TPS2511DGNR

Product Overview

Category

The TPS2511DGNR belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used for USB charging port identification and protection in various electronic devices, such as smartphones, tablets, laptops, and other portable devices.

Characteristics

• USB charging port identification: The TPS2511DGNR incorporates a detection mechanism that identifies the connected device and adjusts the charging current accordingly.
• Overcurrent protection: It provides protection against excessive current flow, preventing damage to both the charging port and the connected device.
• Thermal shutdown: The IC includes a thermal shutdown feature that safeguards against overheating, ensuring safe operation.
• Fast charging support: The TPS2511DGNR supports fast charging protocols, enabling efficient charging of compatible devices.
• Low power consumption: This IC has low quiescent current consumption, making it suitable for battery-powered devices.
• Compact package: The TPS2511DGNR is available in a small form factor package, allowing for easy integration into space-constrained designs.

Package and Quantity

The TPS2511DGNR is packaged in an 8-pin MSOP (Mini Small Outline Package). It is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 4.75V to 5.25V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)
• Maximum Charging Current: 2.4A
• Overcurrent Protection Threshold: Adjustable (up to 3.6A)

Pin Configuration

The TPS2511DGNR features the following pin configuration:

1. VBUS: Power supply input for the USB charging port.
2. DCP: Detection Control Pin - Used to enable/disable the detection mechanism.
3. D-: USB data line (negative).
4. D+: USB data line (positive).
5. GND: Ground reference pin.
6. ILIM: Overcurrent protection threshold adjustment pin.
7. EN: Enable pin - Used to enable/disable the IC's functionality.
8. VOUT: Output voltage pin.

Functional Features

1. USB Charging Port Identification: The TPS2511DGNR utilizes a proprietary algorithm to identify the connected device and determine its charging capabilities.
2. Automatic Current Adjustment: Based on the device identification, the IC adjusts the charging current to ensure optimal charging speed without exceeding the device's limits.
3. Overcurrent Protection: The IC monitors the charging current and provides protection by limiting the current flow when it exceeds the set threshold.
4. Thermal Shutdown: In case of excessive temperature rise, the thermal shutdown feature activates, preventing damage to the IC and the connected device.
5. Fast Charging Support: The TPS2511DGNR supports various fast charging protocols, such as Qualcomm Quick Charge, enabling rapid charging of compatible devices.
6. Low Power Consumption: With its low quiescent current consumption, the IC minimizes power loss and extends battery life in portable devices.

Advantages and Disadvantages

Advantages

• Accurate device identification for optimized charging.
• Flexible overcurrent protection threshold adjustment.
• Wide input voltage range allows compatibility with different power sources.
• Compact package enables easy integration into space-constrained designs.
• Supports popular fast charging protocols for enhanced charging speed.

Disadvantages

• Limited to USB charging port applications.
• Requires additional external components for complete charging circuit implementation.
• Not suitable for high-power charging applications above 2.4A.

Working Principles

The TPS2511DGNR operates by continuously monitoring the USB charging port's voltage and current. It uses a proprietary algorithm to identify the connected device based on its unique charging signature. Once identified, the IC adjusts the charging current to match the device's requirements, ensuring efficient and safe charging.

In case of an overcurrent condition, where the charging current exceeds the set threshold, the IC limits the current flow to protect both the charging port and the connected device. Additionally, the thermal shutdown feature activates if the IC's temperature rises above the specified limit, preventing any potential damage due to overheating.

Application Field Plans

The TPS2511DGNR finds extensive application in various electronic devices that incorporate USB charging ports. Some notable application fields include:

1. Smartphones and Tablets: The IC ensures optimized charging for smartphones and tablets, supporting fast charging protocols for quick battery replenishment.
2. Laptops and Ultrabooks: By accurately identifying the connected device, the TPS2511DGNR enables efficient charging of laptops and ultrabooks through their USB Type-C or USB Power Delivery ports.
3. Portable Gaming Consoles