TCA9517DR

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TCA9517DR

+Nomenclature

IC TRNSLTR BIDIRECTIONAL 8SOIC

  • FabricantTexas Instruments

  • Pièce fabricant #TCA9517DR

  • Package SOIC-8

  • En stock2525

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Spécifications

Attribut Valeur
Package Tape & Reel (TR),Cut Tape (CT)
Series TCA
ProductStatus Active
TranslatorType Voltage Level
ChannelType Bidirectional
NumberofCircuits 1
ChannelsperCircuit 2
Voltage-VCCA 0.9 V ~ 5.5 V
Voltage-VCCB 2.7 V ~ 5.5 V
OutputType Open Drain
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Présentation

Description

The TCA9517DR is a bidirectional I2C bus repeater designed by Texas Instruments. It facilitates communication in I2C-based systems by buffering and isolating capacitance between different segments of the bus, thus enabling longer bus lengths and more connected devices. This device features two open-drain bidirectional data and clock lines, SDA and SCL, allowing for communication between multiple I2C devices. The TCA9517DR supports standard and fast I2C modes, with bus speeds up to 1 MHz.
A key feature is its ability to handle voltage level translation between 0.9V and 5.5V on one side (A-side) to 2.7V to 5.5V on the other side (B-side), accommodating mixed-voltage environments. This flexibility ensures compatibility between newer low-voltage ICs and older devices. The device also supports hot-swapping and includes a rise-time accelerator for each side to improve signal integrity.
The TCA9517DR is suited for applications in industrial and automotive systems, consumer electronics, and any system that requires extended I2C communication across different voltage levels. It is offered in a space-saving 8-pin SOIC package.

Equivalent

The TCA9517DR is a bidirectional I2C bus repeater. Equivalent products include:
1. PCA9517 from NXP Semiconductors
2. PCA9515A from NXP Semiconductors
3. P82B96 from NXP Semiconductors
4. LTC4311 from Analog Devices
5. ISL33003 from Renesas Electronics
These ICs function similarly as I2C bus repeaters or buffers, helping to extend the range and improve the robustness of I2C communications. Always check the datasheets to ensure compatibility with specific requirements.

Features

The TCA9517DR is a bidirectional I2C bus repeater designed by Texas Instruments. Key features include:
1. Voltage Level Translation: It supports two different voltage levels, allowing for communication between I2C devices operating at different voltage levels, typically from 0.9V to 5.5V.
2. Bidirectional Data Transfer: The repeater allows for bidirectional data transfer on the I2C bus, facilitating seamless communication between master and slave devices.
3. High-Speed Operation: It supports standard-mode and fast-mode I2C devices, with data transfer rates up to 1 MHz.
4. Enable Pin: An active-low enable pin allows the user to disable the device, conserving power and providing greater control over the bus.
5. Noise Filtering: The device has noise filtering on the SDA and SCL lines to improve data integrity.
6. Isolation of Capacitance: It isolates bus capacitance, enhancing the ability to drive longer cables or to connect more devices.
7. Package: It comes in a small-outline package (SOIC) for compact PCB designs.
Overall, the TCA9517DR is ideal for systems requiring voltage translation and bus signal integrity across different I2C devices.

Pinout

The TCA9517DR is an I2C bus buffer with a specific set of pin functions. It is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. Below is a concise summary of its pin count and functions:
1. VCCA (Pin 1): Supply voltage for A-side.
2. A1 (Pin 2): Serial data I/O for A-side.
3. A2 (Pin 3): Serial clock I/O for A-side.
4. GND (Pin 4): Ground reference.
5. B1 (Pin 5): Serial data I/O for B-side.
6. B2 (Pin 6): Serial clock I/O for B-side.
7. VCCB (Pin 7): Supply voltage for B-side.
8. EN (Pin 8): Enable pin for the device.
The TCA9517DR acts as a level-shifter and buffer for I2C signals, allowing for interfacing between I2C buses operating at different voltage levels. The device helps in extending the bus length and supports hot swapping, making it suitable for applications requiring communication across varying logic levels or extended distances.

Manufacturer

The TCA9517DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a broad range of analog and embedded processing chips. These components are essential for various electronic systems, including automotive, industrial, personal electronics, and communication equipment. TI is well-known for its focus on innovation and quality in the semiconductor industry, offering a wide array of products that facilitate efficient energy management, signal processing, and wireless connectivity, among other functions.

Application

The TCA9517DR is a bidirectional I2C bus repeater commonly used in various applications to extend the I2C bus communication range. It is ideal for systems requiring long-distance communication or multiple I2C devices. Common application areas include consumer electronics, industrial automation, automotive systems, and networking equipment. It is particularly useful in scenarios where different voltage levels need to be interfaced, as it supports level shifting between different I2C voltage domains. Additionally, it can be used in complex sensor networks, multi-board communication setups, and distributed control systems to ensure robust data communication across extended distances.

Package

The TCA9517DR is an I2C bus repeater from Texas Instruments. It is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is denoted by the "DR" suffix in the part number, indicating a standard surface-mount configuration suitable for automated assembly processes.

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