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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 (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Operating Temperature | Q | IRP,40K (A) | RDC max. (mΩ) | fres (MHz) | Version | Interface Type | Gender | Mount | Working Voltage (V (AC)) | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | L (µH) | n | IR (A) | ISAT (A) | LS (µH) | VT (V (AC)) | Size | IC Reference | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7447709470 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 2 | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | 12 | 12 | 10 | – | – | -40 °C up to +125 °C | – | 4.9 | 60 | 6.5 | Standard | – | – | SMT | – | – | – | – | – | 47 | – | – | – | – | – | 1210 | – | ||
 | 691102710002 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | 2 | Wire Protector | PCB | Yes | Horizontal | 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | – | – | – | – | – | – | 10 | – | 10 | – | Box | -40 °C up to +105 °C | – | – | – | – | – | – | – | THT | 250 | – | – | – | – | – | – | – | – | – | – | – | – | |
 | 61400826021 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-COM USB 2.0 Type A Horizontal Dual Stacked | 8 | USB 2.0 | – | – | Stacked Horizontal | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | Tray | -40 °C up to +105 °C | – | – | – | – | – | Type A | Receptacle | THT | 30 | – | – | – | – | – | – | 1.5 | – | – | – | – | – | |
 | 750311564 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | 13.46 | 17.75 | 12.7 | – | – | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | 10 - 40 V (DC) | 5 | 3 | 8 | 9.07 | 3:1:1.75 | – | 8 | 0.25 | 1500 | EP13 | LT3575 & LT3748 | ||
 | 885012206083 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 1 nF | ±10% | 50 | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0603 | – | ||
| 885012007059 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 220 pF | ±5% | 50 | – | – | 10 GΩ | NP0 Class I | 2 | 1.25 | 0.6 | 0.5 | 7" Tape & Reel | -55 °C up to +125 °C | 1000 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0805 | – | ||
| 885012206114 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | – | – | 10 nF | ±10% | 100 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0603 | – | ||
 | 885342211001 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSMH Mid and High Voltage | – | – | – | – | – | – | 4.7 nF | ±10% | 200 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 4.5 | 3.2 | 1.25 | 0.5 | 7" Tape & Reel | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1812 | – | ||
| 885012206120 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 100 V(DC) | – | – | – | – | – | – | 100 nF | ±10% | 100 | -55 °C up to +125 °C | 5 | 1 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0603 | – | ||
| 885012209073 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 10 µF | ±10% | 50 | -55 °C up to +125 °C | 10 | 0.01 GΩ | X7R Class II | 3.2 | 2.5 | 2.5 | 0.6 | 7" Tape & Reel | -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1210 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7447709470 | SPEC | |
| 691102710002 | SPEC | – |
| 61400826021 | SPEC | – |
| 750311564 | SPEC | |
| 885012206083 | SPEC | |
| 885012007059 | SPEC | |
| 885012206114 | SPEC | |
| 885342211001 | SPEC | |
| 885012206120 | SPEC | |
| 885012209073 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Operating Temperature | Q | IRP,40K (A) | RDC max. (mΩ) | fres (MHz) | Version | Interface Type | Gender | Mount | Working Voltage (V (AC)) | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | L (µH) | n | IR (A) | ISAT (A) | LS (µH) | VT (V (AC)) | Size | IC Reference | Samples |
|---|