RT7670

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.

相关产品

 
 

 

Version

Date

Author

Approved By

Remarks

RT7670 V1.0

2017/12/14

LI xiao yan

Rock

Base on RT7660

RT7670 V3.0

2019/03/01

LI xiao yan

Rock

 

 

 

 

 

 

 

 

 

 

 

 

© 2016 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 ,IEEE802.3at,IEEE802.3bt(Draft V3.2) compliant
  • Maximum 60W 12v or 24voutput power
  • Input voltage range 52V to 57V(60W),
  • 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
  • Point of sale network terminal equipment

·WiMAX access points,

·PTZ cameras,

·notebook computers and thin client terminals.

 

Description

The RT7670 is a High Power over Ethernet (PoE Ultra, BT) module that can deliver up to 60 Watts of output power. 

The RT7670 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 and IEEE 802.3bt Power-over-Ethernet(PoE) standard.

The RT7670 signature and control circuit provides the PoE compatibility signature and

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

to 60W power to the port. It has been designed to work with existing high power PSE’s from leading manufacturers.

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.

 

RT7670 Product Selector

Part Number

Nominal Output

Maximum Output Power*

Marking

Package

 

RT7670-DIP

12V/24V

60W

RT7670

CON

Pin header connection

RT7670-DIP-4KV

12V/24V

60W

RT7670

CON

Surge protection 4kv

RT7670-CON

12V/24V

60W

RT7670

CON

Cable connection

RT7670-CON-BR

12V/24V

60W

RT7670

CON

Onboard Rectifier bridge

*At 25°C with VIN = 52V

60W need forced air or metal heatsink/ enclosure

 

Pin Description:

Pin #

Name

Description

J1-1

VIN+

Direct Input +. This pin connects to the positive (+) output of the input bridge rectifier.

J1-2

VIN-

Direct Input -. This pin connects to the negative (-) output of the input bridge rectifier.

J1-3

BT-Det

Type 3 and Type 4 IEEE802.3bt Detect Output This

pin indicates if an IEEE802.3at or a Type 3 Class4 IEEE802.3bt

PSE is supplying power;..

J1-4

CAP-

CAP-

J1-5

S2

Signature resistance adjustment ,The SA1 and SA2 pins must be connected together when used with a Phihong POE80U orPOE60U PSE.

J1-6

S1

 

 

 

J2-1

ADJ

Output Adjust. The output voltage can be adjusted from is nominal value,

by connecting an external resistor from this pin to either the+12VA pin or

the -12VA pin------------- RT7670-CON not this pin.

J2-2

-12VA

Ground. The ground return for the VOUT 1 output.

J2-3

-12VA

Ground. The ground return for the VOUT 1 output.

J2-4

+12VA

DC Output 1. This pin provides the main regulated output from the DC/DC converter.

J2-5

-12VB

Ground. The ground return for the VOUT 2 output.

J2-6

+12VB

DC Output 2. This pin provides the main regulated output from the DC/DC converter.

J2-7

+12VB

DC Output 2. This pin provides the main regulated output from the DC/DC converter.

  • Absolute Maximum Ratings

 

Parameter

Symbol

Min

Max

Units

1

DC Supply Voltage

VCC

-0.3

60

V

2

DC Supply Voltage Surge for 1ms

VSURGE

-0.6

80

V

3

Storage Temperature

TS

-40

100

OC

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

 

Parameter

Symbol

Min

Typ

Max

Units

1

Input Supply Voltage1

@20W

@40W

@60W

VIN

36

52

55

48

54

56

57

57

57

V

2

Under Voltage Lockout

VLOCK

30

 

36

V

3

Operating Temperature2

TOP

-20

25

70

Ta / OC

4

Operating Temperature

TOP

-20

 

70

Ta / °C

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

  • DC Electrical Characteristics

 

DC Characteristic

Sym

Min

Typ1

Max

Units

Test Comments

1

Nominal Output Voltage

+VDC

11.5

12.0

12.5

V

 

2

Line Regulation

VLINE

 

0.1

 

%

@ 50% Load

3

Load Regulation

VLOAD

 

1

 

%

@ VIN=48V

4

Output Ripple and Noise

VRN

 

110

 

mVp-p

@ Max load2

5

Minimum Load

RLOAD

100

 

 

mA

 

6

Short-Circuit Duration3

TSC

 

 

sec

 

7

Efficiency @ 80% Load

EFF

 

87

 

%

Vin = 54V 50% Load

8

Isolation Voltage (I/O)

VISO

 

1500

 

VPK

Impulse Test

9

Temperature Coefficient

TC

 

0.02

 

%

Per OC

 

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.

 

  • RT7670-CON Typical Connection Diagram 1000M Ethernet :

 

 

  • RT7670-CON-BR Typical Connection Diagram 1000M Ethernet :
  • RT7670-DIP Typical Connection Diagram 1000M Ethernet :

 

 

  • Power Classification

The RT7670 is Type 4 - Class 8 PD requesting the highest nominal amount of power from an IEEE802.3bt PSE  If the RT7670 is connected to an IEEE802.3at PSE, the PSE will recognise the initial Class 4 pulse from the as a Type 2 PD and provide ~25W.

 

  • PD Signature

The RT7670 input complies with the IEEE802.3af specification. When the inputs are connected to a Power Sourcing Equipment (PSE), they will automatically present a Powered Device (PD) signature to the PSE (when requested). The equipment will then recognise that a PD is connected to that line and supply power.

The J1  S1 S2 pins must be connected together when used with a Phihong POE80U or POE60U PSE.

 

  • Operating Temperature Range

It is important to remember that RT7670 is a power supply, and as such careful consideration should be taken over the mechanical design of the host product, with provision for heat sinking and/or forced air cooling.

At full power the RT7670 will generate heat. The device has been designed to be used with heatsink plate or thermally connected to the chassis of the host equipment, or cooled with forced air.

 

  • About cooling

RT7670  if work At full power 60W putout ,need forced air or metal heatsink/ enclosure

  1. Air flow: Min2.2 CFM
  • Package: (mm   ±3mm )

 

  • RT7670-CON PackageSize: (mm   ±3mm )

  • RT7670-DIP PackageSize: (mm   ±3mm )