TCA4311ADR

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TCA4311ADR

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IC ACCELERATOR I2C HOTSWAP 8SOIC

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Thông số kỹ thuật

thuộc tính Giá trị
Supplier Texas Instruments
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Type Buffer, Accelerator
Applications I²C - Hotswap
Input 2-Wire Bus
Output 2-Wire Bus
Number of Channels 1
Capacitance - Input 10 pF
Voltage - Supply 2.7V ~ 5.5V
Supply Current 5.1mA
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount

Tổng quan

Description

The TCA4311ADR is a Texas Instruments device in the TCA family, typically a bidirectional I2C-bus buffer/level shifter. It’s designed to isolate and translate I2C lines between different voltage domains or to buffer a long I2C run, while allowing safe, two-way communication between master and slave devices. Key ideas: bidirectional I2C buffering, level translation, and optional enable control to isolate the bus. It usually targets standard (100 kHz) and fast-mode (400 kHz) I2C operation and operates across a broad supply range with low quiescent current. The ADR suffix indicates a RoHS-compliant packaging variant. Common applications include connecting low-voltage sensors to a higher-voltage MCU I2C bus, extending I2C distances, or isolating noisy subsystems on a shared bus. For exact features, channels, pinout, and electrical specs, consult the TI datasheet for TCA4311ADR.

Pinout

- Pin count: 8 pins (8-pin package).
- Function: I2C-bus buffer/level shifter (bidirectional) to connect two I2C buses, typically with an enable control for isolation or translation between voltage domains.

Manufacturer

Manufacturer: Texas Instruments (TI).
Company type: TI is an American multinational semiconductor company that designs and manufactures analog and digital integrated circuits and other electronic components; it’s one of the world’s largest semiconductor producers.

Application

TCA4311ADR is typically used for I2C/SMBus related tasks. Common application areas include:
- I2C/SMBus level shifting and buffering between devices with different supply voltages.
- MCU-to-sensor, EEPROM, and peripheral interfaces in automotive, industrial, and consumer electronics.
- Multi‑voltage embedded systems, data acquisition, and control electronics requiring robust I2C signaling across voltage domains.
- I2C bus segmentation or fan-out in backplanes and distributed sensor networks.
Note: use cases emphasize level shifting, buffering, and protection of I2C signaling in mixed-voltage environments.

Package

8-pin Small-Outline (SOIC, D‑package) package; RoHS compliant, with tape & reel packaging.

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