Overview
The PCA9532PW,112 is a 16-bit I2C-bus LED dimmer and I/O expander from NXP USA Inc., designed for reliable and versatile LED control in various applications. This device is part of the PCA9532 series and is packaged in a 24-pin TSSOP (Thin Shrink Small Outline Package). It is optimized for high-speed and low-voltage operations, making it suitable for a wide range of applications including industrial automation, home automation, and automotive systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA9532PW,112 |
| Package/Case | TSSOP-24 |
| Operating Voltage Range | 2.3V to 5.5V |
| Number of LED Drivers | 16 |
| PWM Resolution | 256 brightness steps |
| Blink Rates | Two selectable, fully programmable blink rates (0.591 Hz to 152 Hz) |
| I2C Bus Compatibility | I2C-bus and SMBus compatible |
| Standby Current | Low standby current consumption |
| ESD Protection | Exceeds 2000 V HBM, 150 V MM, and 1000 V CDM |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- 16-Channel I2C-Bus 8-Bit PWM LED Controller: Provides reliable LED control and dimming through PWM control.
- Adjustable LED Brightness: Allows for adjustable LED brightness in 256 discrete steps.
- Multiple Devices Daisy-Chaining: Enables multiple PCA9532PW devices to be daisy-chained on the same I2C-bus.
- Two Programmable PWM Base Addresses: Offers two programmable PWM base addresses for flexible configuration.
- Internal Oscillator: Requires no external components and includes two user-programmable blink rates and duty cycles.
- Low Standby Current Consumption: Designed for low power consumption during standby mode.
- I2C-Bus Interface Logic: Compatible with SMBus and includes noise filter on SCL/SDA inputs.
- Active LOW Reset Input: Allows for hardware reset and power-on reset initialization.
- Supports Hot Insertion: Ensures safe operation during hot insertion.
Applications
- Industrial Automation and Control Systems: Suitable for industrial automation and control systems requiring reliable LED control.
- Home Automation Systems: Ideal for home automation systems where flexible LED control is necessary.
- Automotive Applications: Can be used in automotive applications, such as dashboard lighting and indicator lights.
Q & A
- Q: What is the maximum number of LEDs that can be controlled by the PCA9532PW?
A: The PCA9532PW can control up to 16 LEDs, depending on the specific application and configuration.
- Q: Can the PCA9532PW be used in automotive applications?
A: Yes, the PCA9532PW is suitable for use in automotive applications where reliable LED control is required.
- Q: What is the operating voltage range of the PCA9532PW?
A: The PCA9532PW operates over a voltage range of 2.3V to 5.5V.
- Q: How many brightness steps are available for LED dimming?
A: The PCA9532PW allows for 256 discrete brightness steps.
- Q: Is the PCA9532PW compatible with SMBus?
A: Yes, the PCA9532PW is compatible with both I2C-bus and SMBus.
- Q: What is the purpose of the internal oscillator in the PCA9532PW?
A: The internal oscillator allows for two user-programmable blink rates and duty cycles without requiring external components.
- Q: Can multiple PCA9532PW devices be connected on the same I2C-bus?
A: Yes, multiple PCA9532PW devices can be daisy-chained on the same I2C-bus.
- Q: What is the standby current consumption of the PCA9532PW?
A: The PCA9532PW is designed for low standby current consumption.
- Q: Is the PCA9532PW environmentally compliant?
A: Yes, the PCA9532PW is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- Q: How do I reset the PCA9532PW?
A: The PCA9532PW can be reset using the active LOW hardware reset pin (RESET) or through a Power-On Reset (POR).
