Overview
The PCA9552D,118 is a 16-bit I²C-bus LED driver with programmable blink rates, manufactured by NXP USA Inc. This component is designed to control LEDs in I²C-bus and SMBus applications, helping to limit bus traffic or free up the I²C-bus controller's resources. It features an internal oscillator, requiring no external components, and supports hot insertion, making it versatile for various applications.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VDD) | 2.3 | 5.5 | V |
| Output Current per Pin (IO(LEDn)) | -25 | 25 | mA |
| Total Ground Supply Current (ISS) | - | 200 | mA |
| Total Power Dissipation (Ptot) | - | 400 | mW |
| Ambient Temperature (Tamb) | -40 | 85 | °C |
| SCL Clock Frequency (fSCL) | 0 | 400 | kHz |
| ESD Protection | - | 2000 V HBM, 150 V MM, 1000 V CDM | - |
Key Features
- 16 LED drivers with programmable on, off, and flashing modes at two selectable blink rates (between 0.172 Hz and 44 Hz)
- Input/outputs not used as LED drivers can be used as regular GPIOs
- Internal oscillator requires no external components
- I²C-bus interface logic compatible with SMBus
- Internal power-on reset and active LOW reset input
- Noise filter on SCL/SDA inputs
- 16 open-drain outputs directly drive LEDs to 25 mA
- Edge rate control on outputs and no glitch on power-up
- Supports hot insertion and low standby current
- ESD protection exceeds 2000 V HBM, 150 V MM, and 1000 V CDM
- Latch-up testing exceeds 100 mA according to JEDEC Standard JESD78
Applications
The PCA9552D is suitable for various applications where LED control and GPIO expansion are necessary. These include:
- I²C-bus and SMBus systems requiring LED control with minimal bus traffic
- Embedded systems needing GPIO expansion
- Automotive and industrial lighting systems
- Consumer electronics with LED indicators
- Any system requiring programmable LED blink rates and low power consumption
Q & A
- What is the PCA9552D used for?
The PCA9552D is used to control LEDs in I²C-bus and SMBus applications, allowing for programmable blink rates and GPIO expansion.
- What are the available package types for the PCA9552D?
The PCA9552D is available in SO24, TSSOP24, and HVQFN24 packages.
- What is the operating voltage range of the PCA9552D?
The operating voltage range is from 2.3 V to 5.5 V.
- How many LED drivers does the PCA9552D have?
The PCA9552D has 16 LED drivers.
- Can the PCA9552D be used for GPIO expansion?
- What is the maximum output current per pin?
The maximum output current per pin is 25 mA.
- Does the PCA9552D support hot insertion?
- What is the ESD protection level of the PCA9552D?
- What is the ambient temperature range for the PCA9552D?
- How many devices can operate on the same bus using the PCA9552D?
