LTC4306CUFD#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Buffer
• Characteristics: Low Voltage I2C and SMBus Bus Buffer with High Noise Margin
• Package: 16-Lead (3mm × 3mm) DFN
• Essence: The LTC4306CUFD#PBF is a bus buffer designed to provide level shifting and buffering for I2C and SMBus systems. It allows multiple devices to communicate on the same bus while isolating them from each other, ensuring reliable data transfer.
• Packaging/Quantity: The LTC4306CUFD#PBF is available in a 16-Lead DFN package and is sold individually.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• I2C/SMBus Compatibility: Compliant with I2C Fast Mode (400kHz) and SMBus (100kHz) specifications
• Quiescent Current: 0.8μA (typical)
• Input Capacitance: 2pF (typical)
• Output Capacitance: 4pF (typical)
• Propagation Delay: 10ns (maximum)

Pin Configuration

The LTC4306CUFD#PBF has a 16-Lead DFN package with the following pin configuration:

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| | | 1 2 3 4 5 6 7 8 9 | |_______________________________________| | | | 10 11 12 13 14 15 16 | |_______________________________________| ```

1. SDA1: I2C/SMBus Data Input/Output for Channel 1
2. SCL1: I2C/SMBus Clock Input for Channel 1
3. EN1: Enable Input for Channel 1
4. GND: Ground
5. VCC: Supply Voltage
6. SDA2: I2C/SMBus Data Input/Output for Channel 2
7. SCL2: I2C/SMBus Clock Input for Channel 2
8. EN2: Enable Input for Channel 2
9. NC: No Connection
10. SDA3: I2C/SMBus Data Input/Output for Channel 3
11. SCL3: I2C/SMBus Clock Input for Channel 3
12. EN3: Enable Input for Channel 3
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Provides level shifting and buffering for I2C and SMBus systems
• Allows multiple devices to communicate on the same bus while isolating them from each other
• Supports I2C Fast Mode (400kHz) and SMBus (100kHz) specifications
• Low quiescent current ensures minimal power consumption
• High noise margin improves system reliability

Advantages and Disadvantages

Advantages: - Enables reliable communication between multiple devices on the same bus - Low power consumption - High noise margin enhances system reliability

Disadvantages: - Limited to I2C and SMBus applications - Requires careful consideration of bus capacitance and pull-up resistor values for optimal performance

Working Principles

The LTC4306CUFD#PBF acts as a bus buffer, allowing multiple devices to communicate on the same I2C or SMBus bus. It provides level shifting and buffering, ensuring reliable data transfer between devices. The device isolates each channel from the others, preventing conflicts and maintaining signal integrity.

Detailed Application Field Plans

The LTC4306CUFD#PBF is commonly used in various applications that require multiple devices to communicate on an I2C or SMBus bus. Some typical application fields include:

1. Industrial Control Systems: Used for communication between sensors, actuators, and control units in industrial automation systems.
2. Consumer Electronics: Enables communication between different components in consumer electronic devices such as smartphones, tablets, and smart home devices.
3. Automotive Electronics: Facilitates communication between various automotive modules, including infotainment systems, body control modules, and engine management systems.
4. Medical Devices: Allows different medical devices to exchange data and commands, enhancing the functionality and interoperability of medical equipment.

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