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Texas Instruments TPS23730 | Demoboard PMP23253
Class 6, PoE, PD, 15-V 3.3-A active-clamp forward converter reference design
Overview
| Topology | LAN / POE |
| Input voltage | 37-57 V |
| Output 1 | 15 V / 3.3 A |
| IC revision | A |
Description
This reference design implements a Power over Ethernet (PoE) power device (PD) active-clamp forward converter with 15-V and 3.3-A output. A TPS23730 PD with integrated Pulse Width Modulator (PWM) controller provides the necessary functions to implement the PoE PD control and the PWM control for the active-clamp forward converter. This design uses Secondary-Side Regulation (SSR) with an optocoupler feedback.
Features
- IEEE802.3bt Type 3 compliant PoE PD
- Integrated PWM controller for flyback or active-clamp forward configuration
- Frequency dithering for EMI reduction
- Soft-start control with advanced startup and hiccup mode overload protection
- Soft-stop shutdown
- Optional adapter input
Typical applications
- Redundant Power Feeds or Power Sharing
- Video and VoIP Telephones, Access Points, Security Cameras, Pass-through System
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | Size | Q (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | IR (mA) | ISAT (A) | LR (µH) | Pins (pcs) | Color | Gender | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Winding Style | Number of windings | L1 (µH) | IR (mA) | RDC max. (Ω) | VR (V) | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT (V (AC)) | Mount | L (µH) | LSmin. (nH) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060YS75000 | SPEC | 26 files RAY files
| Active i| Production is active. Expected lifetime: >10 years. | WL-SMCW SMT Mono-color Chip LED Waterclear | 590 | Yellow | 595 | 120 | 2 | AlInGaP | 140 | – | – | 0603 | – | – | – | 1.6 | 0.8 | 0.7 | – | Tape and Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +85 °C | – | SMT | – | – | ||
 | 742792641 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | 0603 | – | – | – | 1.6 | 0.8 | 0.8 | 0.3 | – | – | – | – | – | – | – | 1500 | – | – | – | – | – | 300 | 450 | 250 MHz | 2000 | 0.15 | High Current | – | 1 | – | 2000 | 0.15 | – | – | – | – | – | -55 °C up to +125 °C | – | SMT | – | – | ||
 | 744272251 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-SL5 SMT Common Mode Line Filter | – | – | – | – | – | – | – | – | – | – | – | – | – | 10 | 8.7 | 6.5 | – | – | – | – | – | – | – | – | 2000 | – | – | 4 | – | – | – | 970 | – | – | 0.035 | – | sectional | 2 | 250 | 2000 | 0.035 | 80 | – | – | – | – | – | 1000 | SMT | 250 | 1500 | ||
 | 744325550 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | 1050 | – | – | – | 10.5 | 10.2 | 4.7 | – | – | 12 | 4.5 | 12 | 10.3 | 30 | Superflux | – | – | 4.3 | 2 | – | – | – | – | – | – | 0.01133 | – | – | 9.5 | – | – | – | – | – | – | – | – | -40 °C up to +150 °C | – | SMT | 5.5 | – | ||
| 74435573300 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | – | – | – | – | – | – | 1890 | – | – | – | 18.3 | 18.2 | 8.9 | – | – | 8.7 | 8 | 9 | 21.7 | 9.5 | MnZn | – | – | 26 | 2 | – | – | – | – | – | – | 23.44 | – | – | 20.5 | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 33 | – | ||
 | 768775322 | SPEC | – | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD2 HV SMT Power Inductor (High Voltage) | – | – | – | – | – | – | – | – | – | 7850 | – | – | – | 7 | 7.8 | 5 | – | – | – | – | – | – | 1.6 | – | 150 | 0.2 | – | – | – | – | – | – | – | – | 7.2 | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 2200 | – | |
 | 885012006060 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | 330 pF | ±5% | 0603 | 1000 | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | ||
 | 60900213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Jumper | – | – | – | – | – | – | – | – | – | – | – | 1000 MΩ | – | 2.44 | – | – | – | Bag | – | – | – | – | – | – | 3000 | – | – | 1 | Black | Jumper | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °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 | – | – | – | – | – | – | – | – | – | – | 24 | – | – | – | – | – | – | – | 4PPoE (to 900 mA) | – | – | 350 | – | – | – | 10/100/1000BASE-T | 1 | 4PPoE (up to 1000 mA) | No | -40 °C up to +105 °C | 1500 | SMT | 350 | – | ||
| 750320145 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Forward Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 150060YS75000 | SPEC | |
| 742792641 | SPEC | |
| 744272251 | SPEC | |
| 744325550 | SPEC | |
| 74435573300 | SPEC | |
| 768775322 | SPEC | – |
| 885012006060 | SPEC | |
| 60900213421 | SPEC | – |
| 7490220122 | SPEC | |
| 750320145 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | C | Tol. C | Size | Q (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | IR (mA) | ISAT (A) | LR (µH) | Pins (pcs) | Color | Gender | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Winding Style | Number of windings | L1 (µH) | IR (mA) | RDC max. (Ω) | VR (V) | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | VT (V (AC)) | Mount | L (µH) | LSmin. (nH) | Samples |
|---|
