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Texas Instruments TPS40210DGQR | Demoboard PMP30104
Multiplied SEPIC Constant Current Capacitor Charger (15Vin to 400V/@ 80mA) Reference Design
Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 15 V |
| Output 1 | 400 V / 0.08 A |
| Output 2 | 420 V / 0.08 A |
| IC revision | B |
Description
A SEPIC converter is used to charge a load capacitor (up to 15000uF) up to 400V/420V (selectable). The input voltage range is 15V +/-10% and the constant output charging current 80mA. The multiplied SEPIC topology has several advantages compared to Boost + charge pump mainly thanks to reduce peak and RMS currents in the multiplier of the SEPIC.
Features
Remarks: Schematic and BOM is added with Test procedure PDF
huge ratio possible by multiplied single-stage SEPIC (15Vin to 420Vout)No spikes on switch-nodes compared to flyback solutionGood efficiency curve between 50Vout and 420Vout in the range of 80% to 87%Two active loops: CV and CC avoid overvoltage in case of load disconnection
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | IR (A) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74477730 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | WE-PD SMT Power Inductor | 2 | – | – | – | – | – | 1000 | 0.37 | 0.25 | 6000 | 2.2 | 7345 | Standard | 0.2 | ||
| 7447709470 | SPEC | 8 files | WE-PD SMT Power Inductor | 2 | – | – | – | – | – | 47 | 4.9 | – | 60 | 6.5 | 1210 | Standard | 3.8 | ||
 | 691101710002 | SPEC | – | 6 files | WR-TBL Series 101 - 5.00 mm Horizontal Entry Modular | 2 | Wire Protector | PCB | Yes | Horizontal | 26 to 14 (AWG) 0.5 to 2.5 (mm²) | – | – | – | – | – | – | – | 16 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 74477730 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 7447709470 | SPEC | |
| 691101710002 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | IR (A) | Samples |
|---|