Datasheet for LTC4274CIUHF#PBF:
- Manufacturer Part Number : LTC4274CIUHF#PBF
- Manufacturer : AD
- Description : Single PoE/PoE+/LTPoE++ PSE Controller IC
- Series : LTC4274A
LTC4274C - Reference Price : USD 3.6
- Our Price : We have a better price, contact us by email
- Product Type : Power-over-Ethernet (PoE) Interface Controllers
- Function : PoE Power Sourcing Equipment (PSE)
- Current Suggest : Recommended for New Designs
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 38-Lead QFN (5mm x 7mm w/ EP)
- Pins : 38
- MFG Package Case : 05-08-1701
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 52
- Working Temperature : -40 to 85C
- Other Part Number : LTC4274CIUHF#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC4274A is a single Power Sourcing Equipment (PSE) controller capable of delivering up to 90W of LTPoE++ power to a compatible LTPoE++ Powered Device (PD). A proprietary detection/classification scheme allows mutual identification between a LTPoE++ PSE and LTPoE++ PD while remaining compatible and interoperable with existing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4274A feature set is a superset of the popular LTC4274. These PSE controllers feature low-RON external MOSFETs and 0.25Ω sense resistors which are especially important at the LTPoE++ current levels to maintain the lowest possible heat dissipation.
The LTC4274C targets fully automatic PSE systems powering Type 1 (up to 13W) PDs.
Advanced power management features include: a 14-bit current monitoring ADC, DAC-programmable current limit, and versatile quick port shutdown. PD Discovery uses a proprietary dual-mode 4-point detection mechanism ensuring excellent immunity from false PD detection. The LTC4274A/LTC4274C includes an I2C serial interface operable up to 1MHz.
The LTC4274A/LTC4274C is available in multiple power grades, allowing delivered PD power of 13W, 25.5W, 38.7W, 52.7W, 70W and 90W. These controllers are available in a 38-lead 5mm × 7mm QFN package.
Applications
- LTPoE++ PSE Switches/Routers
- LTPoE++ PSE Midspans
- IEEE 802.3at Type 1 PSE Switches/Routers
- IEEE 802.3at Type 1 PSE Midspans
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
