Linear Technology/Analog Devices
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LTC4316IDD#PBF
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LTC4316IDD#PBF

Product Overview

Category

LTC4316IDD#PBF belongs to the category of I2C/SMBus multiplexers.

Use

This product is used for bus buffering and voltage level translation in I2C/SMBus systems.

Characteristics

  • Supports I2C and SMBus protocols
  • Provides bidirectional buffering and level shifting
  • Allows multiple devices to share a common bus
  • Compatible with 1.8V, 2.5V, 3.3V, and 5V logic levels
  • Low quiescent current consumption
  • High noise immunity
  • Fast switching times

Package

LTC4316IDD#PBF is available in a 10-lead DFN package.

Essence

The essence of LTC4316IDD#PBF lies in its ability to enable multiple devices with different voltage levels to communicate on a single I2C/SMBus bus.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specified quantity of units.

Specifications

  • Operating Voltage: 1.6V to 5.5V
  • Maximum Bus Voltage: 6V
  • Quiescent Current: 0.9μA (typical)
  • Rise/Fall Time: 4ns (typical)
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

  1. SDA1: Input/output for primary I2C data line
  2. SCL1: Input for primary I2C clock line
  3. EN: Enable pin for controlling the device operation
  4. ADR: Address selection pin for configuring the device address
  5. SDA2: Input/output for secondary I2C data line
  6. SCL2: Input for secondary I2C clock line
  7. GND: Ground reference
  8. VCC: Power supply input
  9. NC: No connection
  10. NC: No connection

Functional Features

  • Bidirectional buffering: Allows multiple devices to share a common bus without interfering with each other's communication.
  • Voltage level translation: Enables communication between devices operating at different logic voltage levels.
  • Automatic bus disconnect: Isolates the bus when no active devices are present, reducing power consumption and preventing bus contention.
  • Stuck bus recovery: Automatically clears stuck buses by resetting the I2C/SMBus lines.

Advantages and Disadvantages

Advantages

  • Simplifies design by eliminating the need for separate I2C/SMBus buses for devices with different voltage levels.
  • Reduces component count and board space requirements.
  • Provides robust protection against bus contention and noise.
  • Low quiescent current consumption prolongs battery life in portable applications.

Disadvantages

  • Limited to I2C/SMBus applications only.
  • May introduce additional propagation delay due to level shifting circuitry.

Working Principles

LTC4316IDD#PBF operates by monitoring the primary I2C bus for activity. When an active device is detected, it buffers and translates the signals to the secondary I2C bus, allowing communication with devices operating at a different voltage level. The device automatically disconnects the bus when no active devices are present, minimizing power consumption and preventing bus conflicts.

Detailed Application Field Plans

LTC4316IDD#PBF finds applications in various fields, including: 1. Industrial automation 2. Consumer electronics 3. Automotive systems 4. Medical devices 5. Telecommunications equipment

In industrial automation, it enables communication between sensors, actuators, and control units operating at different voltage levels. In consumer electronics, it facilitates interconnection between devices such as smartphones, tablets, and peripherals. In automotive systems, it allows communication between different modules within a vehicle. In medical devices, it enables integration of various sensors and monitoring equipment. In telecommunications equipment, it aids in connecting network components with varying voltage requirements.

Detailed and Complete Alternative Models

  1. PCA9548APW: I2C bus multiplexer with eight channels
  2. TCA9548A: I2C/SMBus bus switch with eight channels
  3. TS5A23157: Dual-channel bidirectional I2C/SMBus switch
  4. MAX7360: Configurable I2C/SMBus switch with GPIOs
  5. ADG715: I2C-controlled quad SPST switch

These alternative models offer similar functionality to LTC4316IDD#PBF and can be considered based on specific application requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de LTC4316IDD#PBF dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of LTC4316IDD#PBF in technical solutions:

  1. Q: What is LTC4316IDD#PBF? A: LTC4316IDD#PBF is a hot-swappable I2C bus buffer with built-in capacitive isolation, designed to improve system reliability and robustness.

  2. Q: What is the purpose of LTC4316IDD#PBF? A: The LTC4316IDD#PBF is used to extend the I2C bus by buffering the signals and providing capacitive isolation, allowing for reliable communication between devices.

  3. Q: How does LTC4316IDD#PBF provide capacitive isolation? A: LTC4316IDD#PBF uses an integrated capacitive isolation technology that provides galvanic isolation between the upstream and downstream I2C buses.

  4. Q: Can LTC4316IDD#PBF be used in both industrial and consumer applications? A: Yes, LTC4316IDD#PBF is suitable for use in a wide range of applications, including both industrial and consumer electronics.

  5. Q: What is the maximum operating voltage supported by LTC4316IDD#PBF? A: LTC4316IDD#PBF supports a maximum operating voltage of 5.5V.

  6. Q: Does LTC4316IDD#PBF support high-speed mode (Hs-mode) I2C communication? A: Yes, LTC4316IDD#PBF supports Hs-mode I2C communication up to 400kHz.

  7. Q: Can LTC4316IDD#PBF be used as a level shifter? A: Yes, LTC4316IDD#PBF can act as a level shifter, allowing devices operating at different voltage levels to communicate on the I2C bus.

  8. Q: Does LTC4316IDD#PBF have any built-in protection features? A: Yes, LTC4316IDD#PBF includes built-in protection features such as fault detection and thermal shutdown to ensure safe operation.

  9. Q: Can multiple LTC4316IDD#PBF devices be cascaded together? A: Yes, multiple LTC4316IDD#PBF devices can be cascaded together to extend the I2C bus and provide isolation between different sections of the system.

  10. Q: Are there any evaluation boards or reference designs available for LTC4316IDD#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs that can help users quickly prototype and implement LTC4316IDD#PBF in their applications.

Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the LTC4316IDD#PBF datasheet and consult with the manufacturer for detailed information.