TPS2543RTER

Product Overview

Category

The TPS2543RTER belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for managing power in electronic devices, particularly in applications where USB charging is required.

Characteristics

• Integrated power switch and USB charging port controller
• Supports USB Battery Charging Specification (BC1.2)
• Provides various charging modes: SDP, CDP, DCP
• Overcurrent protection and thermal shutdown features
• Wide input voltage range: 4.5V to 28V
• Adjustable output current limit
• Small form factor package

Package and Quantity

The TPS2543RTER is available in a small, surface-mount package known as QFN (Quad Flat No-leads). It comes in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 4.35V to 5.5V
• Output Current Limit: Adjustable up to 2.5A
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFN-16

Pin Configuration

The TPS2543RTER has a total of 16 pins arranged as follows:

Pin 1: VBUS Pin 2: GND Pin 3: EN Pin 4: D+ Pin 5: D- Pin 6: NC Pin 7: ILIM Pin 8: PGND Pin 9: VOUT Pin 10: VDD Pin 11: VREF Pin 12: NC Pin 13: NC Pin 14: NC Pin 15: NC Pin 16: NC

Functional Features

1. Integrated Power Switch: The TPS2543RTER combines a power switch and USB charging port controller in a single IC, simplifying the design of charging circuits.

2. USB Battery Charging Specification (BC1.2) Support: This product complies with the BC1.2 standard, allowing it to communicate with connected devices and negotiate optimal charging parameters.

3. Multiple Charging Modes: The TPS2543RTER supports three charging modes - Standard Downstream Port (SDP), Charging Downstream Port (CDP), and Dedicated Charging Port (DCP). This flexibility enables compatibility with various USB devices.

4. Overcurrent Protection and Thermal Shutdown: The IC incorporates overcurrent protection to prevent damage to the circuitry and thermal shutdown to safeguard against excessive heat.

5. Adjustable Output Current Limit: The output current limit can be adjusted to suit specific charging requirements, providing flexibility for different applications.

Advantages and Disadvantages

Advantages

• Integration of power switch and controller reduces component count and simplifies circuit design.
• Compliance with USB BC1.2 specification ensures compatibility with a wide range of devices.
• Multiple charging modes offer versatility for different charging scenarios.
• Adjustable output current limit allows customization based on application needs.

Disadvantages

• Limited to USB charging applications, may not be suitable for other power management requirements.
• Availability in only one package type may restrict its use in certain form factors.

Working Principles

The TPS2543RTER operates by monitoring the voltage and current levels on the USB port. It communicates with the connected device to determine the appropriate charging mode and negotiates the charging parameters accordingly. The integrated power switch controls the power flow to the connected device, while the overcurrent protection and thermal shutdown features ensure safe operation.

Detailed Application Field Plans

The TPS2543RTER is well-suited for a wide range of applications that require USB charging capabilities. Some potential application fields include:

1. Mobile Devices: Smartphones, tablets, and portable media players can benefit from the TPS2543RTER's ability to provide efficient and safe charging.

2. Wearable Electronics: Fitness trackers, smartwatches, and other wearable devices often rely on USB charging. The TPS2543RTER can be integrated into these devices to manage the charging process effectively.

3. Automotive: USB charging ports in vehicles can utilize the TPS2543RTER to ensure reliable and fast charging for passengers' electronic devices.

4. Industrial Equipment: Various industrial equipment, such as handheld scanners or portable measurement devices, can incorporate the TPS2543RTER for convenient USB charging functionality.

Detailed and Complete Alternative Models

1. TPS2540RTER: Similar to the TPS2543RTER, this IC offers USB charging port control but without an integrated power switch.

2. TPS2514RTER: This IC provides USB charging port control with an integrated power switch and additional features like load detection and