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 |
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.
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
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | ISAT,10% (A) | ISAT,30% (A) | IR,40K (A) | Samples | |
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74477730 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 2 | – | – | – | – | – | 1000 | 0.37 | 0.25 | 6000 | 2.2 | 7345 | Standard | 0.25 | 0.31 | 0.2 | |||
7447709470 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | 2 | – | – | – | – | – | 47 | 4.9 | – | 60 | 6.5 | 1210 | Standard | 4.5 | 5.5 | 3.8 | |||
691101710002 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | 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) | – | – | – | – | – | – | – | – | – | – |
Order Code | Datasheet | Simulation | |
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74477730 | SPEC | ||
7447709470 | SPEC | ||
691101710002 | SPEC | – |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) (pcs) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IRP,40K (A) | ISAT (A) | RDC max. (mΩ) | fres (MHz) | Size | Version | ISAT,10% (A) | ISAT,30% (A) | IR,40K (A) | Samples |
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