TPS2511DGN

Product Overview

Category

The TPS2511DGN belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

The TPS2511DGN is primarily used for USB charging applications. It is designed to provide a complete solution for charging portable devices such as smartphones, tablets, and other USB-powered devices.

Characteristics

• The TPS2511DGN integrates various features required for USB charging, including current limiting, voltage regulation, and detection of device connection.
• It supports both USB Battery Charging Specification 1.2 and Chinese Telecommunication Industry Standard YD/T 1591-2009.
• The device operates with a wide input voltage range, making it suitable for various power sources.
• It offers high efficiency and low power dissipation, ensuring optimal charging performance.
• The TPS2511DGN includes built-in protection features such as overvoltage protection, thermal shutdown, and short-circuit protection.

Package and Quantity

The TPS2511DGN is available in a 8-pin MSOP (DGK) package. It is typically sold in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage: 5V ± 5%
• Maximum Output Current: 2.1A
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)

Pin Configuration

The TPS2511DGN has the following pin configuration:

1. VBUS: USB Bus Voltage Input
2. DCP: Dedicated Charging Port Detection Input
3. D+: USB Data Line
4. D-: USB Data Line
5. GND: Ground
6. ILIM: Current Limit Setting Input
7. VOUT: Regulated Output Voltage
8. VIN: Power Supply Input

Functional Features

1. USB Charging Detection: The TPS2511DGN can detect the presence of a USB device and differentiate between standard USB data communication and charging modes.
2. Current Limiting: It provides adjustable current limiting to protect the charger and the connected device from excessive current.
3. Voltage Regulation: The device ensures a stable output voltage of 5V ± 5% for efficient charging.
4. Overvoltage Protection: It includes built-in protection against overvoltage conditions, safeguarding the connected device.
5. Thermal Shutdown: The TPS2511DGN incorporates thermal shutdown functionality to prevent overheating during operation.
6. Short-Circuit Protection: It offers short-circuit protection to prevent damage to the charger or the connected device in case of a fault.

Advantages and Disadvantages

Advantages

• Comprehensive solution for USB charging applications
• Supports multiple charging standards
• Wide input voltage range for versatile power sources
• High efficiency and low power dissipation
• Built-in protection features for enhanced safety

Disadvantages

• Limited maximum output current (2.1A)
• Requires external components for complete charging circuit implementation

Working Principles

The TPS2511DGN operates by detecting the connection of a USB device through the DCP pin. It then determines the charging mode based on the device's requirements. The device regulates the output voltage to 5V ± 5% and limits the current to the desired level using the ILIM pin. It continuously monitors the charging process and provides necessary protection against overvoltage, thermal issues, and short circuits.

Application Field Plans

The TPS2511DGN is widely used in various USB charging applications, including: - Mobile phones - Tablets - Portable media players - Digital cameras - Bluetooth headsets - GPS devices - Other USB-powered devices

Alternative Models

Some alternative models that offer similar functionality to the TPS2511DGN include: - TPS2513: Offers higher maximum output current (3A) - TPS2514: Provides additional features such as I2C interface for advanced control and monitoring - TPS2515: Supports USB Type-C Power Delivery (PD) specification

These alternative models can be considered based on specific application requirements and desired features.

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