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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 12DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：Controller (PD)
- Number of Channels：1
- Power - Max：25.5 W
- Internal Switch(s)：Yes
- Auxiliary Sense：No
- Standards：802.3at (PoE+), 802.3af (PoE)
- Voltage - Supply：37.2V ~ 60V
- Current - Supply：1.35mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-DFN (4x3)
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Overview
The LTC4265IDE#PBF is a third-generation Powered Device (PD) interface controller designed for IEEE 802.3at high-power Power-over-Ethernet applications, supporting up to 25.5W. It integrates a single channel compliant with both 802.3af and 802.3at standards. The device features an internal power switch and operates within a 12-DFN package measuring 4x3 mm. It is rated for industrial temperature ranges and includes I2C-compatible control interfaces for system monitoring.
Feature Summary
- Integrates a single-channel power switch for direct PD implementation
- Supports high-power IEEE 802.3at Type 2 classifications
- Includes I2C-compatible digital interface for configuration and status reporting
Applications
- High-power PoE powered devices requiring up to 25.5W
- Industrial networking equipment utilizing 802.3at standards
- System designs needing integrated power switching and management
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging when sourcing components. Confirm that the IDE designation corresponds to the required industrial operating temperature range for your application environment. Ensure compatibility with the host system's I2C addressing requirements before finalizing procurement decisions.
Selection Notes
Select this component for designs requiring a compact solution that combines PD classification logic with an integrated power switch. It is suitable for applications needing support for both legacy 802.3af and higher-power 802.3at standards without external switching components. Consider the 12-DFN footprint constraints during PCB layout planning.
Part Context
This part belongs to Analog Devices' third-generation PoE controller family, specifically engineered for Powered Devices. It complements other controllers like the LTC4264 by offering integrated switching capabilities. The series supports various power classifications to meet evolving Ethernet powering standards.
Replacement Considerations
The LTC4265CDE#TRPBF serves as a tape-and-reel alternative within the same functional family. Verify package compatibility and temperature ratings when substituting between different suffix variants of the LTC4265 series.
