LTC4267IDHC

The LTC4267IDHC is an integrated circuit from Analog Devices, designed for Power over Ethernet (PoE) applications. It combines an IEEE 802.3af-compliant powered device (PD) interface with a high-efficiency switching regulator. The primary function is to facilitate power delivery and data transfer over Ethernet cables, enabling the device to operate without a separate power supply.
Key features include an onboard MOSFET for high power efficiency, support for 12V to 57V input voltage range, and a robust thermal design suitable for high-power applications. The LTC4267IDHC also incorporates programmable classification and inrush current control for smooth startup. Its internal switching regulator can deliver up to 100W, making it suitable for various applications, including IP phones, wireless access points, and network cameras. The device is packaged in a thermally enhanced, 20-lead TSSOP package, which aids in heat dissipation and simplifies PCB layout. Overall, the LTC4267IDHC offers an efficient, integrated solution for PoE-enabled devices, adhering to industry standards while providing design flexibility and reliability.

The LTC4267IDHC is an integrated powered device (PD) interface controller designed for Power over Ethernet (PoE) applications. Key features include:
1. IEEE 802.3af Compliance: Ensures compatibility with PoE systems, supporting the detection, classification, and delivery of power over Ethernet cables.
2. Integrated DC-DC Converter: Offers a complete solution with a built-in flyback controller, simplifying the design process and reducing the need for external components.
3. High Efficiency: The integrated DC-DC converter is designed for high efficiency, which is crucial for minimizing power loss and improving energy management.
4. Programmable Classification: Allows customization of power classification levels to suit different power requirements of the device.
5. Thermal Protection: Includes over-temperature protection to enhance reliability and prevent damage from overheating.
6. Integrated Switching MOSFET: Reduces the need for external components, offering a more compact and cost-effective solution.
7. Wide Operating Temperature Range: Suitable for various environments, enhancing the flexibility of usage.
These features make the LTC4267IDHC an efficient and versatile choice for PoE applications, offering a compact, integrated solution for powering devices over Ethernet networks.

The LTC4267IDHC is packaged in a 16-pin SSOP (Shrink Small Outline Package). This type of package is compact, surface-mountable, and suitable for applications requiring efficient utilization of board space.

The LTC4267IDHC is a Power over Ethernet (PoE) interface and switching regulator controller. It is designed to facilitate the power management and delivery in PoE applications. The device is packaged in a 16-pin SSOP (Shrink Small Outline Package).
Here is a brief summary of its pin functions:
1. VPORTN: Negative input from the Ethernet cable.
2. VPORTP: Positive input from the Ethernet cable.
3. RCLASS: Resistor connection for classification current setting.
4. T2P: Indicates detection and power classification.
5. SHDN: Shutdown control pin.
6. GND: Ground connection.
7. SENSE: Current sense input.
8. VCC: Power supply pin for the internal circuitry.
9. SW: Switch node for the internal power MOSFET.
10. FB: Feedback pin for voltage regulation.
11. COMP: Compensation pin for the error amplifier.
12. RT: Timing resistor for the switching frequency.
13. SYNC: Synchronization input for the oscillator.
14. VOUT: Output voltage for the powered device.
15. NC: No connection.
16. NC: No connection.
These pins collectively manage PoE requirements, including power classification, voltage regulation, and control of the output power.

The LTC4267IDHC is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures a broad portfolio of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. The company serves various markets, including industrial, automotive, consumer, and communications industries. Analog Devices is known for its expertise in data conversion and signal conditioning technology, which makes it a key player in the electronics and semiconductor industry.

The LTC4267IDHC is a Power over Ethernet (PoE) interface controller used in applications such as IP cameras, VoIP phones, and wireless access points. It integrates an IEEE 802.3af-compliant Powered Device (PD) interface with a high-efficiency DC/DC converter, making it suitable for PoE-enabled devices requiring efficient power management and simplified power sourcing through Ethernet cables. Its compact design and compliance with PoE standards make it ideal for networked devices needing reliable power delivery over data lines.

The LTC4267IDHC is a Power over Ethernet (PoE) powered device interface controller. Equivalent products include:
1. TPS23753 by Texas Instruments
2. MAX5969 by Maxim Integrated
3. Si3404 by Silicon Labs
4. PD70224 by Microchip Technology
These alternatives provide similar functionalities for PoE applications, including powered device interface and power management. Always compare specific features and specifications to ensure compatibility with your requirements.