PCA9516AD,118

Product Overview

Category

The PCA9516AD,118 belongs to the category of I2C bus repeaters and level shifters.

Use

It is primarily used for extending the range of I2C bus communication and converting voltage levels between different devices.

Characteristics

• Supports bidirectional data transfer on the I2C bus.
• Provides level shifting between low-voltage and high-voltage I2C buses.
• Enables long-distance communication by buffering and amplifying signals.
• Supports multiple devices on the same bus.

Package

The PCA9516AD,118 is available in a small outline package (SO) with eight pins.

Essence

The essence of PCA9516AD,118 lies in its ability to ensure reliable and efficient communication between I2C devices operating at different voltage levels.

Packaging/Quantity

The PCA9516AD,118 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 400 kbit/s
• Number of Channels: 1
• Input Low Voltage (VIL): 0.3V x VDD
• Input High Voltage (VIH): 0.7V x VDD
• Output Low Voltage (VOL): 0.4V
• Output High Voltage (VOH): 0.9V x VDD

Detailed Pin Configuration

The PCA9516AD,118 has the following pin configuration:

1. SDA_IN: Input for the I2C data signal.
2. SCL_IN: Input for the I2C clock signal.
3. EN: Enable pin for controlling the device operation.
4. VCC: Supply voltage for the device.
5. GND: Ground reference.
6. SDA_OUT: Output for the level-shifted I2C data signal.
7. SCL_OUT: Output for the level-shifted I2C clock signal.
8. NC: No connection.

Functional Features

• Bidirectional buffering and level shifting of I2C signals.
• Automatic detection and switching between high-voltage and low-voltage devices.
• Supports multiple devices on the same bus without interference.
• Provides voltage translation to ensure proper communication between devices with different voltage levels.

Advantages and Disadvantages

Advantages

• Enables long-distance communication between I2C devices.
• Simplifies interfacing between devices operating at different voltage levels.
• Supports multiple devices on the same bus, enhancing system flexibility.
• Provides reliable and efficient data transfer.

Disadvantages

• Limited to a maximum data rate of 400 kbit/s.
• Requires careful consideration of voltage compatibility between devices.

Working Principles

The PCA9516AD,118 operates by receiving the I2C data and clock signals from the low-voltage side (SDAIN and SCLIN) and buffering them to the high-voltage side (SDAOUT and SCLOUT). It automatically detects the voltage level of the connected devices and adjusts the level shifting accordingly. The enable pin (EN) controls the operation of the device.

Detailed Application Field Plans

The PCA9516AD,118 finds applications in various fields, including:

1. Industrial automation: Facilitating communication between I2C-based sensors, actuators, and controllers operating at different voltage levels.
2. Consumer electronics: Enabling interoperability between I2C devices in smartphones, tablets, and other portable devices.
3. Automotive systems: Supporting communication between I2C modules in vehicles with varying voltage requirements.
4. Medical devices: Ensuring seamless connectivity between I2C-based medical instruments and monitoring systems.

Detailed and Complete Alternative Models

1. PCA9306: Similar to PCA9516AD,118, but with a different pin configuration.
2. TCA9517: Provides level shifting for multiple I2C buses simultaneously.
3. TXB0108: Offers bidirectional voltage-level translation for various communication protocols.

These alternative models offer similar functionality to the PCA9516AD,118 and can be considered based on specific application requirements.

In conclusion, the PCA9516AD,118 is a versatile I2C bus repeater and level shifter that enables reliable communication between devices operating at different voltage levels. Its compact package, functional features, and wide range of applications make it an essential component in various industries.