PCA9515ADP/DG,118

Product Overview

Category: Integrated Circuit (IC)

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

Characteristics: - Bidirectional voltage level translation - Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz - Compatible with both 2.5V and 3.3V systems - Provides buffering for unpowered buses - Low standby current consumption - ESD protection exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101

Package: SOIC (Small Outline Integrated Circuit)

Essence: The PCA9515ADP/DG,118 is an IC that enables voltage level shifting and translating in I2C bus applications, allowing communication between devices operating at different voltage levels.

Packaging/Quantity: The PCA9515ADP/DG,118 is available in a reel packaging format with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.3V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1
• Data Rate: Up to 1 MHz
• Input/Output Compatibility: 2.5V and 3.3V
• Standby Current: 10 µA (typical)

Pin Configuration

The PCA9515ADP/DG,118 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

1. SDA: Serial Data Line
2. GND: Ground
3. VCC: Supply Voltage
4. OE: Output Enable
5. SCL: Serial Clock Line
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection

Functional Features

• Bidirectional voltage level translation between 2.5V and 3.3V systems.
• Provides buffering for unpowered buses, allowing devices to be disconnected without affecting the bus.
• Supports I2C Fast Mode Plus (Fm+) with speeds up to 1 MHz.
• Low standby current consumption helps conserve power in battery-operated applications.
• ESD protection exceeds industry standards, ensuring robustness against electrostatic discharge.

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels. - Supports high-speed data transfer up to 1 MHz. - Provides buffering for unpowered buses, preventing disruption of the entire bus. - Low standby current consumption helps conserve power. - Offers excellent ESD protection.

Disadvantages: - Limited to voltage level translation between 2.5V and 3.3V systems. - Not suitable for applications requiring voltage translation beyond the supported range.

Working Principles

The PCA9515ADP/DG,118 utilizes a bidirectional voltage level shifting technique to enable communication between devices operating at different voltage levels. It incorporates internal circuitry that translates the logic levels of the I2C bus signals, such as SDA and SCL, from one voltage level to another.

When the OE pin is set to a low logic level, the device is enabled, allowing bidirectional voltage level translation. The PCA9515ADP/DG,118 ensures that the voltage levels on the SDA and SCL lines are compatible with both 2.5V and 3.3V systems, facilitating seamless communication between devices.

Detailed Application Field Plans

The PCA9515ADP/DG,118 is commonly used in various applications where voltage level translation is required in I2C bus communication. Some of the typical application fields include:

1. Consumer Electronics: Enables communication between different voltage level devices in smart home systems, audio/video equipment, and wearable devices.
2. Industrial Automation: Facilitates interoperability between industrial sensors, actuators, and control systems operating at different voltage levels.
3. Automotive Electronics: Supports voltage level translation in automotive infotainment systems, advanced driver-assistance systems (ADAS), and vehicle diagnostics.
4. Internet of Things (IoT): Enables connectivity between IoT devices with varying voltage requirements, such as sensors, gateways, and edge computing devices.

Detailed and Complete Alternative Models

• PCA9306DCUR: Bidirectional I2C-bus and SMBus voltage-level translator with automatic direction sensing.
• TXB0108PWR: 8-bit