SPE894x

Overview

In the PoE scheme, two different types of devices are involved: Power Sourcing Equipment (PSE) and Powered Devices (PD). Compatible with IEEE 802.3af standard, SPE894x is a 4-port channel PSE module for PoE system. It can connect to 4 PD modules at the same time and pass the electric power to them.

SPE89x module supports PoE power management from class 0 to class 4, as well as End-point and Mid-span modes. The Built-in 5A surge TVS tube in PSE output port with the function of short circuit protection can efficiently reduce the damages from short circuit load and surge and provide a stable and safe PoE environment.

Go shopping SPE894x(IM141020001)

Features

• Compatible with IEEE 802.3af standard
• Support 10M/100M/1000M PoE system
• Support End-point and Mid-span modes
• Maximum 600mA current output in each channel
• Support PoE electric power class from 0 to 4
• Under voltage protection, shorted load protection, over current *protection
• Built-in differential mode voltage 1.5kV, 5A peak current *protection in each channel

Application Notes

• IAD
• Multiband WAPs
• RFID system
• POS Terminal
• Industrial automation systems
• IP Phone terminal and iPBXs
• Surveillance System(NVR, IPC)
• Entrance Surveillance System
• 100M/1000M Ethernet gateway/switch/router
• WiMAX ASN/BTS and CPE/ODU system

Electronic Characteristics

	Test condition	Min	Typical	Max	Unit
VEE_ABS		-62		+0.3	V
VEE	IEEE 802.3af (15.4 W)	-57	-48	-45	V
VUVLO	VEE from positive to negative	−38	−36		V
	VEE from negative to positive		−33	−31	V
IPORT	Class 0	0		5	mA
	Class 1	8		13
	Class 2	16		21
	Class 3	25		31
	Class 4	35		45
	Over Current	51
ICUT	Class 0	350			mA
	Class 1	91
	Class 2	160
	Class 3	350
	Class 4	600
RON	IPort≤720mA		0.3	0.6
3.3V output		3.15	3.3	3.45	V
	DC load			50	mA
T_OP		0		70
T_storage		-10		70

Hardware

Pin Map

	Number	Name	Description
J1	1	VEE	Input Power(-57~ -45V)
	2	VEE	Input Power(-57~ -45V)
	3	GND
	4	GND
	5	3.3V	3.3V output
	6	SDA	I2C data signal
	7	SCLK	I2C clock signal
	8	A0	Chip Address 0 (1 - access to 3.3V, 0 - Ground )
	9	A1	Chip Address 1 (1 - access to 3.3V, 0 - Ground )
	10	RESET
J2	1	VOUT2	Class 2 PoE output
	2	GND
	3	VOUT3	Class 3 PoE output
	4	GND
	5	VOUT0	Class 0 PoE output
	6	GND
	7	VOUT1	Class 1 PoE output
	8	GND
	9	NC
	10	NC