PCA9515ADGKRG4

Product Overview

Category: Integrated Circuit (IC)

Use: Level shifting and translating between different voltage levels in I2C bus applications.

Characteristics: - Bidirectional voltage-level translator - Supports I2C Fast Mode Plus (Fm+) with a maximum frequency of 1 MHz - Compatible with both 2.5V and 3.3V supply voltages - Provides bidirectional buffering for SDA and SCL lines - Allows voltage translation from 1.8V to 5V

Package: VSSOP-8

Essence: The PCA9515ADGKRG4 is an IC that enables communication between devices operating at different voltage levels within an I2C bus system.

Packaging/Quantity: The PCA9515ADGKRG4 is available in a VSSOP-8 package. It is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 1 MHz
• Rise/Fall Time: 20 ns (maximum)
• Quiescent Current: 2 µA (maximum)

Pin Configuration

The PCA9515ADGKRG4 has the following pin configuration:

___________ SDA | 1 8 | VCC SCL | 2 7 | OE GND | 3 6 | A1 GND | 4 5 | A0 |__________|

Functional Features

• Bidirectional voltage-level translation between two I2C buses operating at different voltage levels.
• Automatic direction sensing and control of the I2C bus signals.
• Provides bidirectional buffering for the SDA and SCL lines, allowing multiple devices to be connected to the I2C bus.
• Supports hot insertion and removal of devices without disrupting the I2C bus communication.

Advantages

• Enables seamless communication between devices operating at different voltage levels within an I2C bus system.
• Supports high-speed data transfer with a maximum frequency of 1 MHz.
• Compatible with both 2.5V and 3.3V supply voltages, providing flexibility in system design.
• Low quiescent current consumption helps conserve power in battery-operated applications.

Disadvantages

• Limited to voltage translation between 1.8V and 5V, which may not cover all possible voltage level combinations.
• The VSSOP-8 package may require careful handling during assembly due to its small size.

Working Principles

The PCA9515ADGKRG4 utilizes a bidirectional voltage-level shifting technique to enable communication between devices operating at different voltage levels within an I2C bus system. It automatically senses the direction of the I2C bus signals and controls the voltage translation accordingly. The device provides bidirectional buffering for the SDA and SCL lines, ensuring proper signal integrity and preventing bus contention.

Detailed Application Field Plans

The PCA9515ADGKRG4 is commonly used in various applications where voltage-level translation is required within an I2C bus system. Some typical application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and audio/video equipment to facilitate communication between components operating at different voltage levels.

2. Industrial Automation: Employed in industrial control systems, PLCs (Programmable Logic Controllers), and sensor networks to enable interoperability between devices with varying voltage requirements.

3. Automotive Electronics: Integrated into automotive infotainment systems, instrument clusters, and body control modules to support communication between different voltage domains within the vehicle.

4. Internet of Things (IoT): Utilized in IoT devices, such as smart home automation systems and wearable devices, to enable seamless connectivity between components operating at different voltage levels.

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. SN74LVC1T45: Single-bit dual-supply bus transceiver with configurable voltage-level translation.

These alternative models offer similar functionality to the PCA9515ADGKRG4 and can be considered as alternatives based on specific application requirements.

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