Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
TCA9617ADGKR
Visa detalj Datablad

TCA9617ADGKR

Product Overview

Category

TCA9617ADGKR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for I2C bus repeater applications.

Characteristics

  • TCA9617ADGKR is a bidirectional translating switch, which enables voltage-level translation between low-voltage and high-voltage I2C buses.
  • It operates as a dual bidirectional translator, allowing voltage level shifting from 1.8V to 5V and vice versa.
  • The device supports clock frequencies up to 400 kHz.
  • It features two independent channels, each capable of translating a different voltage level.
  • TCA9617ADGKR has built-in noise filtering, ensuring reliable data transmission in noisy environments.

Package

The TCA9617ADGKR IC is available in a compact VSSOP-10 package.

Essence

The essence of TCA9617ADGKR lies in its ability to facilitate communication between I2C devices operating at different voltage levels.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing 3000 units.

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 400 kHz
  • Number of Channels: 2
  • Input Logic Compatibility: 1.8V, 2.5V, 3.3V, 5V
  • Output Logic Compatibility: 1.8V, 2.5V, 3.3V, 5V

Detailed Pin Configuration

The TCA9617ADGKR IC consists of ten pins, each serving a specific function:

  1. SDA1: Channel 1 Serial Data Line
  2. SCL1: Channel 1 Serial Clock Line
  3. OE1: Channel 1 Output Enable
  4. GND: Ground
  5. VCC: Supply Voltage
  6. SDA2: Channel 2 Serial Data Line
  7. SCL2: Channel 2 Serial Clock Line
  8. OE2: Channel 2 Output Enable
  9. NC: No Connection
  10. ADDR: Device Address Input

Functional Features

  • Bidirectional voltage-level translation between low-voltage and high-voltage I2C buses.
  • Independent channel operation for simultaneous translation of two different voltage levels.
  • Noise filtering to ensure reliable data transmission in noisy environments.
  • Supports clock frequencies up to 400 kHz.

Advantages and Disadvantages

Advantages

  • Enables communication between I2C devices operating at different voltage levels.
  • Compact package size allows for space-efficient integration into various applications.
  • Built-in noise filtering enhances data reliability.

Disadvantages

  • Limited to voltage level translation within the specified range (1.8V to 5V).
  • May require additional components for more complex I2C bus configurations.

Working Principles

The TCA9617ADGKR IC functions as a bidirectional translating switch, facilitating voltage-level translation between low-voltage and high-voltage I2C buses. It achieves this by utilizing two independent channels, each capable of translating a different voltage level. The device operates by monitoring the input logic levels on both sides and adjusting the output levels accordingly, ensuring seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

The TCA9617ADGKR IC finds application in various scenarios where I2C devices with different voltage requirements need to communicate. Some potential application fields include:

  1. Embedded Systems: Integration into microcontroller-based systems that utilize I2C communication for peripheral devices.
  2. Industrial Automation: Enabling communication between I2C sensors and controllers operating at different voltage levels.
  3. Consumer Electronics: Facilitating interoperability between I2C devices in smartphones, tablets, and other portable devices.
  4. Automotive Electronics: Supporting communication between I2C modules with varying voltage requirements in automotive systems.

Detailed and Complete Alternative Models

  1. PCA9306: Bidirectional I2C-bus and SMBus voltage-level translator with automatic direction sensing.
  2. TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing.
  3. BSS138: N-channel enhancement mode MOSFET used for level shifting applications.

These alternative models offer similar functionality to the TCA9617ADGKR IC and can be considered as alternatives based on specific application requirements.

Word count: 536 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TCA9617ADGKR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TCA9617ADGKR:

  1. Q: What is TCA9617ADGKR? A: TCA9617ADGKR is a low-voltage translating I2C bus repeater with an operating supply voltage range from 1.65V to 3.6V.

  2. Q: What is the purpose of TCA9617ADGKR? A: TCA9617ADGKR is used to extend the reach of I2C bus communication by buffering and translating signals between devices operating at different voltage levels.

  3. Q: How many devices can be connected using TCA9617ADGKR? A: TCA9617ADGKR supports up to 8 devices on the downstream side, allowing multiple devices to communicate over a longer distance.

  4. Q: What is the maximum data rate supported by TCA9617ADGKR? A: TCA9617ADGKR supports a maximum data rate of 400 kHz, making it suitable for high-speed I2C applications.

  5. Q: Can TCA9617ADGKR be used in both bidirectional and unidirectional I2C communication? A: Yes, TCA9617ADGKR supports both bidirectional and unidirectional I2C communication, providing flexibility in various system configurations.

  6. Q: Does TCA9617ADGKR require external power supply? A: Yes, TCA9617ADGKR requires an external power supply connected to the VCC pin to operate.

  7. Q: What is the voltage level translation capability of TCA9617ADGKR? A: TCA9617ADGKR provides voltage level translation between two different voltage domains, such as 1.8V and 3.3V.

  8. Q: Can TCA9617ADGKR be used in hot-swapping applications? A: Yes, TCA9617ADGKR supports hot-swapping, allowing devices to be added or removed from the I2C bus without disrupting the communication.

  9. Q: Does TCA9617ADGKR have any built-in protection features? A: Yes, TCA9617ADGKR includes built-in ESD protection on the I2C bus pins, providing robustness against electrostatic discharge events.

  10. Q: What is the package type of TCA9617ADGKR? A: TCA9617ADGKR is available in a small form factor VSSOP-8 package, making it suitable for space-constrained applications.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.