TPS2379DDAR

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TPS2379DDAR

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IC POE CNTRL 1 CHANNEL 8SOPWR

  • Nhà sản xuấtTexas Dụng cụ

  • Ông. Phần #TPS2379DDAR

  • Gói HSOIC (DDA)-8

  • Có sẵn5075

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Controller (PD)
NumberofChannels 1
Power-Max 25 W
InternalSwitch(s) Yes
AuxiliarySense No
Standards IEEE 802.3
Voltage-Supply 0V ~ 57V
Current-Supply 850mA
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-PowerSOIC (0.154, 3.90mm Width)

Tổng quan

Description

The TPS2379DDAR is a highly integrated Power over Ethernet (PoE) controller designed by Texas Instruments. It is primarily utilized in applications that require the delivery of power and data over a single Ethernet cable, making it ideal for devices like IP cameras, VoIP phones, and wireless access points. The chip supports IEEE 802.3at Type 1 (PoE) and Type 2 (PoE+) standards, allowing for power delivery up to 25.5 watts.
Key features of the TPS2379DDAR include a high-efficiency DC-DC converter, an integrated switching regulator, and support for both isolated and non-isolated applications. It also offers protection features such as thermal shutdown, overload protection, and under-voltage lockout, ensuring robust operation.
The device comes in a space-efficient package, suitable for compact designs, and supports flexible DC-DC topologies, including flyback, forward, and active clamp forward configurations. With its high integration, the TPS2379DDAR simplifies the design process and reduces the need for additional components, facilitating cost-effective and efficient PoE solutions.

Equivalent

The TPS2379DDAR is a PoE (Power over Ethernet) interface and DC-DC controller. Equivalent products include:
1. Linear Technology LTC4267: Provides similar PoE interface and DC-DC conversion functionalities.
2. Microchip PD70224: Offers comparable PoE interface capabilities with integrated DC-DC features.
3. Silicon Labs Si3402-B: Another PoE controller with integrated features suitable for similar applications.
Always verify pin compatibility and electrical specifications before substituting.

Features

The TPS2379DDAR is a Power-over-Ethernet (PoE) interface and DC/DC controller by Texas Instruments. It is designed for applications requiring power extraction and conversion from Ethernet cables. Key features include:
1. PoE Interface: Supports IEEE 802.3at Type 2, enabling power extraction up to 25.5W.
2. Integrated High-Efficiency DC/DC Controller: Capable of supporting various converter topologies like isolated flyback or forward converters.
3. Protection Features: Includes thermal shutdown, current limiting, and under-voltage lockout for enhanced reliability.
4. Integrated FET: For improved efficiency and reduced external components.
5. Programmable Features: Offers flexibility with programmable soft-start, frequency, and synchronous rectification.
6. Low Standby Power: Designed to minimize power consumption in standby mode.
7. Auxiliary Power Support: Allows seamless integration with auxiliary power sources.
8. Compact Package: Available in a space-saving 16-pin SOIC package.
These features make the TPS2379DDAR suitable for powering devices like IP phones, wireless access points, and network cameras via Ethernet cables.

Pinout

The TPS2379DDAR is a Power over Ethernet (PoE) controller designed by Texas Instruments for powered devices (PD) in PoE applications. It typically comes in a 20-pin HTSSOP (High Thermal Performance Thin Shrink Small Outline Package) package. Here's a brief overview of its pin functions:
1. VDD: Powers the internal circuitry.
2. VSS: Ground reference.
3. RTN: Return path for the PD.
4. VOUT: Power output to the PD circuitry.
5. DEN: Detection input.
6. CLS: Classification resistor connection.
7. APD: Advanced Power Detection.
8. RDET: Detection resistor connection.
9. T2P: Indicates power status from PSE.
10. NC: No connection.
11. RST: Reset functionality.
12. CT: Timing capacitor for sequencing.
13. SD/THR: Shutdown or thermal regulation.
14. PGA: Power Good Alarm.
15. PGD: Power Good indication.
16. NC: No connection.
17. NC: No connection.
18. NC: No connection.
19. NC: No connection.
20. NC: No connection.
These pins collectively support the PoE functionality, controlling power delivery, detection, classification, and maintaining power integrity for powered devices. Always refer to the datasheet for detailed specifications and electrical characteristics.

Manufacturer

The TPS2379DDAR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is known for its innovation in the semiconductor industry, producing a wide range of products that are used in various applications such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is headquartered in Dallas, Texas, and is a leader in analog and embedded processing products. The company focuses on developing technologies that drive the electronics industry forward and has a reputation for reliability and quality in its products.

Application

The TPS2379DDAR is primarily used in Power over Ethernet (PoE) applications. It is designed to facilitate the delivery of both power and data over standard Ethernet cables. Key application areas include VoIP phones, wireless access points, IP cameras, and other PoE-enabled network devices. It helps in simplifying power supply design by providing an integrated solution for PoE powered devices, supporting IEEE 802.3at Type 2 specifications for higher power delivery. This makes the TPS2379DDAR ideal for applications requiring efficient power management and data communication over a single cable infrastructure.

Package

The TPS2379DDAR is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package, designated as "DDA." This package is commonly used for surface-mount technology and is suitable for applications requiring high power density and efficiency, such as PoE (Power over Ethernet) applications.

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