RT7630

  AT POE PD Module ( Isolation Model)

Product Description

© 2015 Shenzhen Ring&tone  Electronic Technology Co., Ltd. All rights reserved.

This document contains proprietary information of ring&tone and is not to be disclosed or used without the prior written permission of ring&tone.

Due to update and improvement of ring&tone products and technologies, information in this document is subjected to change without notice.

Features：

• IEEE802.3at and IEEE802.3af compliant
• Maximum 30W output power
• Input voltage range 36V to 57V
• Integral high efficiency DC/DC converter.
• Low output ripple and noise
• High performance with low price
• Short-circuit protection
• Transformer isolation ,1500V isolation (input to output)
• Easy to use, with a minimum number of external components.

Applications：

• IP Cameras
• Wireless access point
• Security and alarm systems
• VOIP telephone
• Point of sale network terminal equipment

Description：

The RT7630 series of modules are designed to extract power from a conventional

twisted pair Category 5 Ethernet cable, conforming to the IEEE 802.3af and IEEE 802.3at    Power-over-Ethernet(PoE) standard.

The RT7630 signature and control circuit provides the PoE compatibility signature and

power classification required by the Power Sourcing Equipment (PSE) before applying up

to 30W power to the port.

The DC/DC converter operates over a wide input voltage range and provides a regulated

output. The DC/DC converter also has built-in short-circuit output protection.

• RT7630 Product Selector

*At 25°C with VIN = 54V Short-term or low-temperature environment.

• Pin Description:

• Absolute Maximum Ratings

Note 1: Exceeding the above ratings may cause permanent damage to the product. Functional operation under these conditions is not implied. Maximum ratings assume free airflow.

• Recommended Operating Conditions

Note 1: With minimum load

     2: See Section Operating Temperature Range

      ** Extended use close to, or at the maximum operating temperature can reduce the life time of the device.

• DC Electrical Characteristics

Note 1: Typical figures are at 25°C with a nominal 48V supply and are for design aid only. Not Guaranteed

     2: The output ripple and noise can be reduced with an external filter, see application note.

     3: Continuous short circuit duration is applicable at 25'C ambient temperature in free air. At higher temperatures or with restricted

        airflow (e.g. in a sealed enclosure) the duration will need to be limited to avoid overheating.

• Power Classification

The RT7630 classification is fixed at Class 4, this means that an IEEE802.3at Type 1 or an IEEE802.3af PSE will default to Class 0. However an IEEE802.3at PSE will recognise the Class 4 as a Type 2 PD.

• RT7630 Typical Connection Diagram 100M Net:
• 
• Package Size： (mm   ±3mm )
• 
• PCB Decal ： (mm ±3mm )
•