Overview
The PCA9624BS,118 is an I2C-bus controlled 8-bit LED driver produced by NXP USA Inc. This component is optimized for voltage switch dimming and blinking of Red/Green/Blue/Amber (RGBA) LEDs. It features individual and group PWM control, allowing for precise brightness and blinking adjustments. The PCA9624 is suitable for a wide range of LED lighting applications, including backlighting, status indicators, and display lighting.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V |
| Output Current per Channel | Up to 100 mA |
| Output Voltage Tolerance | Up to 40 V |
| Individual PWM Frequency | 97 kHz |
| Individual PWM Resolution | 256 steps (8-bit) |
| Group PWM Frequency | 190 Hz (fixed), programmable from 24 Hz to 10.73 s |
| Group PWM Resolution | 256 steps (8-bit) |
| Hardware Address Pins | 7 pins, allowing 126 devices on the same I2C-bus |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | HVQFN24 |
Key Features
- 256-step (8-bit) linear programmable brightness per LED output using a 97 kHz PWM signal.
- 256-step group brightness control and blinking with programmable frequency from 24 Hz to 10.73 seconds.
- Eight open-drain outputs that can sink between 0 mA to 100 mA and are tolerant to a maximum off-state voltage of 40 V.
- Active LOW Output Enable (OE) input pin for hardware blinking and dimming of the LEDs.
- Output state change programmable on the Acknowledge or the STOP Command to update outputs byte-by-byte or all at the same time.
- 7 hardware address pins allowing 126 PCA9624 devices to be connected to the same I2C-bus and individually programmed.
Applications
- Backlighting for LCD displays and keypads.
- LED status indicators and signage.
- Automotive lighting systems.
- Consumer electronics such as TVs, monitors, and handheld devices.
- Industrial control panels and displays.
Q & A
- What is the PCA9624BS,118 used for?
The PCA9624BS,118 is used for controlling and dimming LEDs in various applications, including backlighting, status indicators, and display lighting.
- What is the supply voltage range of the PCA9624BS,118?
The supply voltage range is from 2.3 V to 5.5 V.
- How many hardware address pins does the PCA9624BS,118 have?
The PCA9624BS,118 has 7 hardware address pins, allowing up to 126 devices to be connected to the same I2C-bus.
- What is the maximum output current per channel?
The maximum output current per channel is up to 100 mA.
- What is the operating temperature range of the PCA9624BS,118?
The operating temperature range is from -40°C to +85°C.
- How many steps of PWM resolution does the PCA9624BS,118 have?
The PCA9624BS,118 has 256 steps (8-bit) of PWM resolution for both individual and group PWM control.
- Can the PCA9624BS,118 be used with high-voltage LEDs?
- What is the frequency range for the group PWM control?
The group PWM control frequency is programmable from 24 Hz to 10.73 seconds.
- Does the PCA9624BS,118 support hardware blinking and dimming?
- How can the output state be updated?
The output state can be updated on the Acknowledge or the STOP Command to update outputs byte-by-byte or all at the same time.
