LTC4296-1
RECOMMENDED FOR NEW DESIGNS5-Port SPoE PSE Controller
- Part Models
- 1
- 1ku List Price
- Starting From $11.37
Overview
- IEEE 802.3cg-compliant SPoE PSE
- Five independent PSE ports
- Wide input-supply operating range: 6 V to 60 V
- Adjustable source and return electronic circuit breakers
- 52 μA (typical) and 51 μA (typical) input supply current in sleep and disabled states, respectively
- Charge pump enhances the external, high-side, N-channel MOSFETs
- Supports SCCP with external microcontroller
- SPI bus interface with PEC
- Voltage, current, and temperature telemetry
- Per port power-good comparators
- PD sleep, wake-up, and wake-up forwarding support
- Available in 48-lead, 7 mm × 7 mm, QFN package
The LTC4296-1 is an IEEE 802.3cg-compliant, five port, single-pair power over Ethernet (SPoE), power sourcing equipment (PSE) controller. SPoE simplifies system design and installation with standardized power and Ethernet data over a single-pair cable. The LTC4296-1 is designed for interoperability with 802.3cg powered devices (PDs) in 24 V or 54 V systems. The LTC4296-1 delivers power using external, low drain-to-source on resistance (RDS(ON)), N-channel metal-oxide semiconductor field-effect transistors (MOSFETs), which minimize voltage drop and ensure application ruggedness.
High-side circuit breakers with foldback, analog current limit (ACL) provide controlled inrush and short-circuit protection. An optional low-side circuit breaker protects the negative output against backfeed faults, and ground faults in nonisolated applications. PD classification via the serial communication classification protocol (SCCP) and maintain full voltage signature (MFVS) ensure that the full operating voltage is only applied to the cable when a PD is present. The SWx pins disconnect port power snubbers during detection and classification. PD initiated sleep and wake-up are supported. The WAKEUP pin supports wake-up forwarding. Telemetry, status, and software control features are accessed via a serial peripheral interface (SPI) bus interface with packet error code (PEC) protection.
The LTC4296-1 provides a versatile SPoE, PSE solution for 10BASE-T1L controllers and switches and can easily be integrated with the Analog Devices, Inc., 10BASE-T1L transceiver portfolio, such as the ADIN1100 (physical layer, PHY), ADIN1110 (MACPHY), and ADIN2111 (2-port switch).
APPLICATIONS
- Operational technology (OT) systems
- Building and factory automation systems
- Field instruments and switches
- Security systems
- Traffic control systems
Documentation
Data Sheet 1
User Guide 3
Technical Articles 1
Video 1
Rarely Asked Question 2
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4296AUK-1#PBF | 48-Lead Plastic QFN (7mm × 7mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareEvaluation Kits
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SPoE Evaluation Kit
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10BASE-T to 10BASE-T1L Media Converter Including SPoE/APL, Featuring ADIN1100 and ADIN1200 Ethernet PHYs and LTC4296-1 PSE Controller
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