) color mixing applications, making it ideal for various lighting and display solutions. The PCA9635PW,118 features advanced PWM control, allowing for precise brightness and color adjustments of each LED output.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | TSSOP28 (plastic thin shrink small outline package; 28 leads; body width 4.4 mm) |
| Number of LED Outputs | 16 |
| PWM Frequency (Individual) | 97 kHz |
| PWM Resolution (Individual) | 8-bit (256 steps) |
| PWM Frequency (Group) | Fixed: 190 Hz, Adjustable: 24 Hz to once every 10.73 seconds |
| PWM Resolution (Group) | 8-bit (256 steps) |
| Supply Voltage | Not specified in the provided sources, but typically within the range for similar LED drivers |
| Operating Temperature | -40 °C to +85 °C |
| Compliance | AEC-Q100 compliant (for PCA9635PW/Q900) |
Key Features
- I²C-bus interface for control and communication
- 16 individual LED outputs, each with its own 8-bit PWM controller (97 kHz frequency)
- Group PWM controller with adjustable frequency (24 Hz to once every 10.73 seconds) and 8-bit resolution
- Duty cycle adjustable from 0% to 99.6% for both individual and group PWM controllers
- Support for RGBA color mixing applications
- High-impedance output when output drivers are not enabled
- Latch-up testing exceeds 100 mA (JEDEC Standard JESD78)
- ESD protection (1000 V CDM per JESD22-C101)
Applications
- RGB or RGBA LED drivers
- LED status information displays
- LED displays and signage
- LCD backlights
- Keypad backlights for cellular phones or handheld devices
Q & A
- What is the PCA9635PW,118 used for?
The PCA9635PW,118 is used for controlling and driving LEDs in RGBA color mixing applications.
- How many LED outputs does the PCA9635PW,118 have?
The PCA9635PW,118 has 16 individual LED outputs.
- What is the PWM frequency of the individual LED outputs?
The PWM frequency of the individual LED outputs is 97 kHz.
- What is the resolution of the PWM controllers?
Both the individual and group PWM controllers have an 8-bit resolution (256 steps).
- What is the operating temperature range of the PCA9635PW,118?
The operating temperature range is -40 °C to +85 °C.
- Is the PCA9635PW,118 AEC-Q100 compliant?
Yes, the PCA9635PW/Q900 version is AEC-Q100 compliant.
- What interface does the PCA9635PW,118 use for control?
The PCA9635PW,118 uses an I²C-bus interface for control and communication.
- Can the duty cycle of the PWM controllers be adjusted?
Yes, the duty cycle of both the individual and group PWM controllers can be adjusted from 0% to 99.6%.
- What type of package does the PCA9635PW,118 come in?
The PCA9635PW,118 comes in a TSSOP28 package.
- Does the PCA9635PW,118 have ESD protection?
Yes, it has ESD protection of 1000 V CDM per JESD22-C101.
