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reference designTPS2373 | Demoboard PMP21318

Texas Instruments TPS2373 | Demoboard PMP21318

Class 8 PoE 12-V, 6-A, powered device (PD) active-clamp forward converter reference design

Overview

TopologyLAN / POE
IC revisionC

Description

This reference design features a Type-4, Class 8, 71-W active clamp forward converter for powered devices (PD) through Power over Ethernet (PoE). The TPS2373-4 PD controller provides detection and classification and also powers up the UCC2897A pulse-width modulation (PWM) controller through its advanced start-up feature.

Features

  • Supports power levels for IEEE802.3bt Type-4
  • Automatic maintain power signature (MPS)
  • Advanced start-up
  • Synchronous rectifiers for high efficiency

Typical applications

  • Server power, 48-V telecom, datacom, and 42-V automotive applications
  • High-efficiency DC-to-DC power supplies

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
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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
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
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)
SamplesAvailability & Sample
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150060YS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow
Simu­lation
Availability
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Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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 °
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Size0603 
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Length1.6 mm
Width0.8 mm
Height0.7 mm
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
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MountSMT 
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74279267
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Size0603 
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Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.3 mm
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Impedance @ 100 MHz60 Ω
Maximum Impedance110 Ω
Maximum Impedance650 MHz 
Rated Current 22000 mA
DC Resistance0.3 Ω
TypeHigh Speed 
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Number of windings1 
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Rated Current500 mA
DC Resistance [1]0.3 Ω
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Operating Temperature -55 °C up to +125 °C
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MountSMT 
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742792641
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Size0603 
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Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.3 mm
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Impedance @ 100 MHz300 Ω
Maximum Impedance450 Ω
Maximum Impedance250 MHz 
Rated Current 22000 mA
DC Resistance0.15 Ω
TypeHigh Current 
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Number of windings1 
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Rated Current2000 mA
DC Resistance [1]0.15 Ω
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Operating Temperature -55 °C up to +125 °C
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MountSMT 
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744272251
SPECWE-SL5 SMT Common Mode Line Filter, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-SL5 SMT Common Mode Line Filter
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Length10 mm
Width8.7 mm
Height6.5 mm
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Impedance @ 100 MHz800 Ω
Maximum Impedance1200 Ω
Maximum Impedance20 MHz 
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DC Resistance0.035 Ω
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Winding Stylesectional 
Number of windings2 
Inductance [1]250 µH
Rated Current2000 mA
DC Resistance [1]0.035 Ω
Rated Voltage80 V
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Operating Temperature -40 °C up to +125 °C
Insulation Test Voltage1000 V (AC)
MountSMT 
Inductance250 µH
Leakage Inductance [min.]1500 nH
–Check availability
885012006057
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance100 pF
Capacitance±5% 
Size0603 
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Rated Voltage50 V
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Operating Temperature -55 °C up to +125 °C
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885012206071
SPECWCAP-CSGP MLCCs 25 V(DC), –, –
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
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Capacitance100 nF
Capacitance±10% 
Size0603 
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Dissipation Factor3.5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Rated Voltage25 V
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Operating Temperature -55 °C up to +125 °C
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885012206083
SPECWCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance1 nF
Capacitance±10% 
Size0603 
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Rated Voltage50 V
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Operating Temperature -55 °C up to +125 °C
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7490220122
SPECWE-LAN LAN Transformer, –, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
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Length17.55 mm
Width16 mm
Height98.8 mm
Pad Dimension13.97 mm
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Type4PPoE (to 900 mA) 
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Inductance [1]350 µH
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Data rate10/100/1000BASE-T 
Ports1 
PoE4PPoE (up to 1000 mA) 
Improved Common Mode RejectionNo 
Operating Temperature -40 °C up to +105 °C
Insulation Test Voltage1500 V (AC)
MountSMT 
Inductance350 µH
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–Check availability
885012206114
SPECWCAP-CSGP MLCCs 100 V(DC), –, –
Simu­lation
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 100 V(DC)
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Capacitance10 nF
Capacitance±10% 
Size0603 
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Rated Voltage100 V
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Operating Temperature -55 °C up to +125 °C
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