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Texas Instruments TPS2372-3 | Demoboard PMP23366
Dual-input redundant PoE Class 6 PD with smooth transition and telemetry reference design
Overview
| Topology | LAN / POE |
| Input voltage | 42.5-57 V |
| Output 1 | 5 V / 9 A |
| IC revision | A |
Description
This design implements a Power over Ethernet (PoE) Class 6 Powered Device (PD) with dual redundant PoE inputs and smooth transition between these inputs and a an auxiliary input. Two TPS2372-3 PD controllers are utilized for high power PoE control up to 51W. A 5V at 9A active clamp forward converter is implemented with the PWM portion of a TPS23734 IC. An INA237A provides input voltage/current/power/temperature measurements via I2C.
Features
Dual redundant PoE inputs plus auxiliary 48V input
Smooth transition between all inputs
PoE Port 1 priority over PoE Port 2
Auxiliary priority over either PoE Port
Telemetry for input voltage, current and power via I2C
88% efficiency from PoE input; 90% efficiency from auxiliary input
Typical applications
- Occupancy detection (people tracking, people counting)
- PTZ wired IP camera
- WLAN/Wi-Fi access point
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT (V (RMS)) | Mount | L (µH) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006057 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 pF | ±5% | 50 | 0603 | 1000 | – | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | -55 °C up to +125 °C | – | – | – | ||
| 885012206081 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 470 pF | ±10% | 50 | 0603 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | -55 °C up to +125 °C | – | – | – | ||
| 885012206087 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 4.7 nF | ±10% | 50 | 0603 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | -55 °C up to +125 °C | – | – | – | ||
| 885012206095 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | – | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | -55 °C up to +125 °C | – | – | – | ||
 | 7490220122 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LAN LAN Transformer | – | – | – | – | – | – | – | – | 17.55 | 16 | 98.8 | 13.97 | – | 10/100/1000BASE-T | 1 | 4PPoE (up to 1000 mA) | No | -40 °C up to +105 °C | 1500 | SMT | 350 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012006057 | SPEC | |
| 885012206081 | SPEC | |
| 885012206087 | SPEC | |
| 885012206095 | SPEC | |
| 7490220122 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT (V (RMS)) | Mount | L (µH) | Samples |
|---|