Overview
The PCA9634D,118 is an 8-bit I²C-bus controlled LED driver produced by NXP USA Inc. This device is optimized for Red/Green/Blue/Amber (RGBA) color mixing applications and is part of the Fast-mode Plus (Fm+) family, offering higher frequency and more densely populated bus operation. It operates with a supply voltage range of 2.3 V to 5.5 V and has outputs that are 5.5 V tolerant, making it versatile for various LED configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | Up to 5.5 V |
| Output Current per Channel | Up to 25 mA |
| Number of Outputs | 8 |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 20-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Dimming Method | I²C |
| Internal Oscillator Frequency | 25 MHz |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, 1000 V CDM |
Key Features
- Fast-mode Plus (Fm+) I²C-bus interface with frequencies up to 1 MHz and bus capacitance up to 4000 pF.
- Active LOW Output Enable (OE) input pin for asynchronous control of LED outputs and external PWM control.
- Software programmable LED Group and three Sub Call I²C-bus addresses for flexible addressing.
- Internal power-on reset and noise filter on SDA/SCL inputs.
- No glitch on power-up and support for hot insertion.
- Low standby current and edge rate control on outputs.
- Seven hardware address pins allowing up to 126 devices on the same I²C-bus.
- Software Reset feature (SWRST Call) through the I²C-bus.
Applications
- RGB or RGBA LED drivers for color mixing applications.
- LED status information and LED displays.
- LCD backlights and keypad backlights for cellular phones or handheld devices.
Q & A
- What is the PCA9634D,118 used for?
The PCA9634D,118 is used for controlling LEDs, particularly in RGB or RGBA color mixing applications, LED status information, LED displays, and backlighting for LCDs and keypads.
- What is the supply voltage range of the PCA9634D,118?
The supply voltage range is from 2.3 V to 5.5 V.
- How many outputs does the PCA9634D,118 have?
The device has 8 outputs.
- What is the maximum output current per channel?
The maximum output current per channel is up to 25 mA.
- What is the operating temperature range of the PCA9634D,118?
The operating temperature range is from -40°C to +85°C.
- What type of dimming does the PCA9634D,118 support?
The device supports I²C dimming.
- Does the PCA9634D,118 have internal ESD protection?
- Can multiple PCA9634D,118 devices be connected to the same I²C-bus?
- Does the PCA9634D,118 support software reset?
- What is the package type of the PCA9634D,118?
The package type is 20-SOIC (0.295", 7.50mm Width).
