TPS23785BPWP

Product Overview

Category

The TPS23785BPWP belongs to the category of integrated circuits (ICs) and specifically falls under the Power over Ethernet (PoE) controllers.

Use

This IC is primarily used in PoE applications, where it enables the delivery of 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 be powered through the Ethernet connection.

Characteristics

• Supports IEEE 802.3at standard for high-power PoE applications.
• Provides advanced power management features.
• Offers various protection mechanisms, including overcurrent, overvoltage, and thermal shutdown.
• Incorporates a flexible power interface with programmable current limit and voltage regulation.
• Features an integrated DC-DC controller for efficient power conversion.

Package

The TPS23785BPWP comes in a small outline package (SOP) with a thermal pad, which enhances heat dissipation and improves overall performance.

Essence

The essence of the TPS23785BPWP lies in its ability to simplify the implementation of PoE systems by integrating key functions required for power delivery and management.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with each reel containing 250 units.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.5V to 57V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to 125°C
• Package Type: SOP-20

Pin Configuration

The TPS23785BPWP has a total of 20 pins. The pin configuration is as follows:

1. VDD
2. VDD
3. VDD
4. VDD
5. VDD
6. GND
7. GND
8. GND
9. GND
10. GND
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC

Functional Features

• Integrated PSE controller for IEEE 802.3at compliance.
• Programmable current limit and voltage regulation.
• Advanced power management features, including power prioritization and classification.
• Comprehensive protection mechanisms to ensure safe operation.

Advantages and Disadvantages

Advantages

• Simplifies PoE system implementation.
• Supports high-power PoE applications.
• Offers advanced power management capabilities.
• Provides comprehensive protection features.

Disadvantages

• Limited output current compared to some alternative models.
• Relatively higher cost compared to non-integrated solutions.

Working Principles

The TPS23785BPWP operates by receiving power from the Ethernet cable and converting it into regulated DC power suitable for powering connected devices. It incorporates a DC-DC controller that efficiently converts the input voltage to the desired output voltage. The IC also includes various control and protection circuits to ensure safe and reliable power delivery.

Detailed Application Field Plans

The TPS23785BPWP finds extensive application in the following fields:

1. IP Surveillance Systems: Enables the deployment of IP cameras without the need for separate power cables, simplifying installation and reducing costs.
2. Wireless Access Points: Powers wireless networking equipment, allowing for flexible placement without proximity to power outlets.
3. Voice over IP (VoIP) Phones: Provides power to VoIP phones, eliminating the need for separate power adapters and enabling easy integration with existing Ethernet infrastructure.

Detailed and Complete Alternative Models

1. TPS23786BPWP: Similar to the TPS23785BPWP but offers higher output current capability.
2. TPS23861PAP: Provides PSE functionality with additional features such as digital diagnostics and advanced power management.

In conclusion, the TPS23785BPWP is a highly integrated PoE controller IC that simplifies the implementation of PoE systems. It offers advanced power management features, comprehensive protection mechanisms, and finds application in various fields such as IP surveillance, wireless networking, and VoIP.