PCA9517DP,118

The PCA9517DP,118 is a low-power I2C-bus/SMBus buffer with hot insertion capability. This IC provides level-shifting and buffering for the I2C-bus/SMBus, allowing voltage translation and buffering between different voltage domains. It is designed to enable extended-length I2C-bus/SMBus systems, making it ideal for large-scale I2C-bus/SMBus applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• EN: Enable input pin for activating the buffer
• GND: Ground connection
• Vref1: First voltage reference
• Yn: Buffered I2C/SMBus data line n
• A0, A1, A2: Device address inputs for I2C-bus/SMBus addressing
• Vref2: Second voltage reference
• OUT: Buffered output for the I2C-bus/SMBus
• VCC: Positive power supply

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the PCA9517DP,118 IC for a visual representation.

Key Features

• Level-Shifting: Provides bidirectional voltage level translation between 2.5V, 3.3V, and 5V buses
• Hot Insertion Capability: Supports hot insertion of the powered device without causing data corruption on the I2C-bus/SMBus
• Buffered Inputs and Outputs: Offers buffered inputs and outputs for the I2C-bus/SMBus, enabling signal integrity over longer distances
• Extended-Length Bus Support: Designed to extend the I2C-bus/SMBus, facilitating large-scale bus applications
• Low-Power Operation: Operates with low power consumption, suitable for battery-powered systems

Note: For detailed technical specifications, please refer to the PCA9517DP,118 datasheet.

Application

• Embedded Systems: Ideal for level-shifting and buffering signals in embedded systems with multiple voltage domains
• Industrial Automation: Suitable for industrial automation systems requiring voltage translation and buffering in I2C/SMBus communication
• Consumer Electronics: Used in various consumer electronic devices for extending I2C-bus/SMBus communication

Functionality

The PCA9517DP,118 is a low-power I2C-bus/SMBus buffer with level-shifting capability. It facilitates voltage translation and buffering of I2C/SMBus signals, enabling seamless communication between devices operating at different voltage levels.

Usage Guide

• Enable Input: Connect the EN pin to control the activation of the buffer
• Address Configuration: Set the device address using the A0, A1, and A2 pins for I2C-bus/SMBus addressing
• Voltage Supply: Connect VCC (Pin 8) to the positive power supply (2.5V, 3.3V, or 5V) as per system requirements

Frequently Asked Questions

Q: What voltage domains does the PCA9517DP,118 support for level-shifting?
A: The PCA9517DP,118 provides bidirectional voltage level translation between 2.5V, 3.3V, and 5V buses.

Q: Can the PCA9517DP,118 be used in battery-powered systems?
A: Yes, the PCA9517DP,118 operates with low power consumption, making it suitable for battery-powered applications requiring I2C/SMBus buffering and level-shifting.