PCA9306DCUTG4

Product Overview

Category: Integrated Circuit (IC)

Use: Level-Translating I2C Bus Repeater

Characteristics: - Bidirectional voltage-level translator for I2C bus applications - Supports bidirectional data transfer between low-voltage and high-voltage I2C buses - Provides level shifting with no direction pin required - Compatible with I2C standard mode, fast mode, and fast mode plus - Low standby current consumption - ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

Package: DCU (SOT-23) package

Essence: The PCA9306DCUTG4 is a level-translating I2C bus repeater that allows bidirectional voltage-level translation between low-voltage and high-voltage I2C buses.

Packaging/Quantity: The PCA9306DCUTG4 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.2 V to 5.5 V
• High-Level Input Voltage (VIH): 0.7 x VDD to VDD + 0.3 V
• Low-Level Input Voltage (VIL): -0.3 V to 0.3 V
• High-Level Output Voltage (VOH): 0.7 x VDD to VDD + 0.3 V
• Low-Level Output Voltage (VOL): -0.3 V to 0.3 V
• Standby Current: 10 µA (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCA9306DCUTG4 has the following pin configuration:

1. A-side SDA (Serial Data)
2. A-side SCL (Serial Clock)
3. B-side SDA (Serial Data)
4. B-side SCL (Serial Clock)
5. GND (Ground)
6. OE (Output Enable)

Functional Features

• Bidirectional voltage-level translation: Allows communication between low-voltage and high-voltage I2C buses.
• Automatic direction sensing: No need for a separate direction pin.
• Level shifting: Translates logic levels to ensure compatibility between different voltage domains.
• ESD protection: Provides robust electrostatic discharge protection.

Advantages and Disadvantages

Advantages: - Simplifies level translation in I2C bus applications - Supports multiple I2C bus speeds - Low standby current consumption - Compact SOT-23 package for space-constrained designs

Disadvantages: - Limited to I2C bus applications only - Not suitable for level translation in other communication protocols

Working Principles

The PCA9306DCUTG4 utilizes a bidirectional voltage-level translator to enable communication between low-voltage and high-voltage I2C buses. It automatically senses the direction of data flow and performs the necessary level shifting to ensure proper signal transfer.

Detailed Application Field Plans

The PCA9306DCUTG4 is commonly used in various applications that require level translation in I2C bus communication. Some typical application fields include:

1. Consumer electronics: Enables communication between low-voltage microcontrollers and high-voltage sensors or displays.
2. Industrial automation: Facilitates data exchange between low-voltage control systems and high-voltage actuators or sensors.
3. Automotive electronics: Allows communication between low-voltage ECUs (Electronic Control Units) and high-voltage automotive components.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator with Automatic Direction Sensing
2. SN74LVC1T45DBVR: Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
3. BSS138LT1G: Single N-Channel Logic Level Enhancement Mode Field Effect Transistor

These alternative models offer similar functionality to the PCA9306DCUTG4 and can be considered as alternatives based on specific application requirements.

In conclusion, the PCA9306DCUTG4 is a versatile level-translating I2C bus repeater that simplifies voltage-level translation in various applications. Its bidirectional capability, automatic direction sensing, and compact package make it an ideal choice for designers working with I2C bus communication.