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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
- Video and VoIP Telephones, Access Points, Security Cameras, Pass-through System
- Redundant Power Feeds or Power Sharing
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) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | ISAT (A) | LR (µH) | 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) | Pins (Value) (pcs) | Color | Gender | IR (mA) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 150060YS75000 | SPEC | 25 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 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +85 °C | – | SMT | – | – | – | – | – | – | Tape and Reel | ||
 | 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 | – | – | – | – | – | – | – | – | 300 | 450 | 250 MHz | 2000 | 0.15 | High Current | – | 1 | – | 2000 | 0.15 | – | – | – | – | – | -55 °C up to +125 °C | – | SMT | – | – | – | – | – | 1500 | – | ||
 | 744272251 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-SL5 SMT Common Mode Line Filter | – | – | – | – | – | – | – | – | – | – | – | – | – | 10 | 8.7 | 6.5 | – | – | – | – | – | – | – | – | – | – | 970 | – | – | 0.035 | – | sectional | 2 | 250 | 2000 | 0.035 | 80 | – | – | – | – | – | 1000 | SMT | 250 | 1500 | 4 | – | – | 2000 | – | ||
 | 744325550 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 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 | – | – | – | – | 0.01133 | – | – | 9.5 | – | – | – | – | – | – | – | – | -40 °C up to +150 °C | – | SMT | 5.5 | – | 2 | – | – | – | – | ||
| 74435573300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 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 | – | – | – | – | 23.44 | – | – | 20.5 | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 33 | – | 2 | – | – | – | – | ||
 | 768775322 | SPEC | – | 8 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 | – | 0.2 | – | – | – | – | – | 7.2 | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | SMT | 2200 | – | – | – | – | 150 | – | |
 | 885012006060 | SPEC | 8 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 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | 7" Tape & Reel | ||
 | 60900213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point | – | – | – | – | – | – | – | – | – | – | – | 1000 MΩ | – | 2.44 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | – | 1 | Black | Jumper | 3000 | Bag | |
 | 7490220122 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-LAN LAN Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | 17.55 | 16 | 98.8 | 13.97 | – | – | – | – | – | – | – | – | – | – | – | – | – | 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 | – | 24 | – | – | – | – | ||
| 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 PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 74435573300 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 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) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | ISAT (A) | LR (µH) | 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) | Pins (Value) (pcs) | Color | Gender | IR (mA) | Packaging | Samples |
|---|