RT7652
- IEEE802.3at and IEEE802.3af compliant
- Maximum 12V 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.
- Integrated 100M LAN Filters
- IEC 61000-4-2 Level 4 (8KV/15KV) ESD protection
- IEC 61000-4-5 Level 3 SURGE LEVEL :10/700μs 40ohm 4KV---Optional
Related products
RT7652
30W POE PD Module ( Isolation Model)
Product Description
Version |
Date |
Author |
Approved By |
Remarks |
V1.0 |
2019/2/14 |
LI xiao yan |
Rock |
12V Base on RT7650B |
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© 2019 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 12V 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.
- Integrated 100M LAN Filters
- IEC 61000-4-2 Level 4 (8KV/15KV) ESD protection
- IEC 61000-4-5 Level 3 SURGE LEVEL :10/700μs 40ohm 4KV---Optional
Applications:
- IP Cameras
- Wireless access point
- Security and alarm systems
- VOIP telephone
- Point of sale network terminal equipment
Description:
The RT7652 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 RT7652 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.
- Product Selector
Part Number |
Nominal Output * |
Maximum Output Power* |
ESD protection |
Surge Level CM |
Surge Level DM |
Marking |
Package |
RT7652 -1 |
12V 2A |
30W |
YES |
1KV |
1KV |
RT7650 |
38*38 |
RT7652 -2 |
12V 2A |
30W |
YES |
2KV |
2KV |
RT7650 |
38*38 |
RT7652 -4 |
12V 2A |
30W |
YES |
4KV |
4KV |
RT7650 |
38*38 |
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*At 25°C with VIN = 54V
- Power Classification
The RT7652 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.
- RT7652 Pin Description:
Connector and Pin Description |
|
J1 |
POE_IN 1 1.25mm Connector |
1 |
Ethernet cable 1 |
2 |
Ethernet cable 2 |
3 |
Ethernet cable 3 |
4 |
Ethernet cable 6 |
5 |
LED+ Internal Connector J3 5pin |
6 |
LED- Internal Connector J3 6pin |
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J2 |
POE_IN 2 1.25mm Connector |
1 |
DC Auxiliary input 12V+ |
2 |
DC Auxiliary input 12V- |
3 |
Ethernet cable spare pair 4,5 |
4 |
Ethernet cable spare pair 7,8 |
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J3 |
OUT (Split putout) 1.25mm Connector |
1 |
Ethernet cable 1 |
2 |
Ethernet cable 2 |
3 |
Ethernet cable 3 |
4 |
Ethernet cable 6 |
5 |
LED+ Internal Connector J1 5pin |
6 |
LED- Internal Connector J1 6pin |
7 |
12V Output + |
8 |
12V Output - |
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J4 |
DC out 2 ,2.0mm Connector |
1 |
12V Output + |
2 |
12V Output - |
- Absolute Maximum Ratings
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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
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Parameter |
Symbol |
Min |
Typ |
Max |
Units |
1 |
Input Supply Voltage1 |
VIN |
36 |
48 |
57 |
V |
2 |
Under Voltage Lockout |
VLOCK |
30 |
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36 |
V |
3 |
Operating Temperature2 |
TOP |
-20 |
25 |
70 |
Ta / OC |
4 |
Operating Temperature 30W Continuous 24W Continuous 14W Continuous |
TOP |
-40 |
25 |
50 70 85 |
Ta / °C |
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
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DC Characteristic |
Sym |
Min |
Typ1 |
Max |
Units |
Test Comments |
1 |
Nominal Output Voltage |
+VDC |
11.5 |
12.0 |
12.5 |
V |
12V |
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2 |
Line Regulation |
VLINE |
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0.1 |
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% |
@ 50% Load |
3 |
Load Regulation |
VLOAD |
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1 |
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% |
@ VIN=48V |
4 |
Output Ripple and Noise |
VRN |
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180 |
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mVp-p |
@ Max load2 |
5 |
Minimum Load |
RLOAD |
200 |
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mA |
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6 |
Short-Circuit Duration3 |
TSC |
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∞ |
sec |
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7 |
Efficiency @ 80% Load |
EFF |
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86 |
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% |
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8 |
Isolation Voltage (I/O) |
VISO |
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1500 |
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VPK |
Impulse Test |
9 |
Temperature Coefficient |
TC |
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0.02 |
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% |
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.
- RT7652 Package Size : (mm±3mm )
- Updated.....
- RT7652 Typical Connection Diagram :
- Updated.....