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Analog Devices LTC7103EUHE | Demoboard EVAL-CN0509-EBZ
105V, 2.3A Low EMI Synchronous Step-Down Regulator
Overview
| Topology | Other Topology |
Description
CN0509 is a wide input range (5V to 100V) USB charger capable of providing up to 2A at 5V from a wide range of DC sources including solar panels, fully charged or half-discharged car batteries, -48V telecom backup supplies, random stacks of alkaline cells, treadmill motors hacked to run as generators, wind turbines, etc. using the combination of wide input LTC7103 buck converter and an isolated flyback converter LT8302. The circuit accepts DC voltage from 5V to 100V and produce an isolated 5V supply via a standard USB connector. The outer case of many cell phones and other portable electronics are often electrically connected to USB ground. As such, isolation is necessary in situations in which the power source’s relationship to Earth ground is unknown.The circuit will survive up to 100V reverse connection to a power source with a green LED indicating correct input polarity and red led otherwise.
Features
- Allows wide input range of 5V to 100V
- Provides isolated and regulated 5V output
- Provides up to 2A output current
- Two USB output ports for convenience
Typical applications
- Battery Chargers
- CC/CV Supplies
- Automotive and Military Systems, Industrial, Avionics and Heavy Equipment
- Telecommunication Systems
- Medical Instruments
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR(V (DC)) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | Operating Temperature | Q(%) | ISAT,10%(A) | ISAT,30%(A) | IR,40K(A) | IRP,40K(A) | RDC max.(mΩ) | fres(MHz) | Version | Interface Type | Gender | Mount | IR(A) | Working Voltage(V (AC)) | VIN | VOut1(V) | IOut1(A) | Vaux(V) | L(µH) | Qmin. | n | IR(A) | ISAT(A) | LS(µH) | VT(V (AC)) | Size | IC Reference | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | Length12 mm | Width12 mm | Height10 mm | – | – | Operating Temperature -40 °C up to +125 °C | – | Saturation Current @ 10%4.5 A | Saturation Current @ 30%5.5 A | Rated Current3.8 A | Performance Rated Current4.9 A | DC Resistance60 mΩ | Self Resonant Frequency6.5 MHz | VersionStandard | – | – | MountSMT | Rated Current3.8 A | – | – | – | – | – | Inductance47 µH | – | – | – | – | – | – | Size1210 | – | ||||
 | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | – | – | Length10 mm | – | Height10 mm | – | PackagingBox | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | MountTHT | Rated Current17.5 A | Working Voltage250 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | |||
 | WR-USB Standard Connectors, 8, USB 2.0 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Standard Connectors | Pins8 | – | – | TypeStacked Horizontal | – | – | – | – | – | Insulation Resistance1000 MΩ | – | – | – | – | – | PackagingTray | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | Interface TypeType A | GenderReceptacle | MountTHT | Rated Current1.5 A | Working Voltage30 V (AC) | – | – | – | – | – | – | – | Rated Current1.5 A | – | – | – | – | – | |||
 | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | – | – | – | – | Length13.46 mm | Width17.75 mm | Height12.7 mm | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | Input Voltage 10 - 40 V (DC) | Output Voltage 15 V | Output Current 13 A | Auxiliary Voltage8 V | Inductance9.07 µH | – | Turns Ratio3:1:1.75 | – | Saturation Current8 A | Leakage Inductance0.25 µH | Insulation Test Voltage1500 V (AC) | SizeEP13 | IC ReferenceLT3575 & LT3748 | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance1 nF | Capacitance±10% | Rated Voltage50 V (DC) | 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 | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Q-Factor [1]600 | – | – | – | – | – | Size0603 | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance220 pF | Capacitance±5% | Rated Voltage50 V (DC) | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length2 mm | Width1.25 mm | Height0.6 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size0805 | – | |||||
| WCAP-CSGP MLCCs 100 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage100 V (DC) | 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 | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Q-Factor [1]600 | – | – | – | – | – | Size0603 | – | |||||
 | WCAP-CSMH Mid and High Voltage, –, – | Downloads8 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSMH Mid and High Voltage | – | – | – | – | – | Capacitance4.7 nF | Capacitance±10% | Rated Voltage200 V (DC) | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length4.5 mm | Width3.2 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | Q-Factor600 % | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size1812 | – | |||
| WCAP-CSGP MLCCs 100 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage100 V (DC) | Dissipation Factor5 % | Insulation Resistance1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Q-Factor [1]600 | – | – | – | – | – | Size0603 | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance10 µF | Capacitance±10% | Rated Voltage50 V (DC) | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2.5 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Q-Factor [1]600 | – | – | – | – | – | Size1210 | – |