LTC9101-2B

推荐新设计使用

24-/48-Port IEEE 802.3bt PoE PSE Controller

数据手册 (Rev. 0) 产品选型表

产品模型: 2

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产品详情

Fully Compliant IEEE 802.3bt Type 3 2-Pair PSE
Up to 48 PSE Ports with One Power Channel per Port
+80V/–20V Tolerant Port-Facing Pins
ECC-Protected eFlash and Data RAMs
Industry-Leading Power Path Efficiency
- 100mΩ Sense Resistance
- 30mΩ or Lower MOSFET R_DS(ON)
Chipset Provides Electrical Isolation
- Eliminates Optos and Isolated 3.3V Supply

Very High Reliability Multipoint PD Detection
Continuous Voltage, Temperature, and Current Monitoring
1MHz I²C Compatible Serial Control Interface
Pin or I²C Programmable PD Power
Available in a 24-Lead 4mm × 4mm (LTC9101-2B) and 64-Lead 7mm × 11mm (LTC9102) QFN Packages

参考资料

数据手册 1

LTC9101-2B/LTC9102: 24-/48-Port IEEE 802.3bt PoE PSE Controller Data Sheet (Rev.0) 01/21/2025

用户手册 1

UG-2131: Evaluating the LTC9101-2/LTC9101-2A/LTC9101-2B and LTC9102 48-Channel IEEE 802.3at/bt PSE (Rev.A) 01/21/2025

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产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LTC9101AUF-2B#PBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC9101AUF-2B#TRPBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

这是最新版本的数据手册

软件资源

Evaluation Software 1

Software Interface Data Sheet

The software interface data sheet for this PSE may be requested from the Software Request Form (SRF). This data sheet describes the I²C interface and programming details for the respective PSE controller.

Software Interface Data Sheet 新

评估套件

Evaluating the LTC9101-2/LTC9101-2A/LTC9101-2B and LTC9102 48-Channel IEEE 802.3at/bt PSE

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产品详情

The EVAL-LTC9101-2 is a 48-channel IEEE 802.3at/bt compliant power sourcing equipment (PSE). The EVAL-LTC9101-2 includes the DC3159A-C, DC3159A-D, or DC3159A-E daughter card, the DC3017A-B motherboard, and features the LTC9101-2/ LTC9101-2A/LTC9101-2B and LTC9102 chipset.

In the EVAL-LTC9101-2, the daughter card has a single LTC9101-2x digital controller, where X denotes either the LTC9101-2, LTC9101-2A, or the LTC9101-2B. The DC3159A-C has the LTC9101-2, the DC3159A-D daughter card has the LTC9101-2A and the DC3159A-E has the LTC9101-2B. The digital controller interfaces with four LTC9102 (12-channel) analog controllers for a total of 48 PSE channels.

The LTC9101-2x use a proprietary isolated data interface allowing the LTC9101-2x digital controller to directly connect to the host controller I²C interface and eliminating the need for costly optocouplers and an additional 3.3 V supply.

The EVAL-LTC9101-2 kit connects to up to twenty-four, 802.3af/at/bt PDs directly at each port for 4-pair power evaluation. This kit version can operate autonomously or with host control over I²C.

The EVAL-LTC9101-2A kit connects to up to forty-eight, 802.3af/at PDs with an ethernet splitter for each two ports for 2-pair power evaluation. This kit version requires host control over I²C.

The EVAL-LTC9101-2B kit connects to up to forty-eight, 802.3af/at/bt PDs with an ethernet splitter for each two ports for 2-pair power evaluation. This kit version can operate autonomously or with host control over I²C.

Indicator LEDs quickly show channel status for the 48 power channels. An optional on-board buck regulator provides 3.3 V from the V_EE supply for the digital circuity. This demonstration manual provides an EVAL-LTC9101-2 overview and quick start procedure.

Design files for this circuit board are available.