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Texas Instruments TPS232758 | Demoboard TPS232758EVM-080
IEEE 802.3at PoE PD with no-opto sync flyback DC-DC controller
Overview
| Topology | Flyback Converter |
| Input voltage | 37-57 V |
| Output 1 | 5 V / 2.3 A |
Description
The TPS23758 device combines a Power over Ethernet (PoE) powered device (PD) interface, a 150-V switching power FET, and a current-mode DC-DC controller optimized for flyback topology. The high level of integration along with primary side regulation (PSR), spread spectrum frequency dithering (SSFD), and advanced startup makes the TPS23758 an ideal solution for size-constrained applications. The PoE implementation supports the IEEE 802.3at standard as a 13-W, Type 1 PD.
Features
- IEEE802.3at Type 1 compliant PoE PD
- Class 0 5-V and 2.3-A primary side regulated CCM flyback
- Advanced startup
- Programmable slew rate and frequency dithering for EMI reduction
- Primary-side adapter priority control
Typical applications
- IP cameras, Access points, IP phones, Wireless LAN- wireless access points
- Point-of-sale, Barcode readers
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.(°) | VIN | VOut1(V) | IOut1(A) | Vaux(V) | n | ISAT(A) | LS(nH) | VT(V (AC)) | Size | Pins | Color | Gender | Packaging | Winding Style | Number of windings | L(µH) | Zmax(Ω) | IR(mA) | RDC max.(Ω) | VR(V) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | Luminous Intensity [typ.]120 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | Size0603 | – | – | – | PackagingTape and Reel | – | – | – | – | – | – | – | |||
 | WE-SL2 SMT Common Mode Line Filter, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SL2 SMT Common Mode Line Filter | – | – | – | – | – | – | – | – | – | – | – | – | – | Leakage Inductance90 nH | Insulation Test Voltage500 V (AC) | – | Pins4 | – | – | – | Winding Stylebifilar | Number of windings2 | Inductance1000 µH | Maximum Impedance6000 Ω | Rated Current800 mA | DC Resistance0.207 Ω | Rated Voltage80 V | ||||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins1 | ColorBlack | GenderJumper | PackagingBag | – | – | – | – | Rated Current3000 mA | – | – | |||
 | WE-FLYTI Flyback Transformers, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FLYTI Flyback Transformers | – | – | – | – | – | – | – | Input Voltage 36 - 57 V (DC) | Output Voltage 15 V | Output Current 12.4 A | Auxiliary Voltage10.5 V | Turns Ratio6:1:1:2.25 | Saturation Current1.5 A | Leakage Inductance1000 nH | Insulation Test Voltage1500 V (AC) | SizeEPQ13 | – | – | – | – | – | – | Inductance150 µH | – | – | – | – |