RT3203 

© 2012 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：

• IEEE802.3af compliant
• 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
• Adjustable Output
• Optional multi-voltage output 9V-12V 18V-24V
• Transformer isolation ,1500V isolation (input to output)
• Easy to use, with a minimum number of external components.
• Rohs compliant

Applications：

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

Description：

The RT3203 series of modules are designed to extract power from a conventional twisted pair Category 5 Ethernet cable, conforming to the IEEE 802.3af Power-over-Ethernet(PoE) standard.

The RT3203 signature and control circuit provides the PoE compatibility signature and

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

to 15W power to the port. The RT3203  provides a Class 0 signature.

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.

• RT3203 Product Selector

*At 25°C with VIN = 48V

** Maximum Output Power: means it not could be operated in continuous stage .only short-term of Boot up/Heavy loading

• 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.

• Pin Description:

• 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.

• RT3203S Typical Connection Diagram :
• RT3203 Typical Connection Diagram :
• 
• • Reliability MTBF:

  About the life time ,we design according to the following:

  1)  life time of RT3203  : 100,000 hours @ 25°C

  2) RT3203 use a Aluminum Electrolytic Capacitors  Life Calculation:2000 hour@105 degree  

  • Safety test items & test report

  Test Requested	Test result
  Electric strength -1500Vrms at 50 to 60Hz for 60s, applied as specified in subclasuse 5.2.2 of IEC 60950	Pass

   

   

   

   

  • Mechanical / Environmental Performance data

  Mechanical / Environmental Performance data
  	Item	Requirement and Standard
  1	Resistance to Wave Soldering Heat	max Preheat Temp range & time 120 ℃ / 180S max soldering temp &time:265 ℃ / 4S
  2	Solder ability	Solder able area shall have minimum of 95% solder coverage. And then into solder bath,Temperature at 245 ±5 ℃   , for 4-5sec.
  3	Hand Soldering Temperature Resistance	T  > =350 ℃   , 3sec at least.
  4	Thermal Shock	subject to follow condition for 5 cycles.1 cycles: -55 ℃    , 30 minutes +85 ℃    , 30 minutes
  5	Humidity(Temp Cycling)	less than 95% (non-condensing) ( -20 to 70 ℃)
  6	Temperature Life	temperature life at 85℃     for 96 hours.
  7	Salt Spray	connectors to 5% salt-solution concentration, 35 ℃ Gold flash for 8 hours there will be no change in the gold layer

   

   

  • RT3203 Package Size： (mm )
  • 
  • RT3203 PCB Decal ： (mm )
  • 
  • 
  •