Microsemi / Microchip PD69101 PoE Controller
Microsemi / Microchip PD69101 Power over Ethernet (PoE) Controller is a single-port, mixed-signal, high-voltage controller used in Ethernet switches to enable network devices to share power and data over the same cable. This controller detects IEEE 802.3af-2003-compliant powered devices and IEEE 802.3at high-power devices to ensure safe power feeding. The PD69101 can detect legacy/pre-standard PD devices. The controller disables disconnected ports using DC disconnection methods per IEEE 802.3af-2003 and IEEE 802.3ar-2009 standards. This plug-and-play device executes all real-time functions defined in the IEEE 802.3af-2003 (AF) and IEEE 802.3at High Power (AT) standards. These real-time functions include load detection, AF and AT classification, and multiple classification attempts (MCA).
Microsemi / Microchip PD69101 PoE Controller integrates power, analog, and state-of-the-art logic into a single 24-pin, plastic QFN package. The module supports supply voltages ranging from 32VDC to 57VDC without additional power supply sources. The PD6910 ensures safe power feeding and disconnection of ports with full digital control and a minimum of external components.
Features
- Fully AF and AT compliant
- Includes 2-event classification
- Supports pre-standard PD detection
- Single DC voltage input (32VDC to 57VDC)
- Supports 2 pairs
- VMAIN out-of-range protection
- -40°C to +85°C temperature range
- Overtemperature protection
- Low thermal dissipation (0.5Ω sense resistor)
- Includes on/off command pin
- 2x direct LEDs drive
- Continuous port monitoring and system data
- Configurable load current setting
- Configurable AT/AF modes
- Configurable standard and legacy detection mode
- Power soft-start mechanism
- On-chip thermal protection
- Voltage monitoring and protection
- Built-in 3.3VDC regulator
- Internal power-on reset
- RoHS compliant
Block Diagram
Published: 2018-04-26
| Updated: 2023-03-01