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TPS2371PW
Product Overview
Category
The TPS2371PW belongs to the category of integrated circuits (ICs) and specifically falls under the Power over Ethernet (PoE) controllers.
Use
This product is primarily used in PoE applications, where it enables the transmission of both power and data over a single Ethernet cable. It provides power sourcing equipment (PSE) functionality, allowing devices such as IP cameras, wireless access points, and VoIP phones to receive power through the Ethernet connection.
Characteristics
- Integrated PoE controller with advanced features
- Supports IEEE 802.3af/at standards for PoE
- Provides power management and protection functions
- Offers flexible power delivery options
- High efficiency and low power dissipation
- Compact package for space-constrained designs
Package and Quantity
The TPS2371PW is available in a small-sized, 20-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 2.5V to 57V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to +85°C
- Power Dissipation: 1.5W (max)
- Control Interface: I2C
Pin Configuration
The TPS2371PW has a total of 20 pins, each serving a specific function. The detailed pin configuration is as follows:
- VDD: Power supply input
- GND: Ground reference
- SDA: I2C serial data input/output
- SCL: I2C serial clock input
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
Functional Features
The TPS2371PW offers several functional features that enhance its performance and usability in PoE applications:
- Integrated detection and classification of powered devices
- Programmable current limit and power management functions
- Overcurrent, overvoltage, and thermal protection mechanisms
- I2C interface for configuration and control
- Power-good indicator for system monitoring
- Sleep mode for low-power operation
Advantages and Disadvantages
Advantages
- Supports both IEEE 802.3af and 802.3at standards
- Flexible power delivery options for various device requirements
- Comprehensive protection features ensure safe operation
- Compact package allows for space-efficient designs
- I2C interface enables easy configuration and control
Disadvantages
- Limited maximum output current (600mA)
- Requires external components for complete PoE implementation
- Relatively higher cost compared to non-PoE solutions
Working Principles
The TPS2371PW operates based on the principles of Power over Ethernet. It integrates the necessary circuitry to detect, classify, and deliver power to connected devices through an Ethernet cable. The device communicates with the powered device to negotiate power requirements and ensures safe and efficient power delivery.
Detailed Application Field Plans
The TPS2371PW finds extensive application in various fields, including:
- IP Surveillance Systems: Enables power supply to IP cameras, eliminating the need for separate power cables.
- Wireless Access Points: Provides power to wireless network devices, simplifying installation and reducing wiring complexity.
- Voice over IP (VoIP) Phones: Allows PoE-enabled phones to receive power and data through a single Ethernet connection.
- Industrial Automation: Supports PoE-powered sensors, actuators, and control devices in industrial environments.
- Building Management Systems: Facilitates power delivery to PoE-enabled devices used in building automation and control systems.
Detailed and Complete Alternative Models
- TPS2372PW: Similar to TPS2371PW but with higher maximum output current (800mA).
- TPS23861: PoE controller with advanced features and support for IEEE 802.3bt standard.
- LTC4267: Integrated PoE controller with extended temperature range and enhanced protection features.
These alternative models offer similar functionality to the TPS2371PW and can be considered based on specific application requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TPS2371PW en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of TPS2371PW in technical solutions:
Q1: What is TPS2371PW? A1: TPS2371PW is a Power over Ethernet (PoE) powered device (PD) controller that integrates both the IEEE 802.3at-compliant PoE interface and a DC-DC converter.
Q2: What is the maximum power output of TPS2371PW? A2: TPS2371PW can deliver up to 25.5W of power to the connected device.
Q3: Can TPS2371PW be used with both 802.3af and 802.3at PoE standards? A3: Yes, TPS2371PW is compatible with both 802.3af and 802.3at PoE standards.
Q4: What is the input voltage range supported by TPS2371PW? A4: TPS2371PW supports an input voltage range of 36V to 57V.
Q5: Can TPS2371PW provide power to multiple devices simultaneously? A5: Yes, TPS2371PW can provide power to multiple devices through its multiple output channels.
Q6: Does TPS2371PW have built-in protection features? A6: Yes, TPS2371PW includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.
Q7: Can TPS2371PW be used in industrial applications? A7: Yes, TPS2371PW is suitable for use in industrial applications due to its wide operating temperature range and robust design.
Q8: Is TPS2371PW easy to integrate into existing systems? A8: Yes, TPS2371PW comes in a small package and has a simple interface, making it easy to integrate into existing systems.
Q9: Can TPS2371PW be used in both indoor and outdoor applications? A9: Yes, TPS2371PW can be used in both indoor and outdoor applications as long as the operating temperature range is within its specified limits.
Q10: Are there any evaluation boards or reference designs available for TPS2371PW? A10: Yes, Texas Instruments provides evaluation boards and reference designs that can help users quickly prototype and implement TPS2371PW in their applications.
Please note that these answers are general and may vary depending on the specific requirements and use cases. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.