High density isolated PoE and GigE reference design for machine vision cameras and vision sensors
TIDA-010083
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Key Document
Description
Power over Ethernet (PoE) offers an easy and reliable solution to combine power and data in one cable with high data rate and long reach. This combination makes PoE ideal for small devices such as machine vision cameras and vision sensors. This reference design implements a complete PoE powered device (PD) including a 1-Gb/s physical layer and a highly efficient, isolated power solution in a very small form factor of 27 x 27 mm.
Features
- IEEE802.3at PoE Type 1 PD Class 0: 13 W
- Flyback with synchronous rectification
- Optocouplerless primary side feedback
- 5-V output, accuracy better than ±2%
- Up to 92% efficiency
- Additional 24-V auxiliary input
- 10/100/1000 Mbit/s Ethernet
- RGMII interface
- 1x isolated digital outputs
- 2x isolated digital inputs
- Small form factor of 27 x 27 mm
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Schematic/Block Diagram
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Design Guide
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TI Devices (10)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| CSD17579Q3A |
30V, N ch NexFET MOSFET™, single SON3x3, 14.2mOhm |
MOSFETs |
Sample & Buy |
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| CSD19538Q2 |
100V, N ch NexFET MOSFET™, single SON2x2, 59mOhm |
MOSFETs |
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Not Available |
| DP83867IR |
Industrial temperature, robust gigabit Ethernet PHY transceiver |
Ethernet ICs |
Sample & Buy |
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| ISO1212 |
Dual-channel Isolated 24-V to 60-V digital input receiver for digital input modules |
Isolation |
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| LM74700-Q1 |
3.2-V to 65-V, 80-uA IQ automotive ideal diode controller |
Power switches |
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| TPD4E05U06 |
4-channel ultra-low-capacitance IEC ESD protection diode |
Circuit protection ICs |
Sample & Buy |
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| TPS23758 |
IEEE 802.3at PoE PD with no-opto sync flyback DC-DC controller |
Power over Ethernet (PoE) ICs |
Sample & Buy |
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| TPS62801 |
1.8V-5.5V input, tiny, 1A ultra-low Iq step-down converter in 1.05 x 0.70mm chip scale package |
Step-down (buck) regulators |
Sample & Buy |
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| TPS62802 |
1.8V-5.5V input, 1-A ultra-low Iq step-down converter |
Step-down (buck) regulators |
Sample & Buy |
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| TVS3300 |
33-V flat-clamp surge protection device |
Circuit protection ICs |
Sample & Buy |
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CAD/CAE symbols
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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
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Technical documentation
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Application notes (1)
| Title | Type | Size (KB) | Date |
| | PDF | 905 |
30 Sep 2019
|
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 9204 |
10 Oct 2019
|
Design files (6)
| | ZIP | 448 |
10 Oct 2019
|
| | ZIP | 3250 |
10 Oct 2019
|
| | PDF | 1436 |
10 Oct 2019
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| | PDF | 278 |
10 Oct 2019
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| | PDF | 63 |
10 Oct 2019
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| | PDF | 2477 |
10 Oct 2019
|
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