TPS254900IRVCRQ1 - English Editing Encyclopedia Entry
Product Overview
Category
The TPS254900IRVCRQ1 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.
Use
This product is primarily used for power management in automotive applications, providing a comprehensive solution for charging and managing USB devices.
Characteristics
- Integrated power switch and USB charging port detection
- Supports USB Battery Charging Specification Revision 1.2 (BC1.2)
- Provides various charging profiles: SDP, CDP, DCP, and ACA-Dock
- Supports up to 1.5A charging current
- Wide input voltage range: 4.5V to 40V
- Overvoltage, overcurrent, and thermal protection features
- Low quiescent current consumption
Package and Quantity
The TPS254900IRVCRQ1 is available in a small VQFN package with 20 pins. It is typically sold in reels or tubes, with a quantity of 2500 units per reel.
Specifications
- Input Voltage Range: 4.5V to 40V
- Output Voltage Range: 4.35V to 5.5V
- Maximum Charging Current: 1.5A
- Operating Temperature Range: -40°C to 125°C
- Package Type: VQFN-20
Detailed Pin Configuration
The TPS254900IRVCRQ1 has a total of 20 pins. Here is the detailed pin configuration:
- EN (Enable)
- GND (Ground)
- VBUS (USB Power Supply)
- D+ (USB Data Line)
- D- (USB Data Line)
- ISET (Charging Current Setting)
- ILIM (Current Limit)
- PGND (Power Ground)
- VREG (Voltage Regulator Output)
- VDD (Supply Voltage)
- VREF (Reference Voltage)
- VSENSE (Current Sensing)
- VBUS_DISCHG (VBUS Discharge Control)
- DCP_DET (Dedicated Charging Port Detection)
- ACA_DET (Accessory Charger Adapter Detection)
- SDP_DET (Standard Downstream Port Detection)
- CDP_DET (Charging Downstream Port Detection)
- VBUS_OVP (Overvoltage Protection)
- THERM (Thermal Shutdown)
- PG (Power Good)
Functional Features
- Integrated power switch for USB charging
- Automatic detection of USB charging port type (SDP, CDP, DCP, or ACA-Dock)
- Overvoltage protection to safeguard connected devices
- Current sensing for accurate charging current control
- Thermal shutdown to prevent overheating
- Power good indication for system status monitoring
Advantages and Disadvantages
Advantages
- Wide input voltage range allows compatibility with various automotive systems
- Supports multiple charging profiles for enhanced flexibility
- Comprehensive protection features ensure safe and reliable charging
- Low quiescent current consumption minimizes power loss
- Compact package size enables space-efficient designs
Disadvantages
- Limited to automotive applications, not suitable for general consumer electronics
- Requires additional external components for complete charging circuit implementation
Working Principles
The TPS254900IRVCRQ1 operates by detecting the type of USB charging port it is connected to and adjusting its charging behavior accordingly. It supports various charging profiles, including Standard Downstream Port (SDP), Charging Downstream Port (CDP), Dedicated Charging Port (DCP), and Accessory Charger Adapter (ACA-Dock). The integrated power switch controls the charging current based on the detected port type and the current sensing feedback. The device also incorporates protection mechanisms such as overvoltage, overcurrent, and thermal shutdown to ensure safe operation.
Detailed Application Field Plans
The TPS254900IRVCRQ1 is specifically designed for automotive applications where USB charging of portable devices is required. It can be used in various automotive systems, including infotainment systems, center consoles, rear-seat entertainment systems, and charging ports in vehicles. Its ability to support different charging profiles makes it suitable for a wide range of USB devices, such as smartphones, tablets, and other portable electronics commonly used in vehicles.
Detailed and Complete Alternative Models
- TPS2540IRWBR: Similar functionality with a different package (WQFN-20)
- TPS2546IRSWR: Supports higher charging currents (up to 3A) with additional features
- TPS2547IRSWR: Enhanced protection features and adjustable charging current limit
- TPS2548IRSWR: Integrated USB switch with advanced charging capabilities
These alternative models offer similar functionalities but may have variations in terms of package type, charging current
Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af TPS254900IRVCRQ1 i tekniske løsninger
Sure! Here are 10 common questions and answers related to the application of TPS254900IRVCRQ1 in technical solutions:
1. What is the TPS254900IRVCRQ1? - The TPS254900IRVCRQ1 is a USB charging port controller with integrated power switch and access detection.
2. What is the purpose of the TPS254900IRVCRQ1? - The TPS254900IRVCRQ1 is designed to provide a reliable and efficient solution for USB charging applications, such as in automotive or industrial systems.
3. What are the key features of the TPS254900IRVCRQ1? - Some key features of the TPS254900IRVCRQ1 include overvoltage protection, overcurrent protection, thermal shutdown, and reverse current blocking.
4. How does the TPS254900IRVCRQ1 ensure overvoltage protection? - The TPS254900IRVCRQ1 has built-in overvoltage protection circuitry that monitors the voltage on the VBUS pin and disconnects the power path if the voltage exceeds a certain threshold.
5. Can the TPS254900IRVCRQ1 handle high currents? - Yes, the TPS254900IRVCRQ1 is capable of handling high currents up to 3A, making it suitable for fast charging applications.
6. Is the TPS254900IRVCRQ1 compatible with different USB standards? - Yes, the TPS254900IRVCRQ1 is compliant with USB Battery Charging Specification 1.2 and supports various charging profiles, including BC1.2, Apple, and Chinese Telecom Standard YD/T 1591-2009.
7. Does the TPS254900IRVCRQ1 have any built-in protection mechanisms? - Yes, the TPS254900IRVCRQ1 incorporates overcurrent protection, thermal shutdown, and reverse current blocking to ensure safe operation.
8. Can the TPS254900IRVCRQ1 be used in automotive applications? - Yes, the TPS254900IRVCRQ1 is specifically designed for automotive systems and can operate within the required temperature range and withstand automotive transients.
9. How does the TPS254900IRVCRQ1 detect device connection? - The TPS254900IRVCRQ1 uses a dedicated detection circuit that monitors the D+ and D- lines to detect device connection and determine the appropriate charging profile.
10. What are the typical applications of the TPS254900IRVCRQ1? - The TPS254900IRVCRQ1 can be used in various applications, including automotive infotainment systems, industrial control panels, and portable electronic devices that require USB charging functionality.
Please note that these questions and answers are general and may vary depending on specific use cases and requirements.