TPS2816DBVR

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Level Shifters

Characteristics: - Low-Voltage Translator - Bidirectional Voltage Translation - Automatic Direction Sensing - Open-Drain I/O Ports - Small Package Size

Package: SOT-23 (Thin Shrink Small Outline Package)

Essence: The TPS2816DBVR is a voltage level shifter IC designed for bidirectional voltage translation between two different voltage domains. It is commonly used in applications where interfacing between devices operating at different voltage levels is required.

Packaging/Quantity: The TPS2816DBVR is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 0.7 x Vcc
• Low-Level Input Voltage: 0.3 x Vcc
• High-Level Output Voltage: Vcc - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Continuous Output Current: ±50mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS2816DBVR has a total of 5 pins:

1. GND (Ground): Connected to the ground reference of the system.
2. OE (Output Enable): Controls the direction of voltage translation.
3. A (Input/Output A): Bidirectional input/output pin for voltage translation.
4. B (Input/Output B): Bidirectional input/output pin for voltage translation.
5. VCC (Supply Voltage): Connected to the positive supply voltage of the system.

Functional Features

• Bidirectional Voltage Translation: Allows seamless communication between devices operating at different voltage levels.
• Automatic Direction Sensing: The TPS2816DBVR automatically detects the direction of voltage translation based on the input signals.
• Open-Drain I/O Ports: The output pins are designed as open-drain, allowing easy interfacing with different logic families.
• Low-Voltage Translator: Supports voltage translation between low-voltage domains, making it suitable for modern electronic systems.

Advantages and Disadvantages

Advantages: - Compact Size: The TPS2816DBVR comes in a small SOT-23 package, saving board space. - Automatic Direction Sensing: Simplifies system design by eliminating the need for additional control signals. - Wide Operating Voltage Range: Can be used in various applications with different voltage requirements.

Disadvantages: - Limited Continuous Output Current: The TPS2816DBVR has a maximum continuous output current of ±50mA, which may not be sufficient for high-current applications. - Single Supply Voltage: It requires a single supply voltage, limiting its use in systems with multiple power domains.

Working Principles

The TPS2816DBVR operates based on a level-shifting technique using a combination of MOSFETs. When the OE pin is set to a logic high or low level, the IC automatically senses the direction of voltage translation and adjusts the internal circuitry accordingly. This allows bidirectional communication between devices operating at different voltage levels.

Detailed Application Field Plans

The TPS2816DBVR can be used in various applications, including but not limited to: - Communication Systems - Industrial Automation - Consumer Electronics - Automotive Electronics - Medical Devices

In communication systems, the TPS2816DBVR enables voltage translation between different logic families, facilitating seamless data exchange. In industrial automation, it can be used to interface between sensors and microcontrollers operating at different voltage levels. In consumer electronics, it enables compatibility between devices with varying voltage requirements. In automotive electronics, it can be utilized for voltage translation in control modules. In medical devices, it allows communication between different subsystems operating at different voltages.

Detailed and Complete Alternative Models

• SN74LVC1T45: Single-Bit Dual-Supply Bus Transceiver
• TXB0108: 8-Bit Bidirectional Voltage-Level Translator
• PCA9306: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator
• CD4050B: Hex Non-Inverting Buffer/Converter

These alternative models offer similar functionality to the TPS2816DBVR and can be considered as alternatives based on specific application requirements.

In conclusion, the TPS2816DBVR is a versatile voltage level shifter IC that enables bidirectional voltage translation between different voltage domains. With its compact size, automatic direction sensing, and wide operating voltage range, it finds applications in various fields such as communication systems, industrial automation, consumer electronics, automotive electronics, and medical devices. While it has limitations in terms of continuous output current and single supply voltage requirement, there are alternative models available to suit specific application needs.