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Texas Instruments TPS40210DGQR | Demoboard PMP30162
Fast Capacitor Charger with SEPIC Topology (42V to 52Vin, 160V/180Vout @ 900mA) Reference Design
Overview
| Topology | SEPIC Buck-Boost Topology |
| Input voltage | 42-52 V |
| Output 1 | 160 V / 0.9 A |
| Output 2 | 180 V / 0.9 A |
| IC revision | B |
Description
A SEPIC converter is used to fast charge a load capacitor up to 160V/180V (selectable). The input voltage range is 47V +/-10% and the constant output charging current 900mA. The SEPIC topology has the advantage to Boost or Buck the output voltage, needed by capacitor charging, since they start at zero volt (short circuit).
Features
Remarks: Schematic and BOM is added with Test procedure PDF
No spikes on the drain of main FET, thanks to SEPIC topologyGood efficiency curve (>91%) at full load and with output voltage >80VTwo active loops: CV and CC stabilize the output voltage in all conditions, during charging and in steady stateThe output voltage can be switched between 160V and 180V on the fly
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | IR,40K(A) | RDC max.(mΩ) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Pins2 | – | – | – | – | Inductance470 µH | Performance Rated Current1.45 A | Saturation Current @ 10%1.5 A | Saturation Current @ 30%1.85 A | – | Self Resonant Frequency1.8 MHz | – | Rated Current1.4 A | DC Resistance560 mΩ | Size1210 | VersionStandard | ||||
 | WE-HCI SMT Flat Wire High Current Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Pins2 | – | – | – | – | Inductance82 µH | Performance Rated Current6.6 A | Saturation Current @ 10%7.75 A | Saturation Current @ 30%8.5 A | DC Resistance30.4 mΩ | Self Resonant Frequency4.4 MHz | MaterialMnZn | – | DC Resistance33.44 mΩ | Size2212 | VersionSMT | ||||
 | WR-TBL Series 101 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 101 - 5.00 mm Horizontal Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 26 to 14 (AWG) 0.5 to 2.5 (mm²) | – | – | – | – | – | – | – | – | – | – | – |