Overview
The PCA9552PW,112 is a 16-bit I²C-bus LED driver with programmable blink rates, manufactured by NXP USA Inc. This device is designed for applications where LEDs need to be controlled with minimal bus traffic, making it ideal for use in various embedded systems. The PCA9552 features an internal oscillator that allows for programmable blink rates, reducing the need for repeated commands from the I²C-bus controller and thus minimizing bus traffic.
Key Specifications
| Parameter | Value |
|---|---|
| Number of LED Drivers | 16 |
| Blink Rates | 2 selectable, fully programmable (0.172 Hz to 44 Hz) |
| Output Current per Bit | 25 mA |
| Output Current per Package | 200 mA |
| Power Supply Voltage | 2.3 V to 5.5 V |
| I²C-bus Clock Frequency | 0 Hz to 400 kHz |
| Package Type | TSSOP24 |
| ESD Protection | 2000 V HBM, 150 V MM, 1000 V CDM |
| Operating Temperature | -40°C to 85°C |
Key Features
- 16 LED drivers with programmable blink rates (frequency and duty cycle)
- 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
- Supports hot insertion and low standby current
- Edge rate control on outputs and no glitch on power-up
- Inputs/outputs not used as LED drivers can be used as regular GPIOs
Applications
The PCA9552PW,112 is suitable for a variety of applications where LED control is necessary, such as in automotive systems, industrial control panels, consumer electronics, and any system requiring I²C-bus or SMBus communication. It is particularly useful in scenarios where minimizing bus traffic is crucial.
Q & A
- What is the PCA9552PW,112 used for?
The PCA9552PW,112 is used as a 16-bit I²C-bus LED driver with programmable blink rates, ideal for controlling LEDs in various embedded systems. - How many LED drivers does the PCA9552PW,112 have?
The device has 16 LED drivers. - What are the programmable blink rates of the PCA9552PW,112?
The blink rates are fully programmable between 0.172 Hz and 44 Hz. - What is the maximum output current per bit?
The maximum output current per bit is 25 mA. - What is the operating power supply voltage range?
The operating power supply voltage range is from 2.3 V to 5.5 V. - Is the PCA9552PW,112 compatible with SMBus?
Yes, it is compatible with SMBus. - Does the PCA9552PW,112 support hot insertion?
Yes, it supports hot insertion. - What is the package type of the PCA9552PW,112?
The package type is TSSOP24. - What is the ESD protection level of the PCA9552PW,112?
The ESD protection exceeds 2000 V HBM, 150 V MM, and 1000 V CDM. - Can unused LED drivers be used as GPIOs?
Yes, inputs/outputs not used as LED drivers can be used as regular GPIOs. - Does the PCA9552PW,112 have internal power-on reset and active LOW reset input?
Yes, it has both internal power-on reset and active LOW reset input.
