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Product Detailed Parameters
- Description：IC POE CNTRL 1 CHANNEL 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Type：Controller (PD)
- Number of Channels：1
- Power - Max：90 W
- Internal Switch(s)：No
- Auxiliary Sense：Yes
- Standards：802.3at (PoE+), 802.3af (PoE), LTPoE++
- Voltage - Supply：23V ~ 60V
- Current - Supply：2mA (Max)
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
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Overview
The LT4275AHMS#TRPBF is a Powered Device (PD) controller supporting IEEE 802.3af, 802.3at, and LTPoE++ standards. It operates with an input voltage range of 23V to 60V and supports a maximum power output of 90W. The device features a proprietary classification scheme for LTPoE++ applications, enabling power delivery levels of 38.7W, 52.7W, 70W, or 90W. It includes auxiliary input capabilities for 12VDC and 24VAC sources. The component is housed in a 10-MSOP package and functions as a DC-to-DC converter topology.
Feature Summary
- Supports IEEE 802.3af, 802.3at, and LTPoE++ powered device standards
- Proprietary LTPoE++ classification scheme for high-power delivery
- Integrated auxiliary input support for 12VDC and 24VAC sources
- Pin-for-pin compatible within the LT4275 family
Applications
- High-power PoE powered devices requiring LTPoE++ classification
- Network infrastructure equipment utilizing auxiliary power inputs
- Industrial IoT devices needing robust PD controller integration
- PoE solutions designed for 25W to 90W power budgets
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the AHMS variant matches the required thermal and electrical specifications for the target application. Ensure compatibility with existing PCB footprints designed for the 10-MSOP package. Cross-reference the latest datasheet for any pinout revisions or updated operating conditions before finalizing procurement.
Selection Notes
Select this component for designs requiring compliance with multiple PoE standards including LTPoE++. The AHMS variant offers specific performance characteristics suitable for higher power applications up to 90W. Consider the auxiliary input feature if the design requires hybrid power sourcing from both PoE and local AC/DC supplies. Evaluate the 10-MSOP package constraints against available board space.
Part Context
The LT4275 series comprises pin-for-pin compatible controllers for IEEE 802.3 and LTPoE++ powered devices. The LT4275A variant specifically employs a proprietary classification scheme to deliver higher power levels. This family allows designers to scale power requirements across different product lines using interchangeable components without redesigning the control interface.
Replacement Considerations
LT4275BHMS#TRPBF is a pin-compatible alternative within the same family. LT4275CHMS variants are available for lower power Type 1 applications. Direct substitutes should be verified against the specific LTPoE++ classification requirements and auxiliary input configurations.
