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規格
| 屬性 | 價值 |
| Brand | Analog Devices |
| Shipping Restrictions | Mouser does not presently sell this product in your region. |
| Mounting Type | SMD/SMT |
| Package / Case | SSOP-36 |
| Product Type | Power Switch ICs - POE / LAN |
| Series | LTC4259A-1 |
| Subcategory | Switch ICs |
| Standard | 802.3af |
概述
Description
The LTC4259ACGW-1 is a Power over Ethernet (PoE) controller designed by Analog Devices for IEEE 802.3af and IEEE 802.3at standards. It enables the safe delivery of power over Ethernet cables to powered devices (PDs) such as IP cameras, VoIP phones, and wireless access points. Key features include:
1. Power Detection: The LTC4259ACGW-1 supports both alternative A and B wiring methods, allowing compatibility with various PoE systems.
2. Integrated Protection: It includes overvoltage and overcurrent protection to safeguard connected devices.
3. Low Power Consumption: The device operates efficiently, maximizing power delivery while minimizing losses.
4. Small Package Size: Available in a compact 16-pin TSSOP package, it is suitable for space-constrained applications.
5. Easy Integration: The LTC4259ACGW-1 simplifies circuit design for PoE applications, making it ideal for manufacturers looking to implement PoE solutions seamlessly.
Overall, it is a reliable choice for developers aiming to incorporate PoE functionality in their products.
1. Power Detection: The LTC4259ACGW-1 supports both alternative A and B wiring methods, allowing compatibility with various PoE systems.
2. Integrated Protection: It includes overvoltage and overcurrent protection to safeguard connected devices.
3. Low Power Consumption: The device operates efficiently, maximizing power delivery while minimizing losses.
4. Small Package Size: Available in a compact 16-pin TSSOP package, it is suitable for space-constrained applications.
5. Easy Integration: The LTC4259ACGW-1 simplifies circuit design for PoE applications, making it ideal for manufacturers looking to implement PoE solutions seamlessly.
Overall, it is a reliable choice for developers aiming to incorporate PoE functionality in their products.
Equivalent
Equivalent products to the LTC4259ACGW-1 include the following:
1. TPS23861 (Texas Instruments)
2. PD-ICs from the Microchip MCP8024 series
3. ISL8021 (Intersil)
4. MAX5969 (Maxim Integrated)
Always verify compatibility and specifications before substitution, as variations may exist in features and performance.
1. TPS23861 (Texas Instruments)
2. PD-ICs from the Microchip MCP8024 series
3. ISL8021 (Intersil)
4. MAX5969 (Maxim Integrated)
Always verify compatibility and specifications before substitution, as variations may exist in features and performance.
Features
The LTC4259ACGW-1 is a Power over Ethernet (PoE) powered device (PD) controller designed for efficient power management in network applications. Key features include:
1. Compliance: Supports IEEE 802.3af/at standards for PoE, enabling compatibility with PoE power sourcing equipment.
2. Power Management: Integrates a high-performance DC/DC converter for efficient power delivery.
3. Power Detection: Automatic detection of PSE and power classification for optimized power allocation.
4. Load Sharing: Supports dual power input for redundant power supply options.
5. Overcurrent Protection: Built-in current limiting and thermal protection to safeguard the device.
6. Flexible Output Voltage: Configurable output voltage options to suit different applications.
7. Easy Integration: Small package size (QFN) allows for compact designs and ease of integration into various systems.
These features make the LTC4259ACGW-1 ideal for applications such as IP cameras, VoIP phones, and wireless access points.
1. Compliance: Supports IEEE 802.3af/at standards for PoE, enabling compatibility with PoE power sourcing equipment.
2. Power Management: Integrates a high-performance DC/DC converter for efficient power delivery.
3. Power Detection: Automatic detection of PSE and power classification for optimized power allocation.
4. Load Sharing: Supports dual power input for redundant power supply options.
5. Overcurrent Protection: Built-in current limiting and thermal protection to safeguard the device.
6. Flexible Output Voltage: Configurable output voltage options to suit different applications.
7. Easy Integration: Small package size (QFN) allows for compact designs and ease of integration into various systems.
These features make the LTC4259ACGW-1 ideal for applications such as IP cameras, VoIP phones, and wireless access points.
Pinout
The LTC4259ACGW-1 is a Power over Ethernet (PoE) controller with a pin count of 16. It is designed to support IEEE 802.3af and IEEE 802.3at (PoE) standards.
Key functions of the LTC4259ACGW-1 include:
1. Detection: It can detect powered devices (PDs) to ensure safe operation.
2. Classification: It classifies the power requirements of PDs to allocate appropriate power levels.
3. Power Management: It manages and controls power delivery to connected devices.
4. Protection Features: Includes overvoltage and overcurrent protection to safeguard both the controller and connected devices.
5. Integrated MOSFET: Contains a high-voltage power MOSFET for efficient power transfer.
6. Switching Control: Provides control for switching the power path, ensuring reliable operation.
The LTC4259ACGW-1 is suitable for applications requiring reliable and efficient PoE solutions.
Key functions of the LTC4259ACGW-1 include:
1. Detection: It can detect powered devices (PDs) to ensure safe operation.
2. Classification: It classifies the power requirements of PDs to allocate appropriate power levels.
3. Power Management: It manages and controls power delivery to connected devices.
4. Protection Features: Includes overvoltage and overcurrent protection to safeguard both the controller and connected devices.
5. Integrated MOSFET: Contains a high-voltage power MOSFET for efficient power transfer.
6. Switching Control: Provides control for switching the power path, ensuring reliable operation.
The LTC4259ACGW-1 is suitable for applications requiring reliable and efficient PoE solutions.
Manufacturer
The LTC4259ACGW-1 is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company. Analog Devices specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Their products are used in a wide range of applications including communication, industrial, automotive, and consumer electronics. The LTC4259ACGW-1 is specifically a Power over Ethernet (PoE) controller, designed to manage the delivery of power and data over Ethernet cables, facilitating efficient network solutions. ADI is known for its innovation and engineering expertise in developing solutions that enhance the performance and functionality of electronic systems.
Application
The LTC4259ACGW-1 is a Power over Ethernet (PoE) controller primarily used in network devices such as IP cameras, VoIP phones, and wireless access points. It supports IEEE 802.3af/at standards, enabling power sourcing equipment (PSE) to deliver power alongside data over Ethernet cables. Applications include enterprise networking, security systems, and building automation, where efficient power distribution is crucial. The device features advanced power management, surge protection, and fault detection, making it suitable for both indoor and outdoor installations.
Package
The LTC4259ACGW-1 is available in a 28-lead TSSOP (Thin Shrink Small Outline Package) package type. This compact package is designed for efficient thermal performance and space-saving in electronic designs.