Overview
The PCA9552PW,118 is a 16-bit I2C-bus LED driver IC produced by NXP USA Inc. This component is designed to control and drive LEDs in various applications, particularly where it is necessary to limit bus traffic or free up the I2C-bus master's resources. The PCA9552 features programmable blink rates, making it versatile for different lighting requirements.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Number of LED Drivers | Number of LEDs that can be driven | 16 |
| Output Current per Bit | Maximum sink current per output | 25 mA |
| Total Package Current | Maximum total sink current per package | 200 mA |
| Blink Rates | Programmable blink rate frequencies | 0.172 Hz to 44 Hz (5.82 seconds to 0.023 seconds) |
| I2C-Bus Clock Frequency | Operating clock frequency range | 0 Hz to 400 kHz |
| Power Supply Voltage | Operating voltage range | 2.3 V to 5.5 V |
| Package Type | Type of package | TSSOP24 |
| Operating Temperature | Temperature range for operation | -40 °C to +85 °C |
| ESD Protection | Electrostatic discharge protection levels | 2000 V HBM, 150 V MM, 1000 V CDM |
Key Features
- 16 LED drivers with programmable on, off, and flashing states at two selectable blink rates.
- Inputs/outputs not used as LED drivers can be used as General Purpose Parallel Input/Output (GPIO) expansion.
- Internal oscillator requires no external components.
- I2C-bus interface logic compatible with SMBus.
- Internal power-on reset and active LOW hardware reset pin.
- Noise filter on SCL/SDA inputs.
- Edge rate control on outputs and no glitch on power-up.
- Supports hot insertion.
- Low standby current.
- Three hardware address pins allowing up to eight devices on the same bus.
Applications
The PCA9552PW,118 is suitable for various applications where LED control and I2C-bus communication are required. These include:
- Automotive lighting systems where programmable blink rates are necessary.
- Industrial control panels that require multiple LED indicators.
- Consumer electronics such as displays and signage that need dynamic LED lighting.
- Medical devices that require precise LED control and low power consumption.
Q & A
- What is the PCA9552PW,118 used for?
The PCA9552PW,118 is a 16-bit I2C-bus LED driver IC used to control and drive LEDs in various applications, especially where programmable blink rates are required.
- How many LEDs can the PCA9552PW,118 drive?
The PCA9552PW,118 can drive up to 16 LEDs.
- What is the maximum output current per LED?
The maximum output current per LED is 25 mA.
- What are the programmable blink rate frequencies?
The programmable blink rate frequencies range from 0.172 Hz to 44 Hz (5.82 seconds to 0.023 seconds).
- What is the operating voltage range of the PCA9552PW,118?
The operating voltage range is from 2.3 V to 5.5 V.
- What types of packages are available for the PCA9552?
The PCA9552 is available in SO24, TSSOP24, and HVQFN24 packages.
- Does the PCA9552PW,118 support hot insertion?
- What is the operating temperature range of the PCA9552PW,118?
The operating temperature range is from -40 °C to +85 °C.
- What level of ESD protection does the PCA9552PW,118 offer?
The PCA9552PW,118 offers ESD protection exceeding 2000 V HBM, 150 V MM, and 1000 V CDM.
- Can unused LED driver outputs be used as GPIOs?
