RT7670 12v 24v 60w High power supply module
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.
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.
Related products
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：
Applications：
·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.
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 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.
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.
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.
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.
RT7670 if work At full power 60W putout ,need forced air or metal heatsink/ enclosure
- Air flow: Min2.2 CFM
