Skyworks Solutions Inc. Si3472/Si3473 PoE PSE Controllers
Skyworks Solutions Inc. Si3472/Si3473 PoE PSE Controllers are fully programmable, 50V to 57V power sourcing equipment (PSE) controllers. The devices are used for IEEE 802.3bt 2-pair, Type 3 applications. As a 2-pair, Type 3 PSE controllers, Si3473/72 are compatible with IEEE 802.3af and IEEE 802.3at powered device (PD) loads. Designed for use in PSE endspans (switches) and midspans (injectors), the Si3473/72 integrates eight (Si3473) or four (Si3472) independent ports. Each has IEEE-required detection and classification functionality.
Features
- Octal or Quad Port Power Sourcing Equipment (PSE) controller
- IEEE 802.3bt 2-pair, Type 3 compliant
- IEEE 802.3af and IEEE 802.3at compatible
- Autonomous or I2C host interface
- Emergency Shutdown support with port priority control
- Adds enhanced features for maximum design flexibility:
- Per-port current and voltage monitoring
- Multi-point detection
- Programmable power MOSFET gate drive control
- Configurable watchdog timer enables failsafe operation
- Maskable interrupt pin
- Comprehensive fault protection circuitry includes
- Power undervoltage lockout
- Output current limit and short-circuit protection
- Thermal overload detection
- Extended operating temp range –40 to +85°C
- 38-pin 5mm x 7mm QFN package (Si3472)
- 56-pin, 8mm x 8mm QFN package (Si3473)
Applications
- IEEE 802.3af, 802.3at, and 2-pair 802.3bt Power Sourcing Equipment (PSE)
- Power over Ethernet switches
- IP phone systems
- Smart grid switches
- Ruggedized and industrial switches
- Multiport PoE injectors
- Applications powering IEEE Type 1 and 2 PDs through Class 4 up to 30W
- Applications powering legacy 2-pair Class 5 PDs to 45W
Evaluation Kit
Skyworks Solutions Inc. Si3472 Kits
Used to create 90W, 802.3bt PoE designs.
Yayınlandı: 2021-12-07
| Güncellenmiş: 2022-04-06