Analog Devices LTC9103 | Demoboard DC3159A-B

Beschreibung

Demonstration kit 3160A-KIT is an Ethernet Alliance Gen 2 PoE certified, 24-port IEEE 802.3at/bt-compliant power sourcing equipment (PSE) composed of a DC3159A daughter card (48-channels) and DC3017A motherboard (24, 4-pair ports). The DC3160A-KIT features the LTC®9101-1/LTC9102/LTC9103 PSE platform chipset. In the DC3160A-KIT, a single LTC9101-1 digital controller interfaces with up to four analog controllers. The DC3159A-A daughter card has four LTC9102, 12-channel, analog controllers for 48 power channels total. The DC3159A-B daughter card has two LTC9102, 12-channel, analog controllers and two LTC9103, 8-channel, analog controllers for 40 power channels total. Up to twentyfour IEEE 802.3af, IEEE 802.3at, or IEEE 802.3bt powered devices (PDs) can be connected to the DC3160A-KIT and powered from this system using a single power supply.The LTC9101-1, LTC9102, and LTC9103 use a proprietary isolated data interface allowing the LTC9101-1 to directly connect to the host controller I2C interface and eliminates the need for costly opto-couplers and an additional 3.3V supply. The DC3160A-KIT can operate completely autonomously without a host controller or with a DC590 for I2C interfacing. Robust surge protection is provided by design and onboard surge protection devices. Indicator LEDs show channel status for up to 48 power channels. An optional on-board buck regulator provides 3.3V from the VEE supply for the digital circuity. This demonstration manual provides an auto mode quick start procedure and DC3160A-KIT overview.

Eigenschaften

• Fully Compliant IEEE 802.3bt Type 3 and 4 PSE
• Fully Compliant IEEE 802.3at Type 2 PSE
• Software-Compatible with LTC4291-1/LTC4292
• Up to 48 PSE Ports with One Power Channel per Port
• Up to 24 PSE Ports with Two Power Channels per Port
• 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 Power and Current Monitoring
• 1MHz I2C Compatible Serial Control Interface
• Pin or I2C Programmable PD Power
• Available in 24-Lead 4mm × 4mm (LTC9101‑1) and a 64-Lead 7mm × 11mm (LTC9102/LTC9103) QFN Packages

Typische Anwendungen

• PoE PSE Switches/Routers and Midspans

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers