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Analog Devices LTC9101-2A | Demoboard EVAL-LTC9101-2A
Evaluating the LTC9101-2/LTC9101-2A/LTC9101-2B and LTC9102 48-Channel IEEE 802.3at/bt PSE
Overview
| Topology | LAN / POE |
| Input voltage | 51-57 V |
| IC revision | A |
Description
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.
Features
- Fully Compliant IEEE 802.3bt Type 3 and 4 PSE
- Up to 24 PSE Ports with Two Power Channels per Port
- +80V/–20V Tolerant Port-Facing Pins
- ECC-Protected eFlash and Data RAMs
- Low Power Path Dissipation per Channel
- 100mΩ Sense Resistance
- 30mΩ or Lower MOSFET RDS(ON)
- Chipset Provides Electrical Isolation
- Eliminates Optos and Isolated 3.3V Supply
- Very High Reliability Multipoint PD Detection
- Connection Check Distinguishes Single-Signature and Dual-Signature PDs
- Continuous Per-Port Voltage and Current Monitoring
- 1MHz I2C Compatible Serial Control Interface
- Pin or I2C Programmable PD Power
- Available in a 24-Lead 4mm × 4mm (LTC9101‑2) and 64-Lead 7mm × 11mm (LTC9102) QFN Packages
Typical applications
- PoE PSE Switches/Routers and Midspans
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(mm) | f(mm) | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | DF(%) | RISO | Ceramic Type | W(mm) | H(mm) | Fl(mm) | Packaging | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Pins | Version | Type | Working Voltage(V (AC)) | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT(V (RMS)) | Mount | L(µH) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 10 V(DC), 1.6 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Length1.6 mm | – | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage10 V (DC) | Size0603 | Dissipation Factor5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +125 °C | – | – | – | |||||
 | WL-SMSW SMT Mono-color Side View Waterclear, 1.6 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMSW SMT Mono-color Side View Waterclear | Length1.6 mm | – | Dominant Wavelength [typ.]470 nm | Emitting ColorBlue | Peak Wavelength [typ.]465 nm | Luminous Intensity [typ.]145 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 rectangular | – | – | – | Width0.98 mm | Height0.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | MountSMT | – | ||||
 | WE-LQS SMT Power Inductor, 6 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | Length6 mm | – | – | – | – | – | – | – | – | – | – | – | Size6045 | – | – | – | Width6 mm | Height4.5 mm | – | – | Rated Current0.84 A | Saturation Current0.95 A | DC Resistance570 mΩ | Self Resonant Frequency5.4 MHz | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | MountSMT | Inductance150 µH | ||||
 | WR-PHD Pin Header, 6 mm, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | Length6 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | – | PackagingBag | Rated Current2 A | – | – | – | Pins3 | – | TypeStraight | Working Voltage200 V (AC) | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | MountTHT | – | |||
 | WE-LAN LAN Transformer, 17.55 mm, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LAN LAN Transformer | Length17.55 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Width16 mm | Height98.8 mm | Pad Dimension13.97 mm | – | – | – | – | – | Pins24 | VersionSMT | Type4PPoE (to 900 mA) | – | Data rate10/100/1000BASE-T | Ports1 | PoE4PPoE (up to 1000 mA) | Improved Common Mode RejectionNo | Operating Temperature -40 °C up to +105 °C | Insulation Test Voltage1500 V (RMS) | MountSMT | Inductance350 µH | ||||
 | WA-SNSR Self-Retaining Spacer, 19.1 mm, 4.8 mm | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNSR Self-Retaining Spacer | Length19.1 mm | Drilling in Panel4.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -30 °C up to +85 °C | – | – | – | |||
 | WR-BHD 2.54 mm Male, 33.06 mm, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-BHD 2.54 mm Male | Length33.06 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | – | PackagingTray | Rated Current3 A | – | – | – | Pins20 | VersionLow Profile | TypeAngled | Working Voltage250 V (AC) | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | MountTHT | – |