TPS2546RTER

Product Overview

Category

The TPS2546RTER 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
• Overvoltage protection
• Overcurrent protection
• Thermal shutdown protection

Package

The TPS2546RTER is available in a small package known as a WQFN (Wafer Level Chip Scale Package). This package offers a compact size and good thermal performance.

Essence

The essence of the TPS2546RTER lies in its ability to efficiently manage power and provide safe and reliable charging capabilities for USB devices.

Packaging/Quantity

The TPS2546RTER is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's packaging specifications.

Specifications

• Input voltage range: 4.5V to 5.5V
• Output voltage range: 4.35V to 5.5V
• Operating temperature range: -40°C to +85°C
• Maximum output current: 2.4A
• Quiescent current: 100µA (typical)

Detailed Pin Configuration

The TPS2546RTER has a total of 20 pins. Here is a detailed pin configuration:

1. VBUS: USB bus voltage input
2. GND: Ground reference
3. D+/-: USB data lines
4. EN: Enable pin
5. PGND: Power ground
6. VBUS_IN: Input voltage for power switch
7. DCP_DET: Dedicated Charging Port detection
8. SDP_DET: Standard Downstream Port detection
9. CDP_DET: Charging Downstream Port detection
10. ISET: Current limit setting
11. ILIM: Current limit status
12. THERM: Thermal shutdown output
13. STAT1: Status indicator 1
14. STAT2: Status indicator 2
15. STAT3: Status indicator 3
16. STAT4: Status indicator 4
17. STAT5: Status indicator 5
18. STAT6: Status indicator 6
19. STAT7: Status indicator 7
20. STAT8: Status indicator 8

Functional Features

• Integrated power switch for USB charging
• Automatic detection of charging port type (SDP, CDP, DCP)
• Overvoltage protection to safeguard connected devices
• Overcurrent protection to prevent damage to the IC and connected devices
• Thermal shutdown protection to avoid overheating

Advantages and Disadvantages

Advantages

• Compact size and good thermal performance due to WQFN package
• Supports various charging modes, making it versatile for different applications
• Provides reliable overvoltage, overcurrent, and thermal protection
• Easy integration into USB charging circuits

Disadvantages

• Limited maximum output current compared to some other power management ICs
• Requires external components for complete USB charging circuit implementation

Working Principles

The TPS2546RTER operates by detecting the type of downstream port (SDP, CDP, or DCP) and adjusting the charging mode accordingly. It regulates the output voltage and current to provide safe and efficient charging for USB devices. The integrated power switch controls the flow of current to the connected device, while the various protection features ensure the safety of both the IC and the connected devices.

Detailed Application Field Plans

The TPS2546RTER is widely used in various applications that require USB charging capabilities. Some common application fields include: - Mobile phones - Tablets - Portable media players - Bluetooth headsets - Digital cameras - Portable gaming devices

Detailed and Complete Alternative Models

1. TPS2540RTER: Similar functionality with a lower maximum output current of 1.5A.
2. TPS2547RTER: Higher maximum output current of 3A, suitable for power-hungry devices.
3. TPS2514RTER: Provides additional features like load detection and dynamic voltage scaling.

These alternative models offer different specifications and features to cater to specific requirements in power management and USB charging applications.

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