V375A36T400BG - 36V 400W Maxi DC-DC Converter | Vicor
Teilenummer: V375A36T400BG ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $295 | $295,00 |
| 10 | $278.5 | $2.785,00 |
| 100 | $262 | $26.200,00 |
| 500 | $245 | $122.500,00 |
| 1.000 | $228 | $228.000,00 |
V375A36T400BG Übersicht
What is an isolated DC-DC converter? An isolated DC-DC converter is a power module that transfers electrical energy between a DC input and one or more DC outputs while providing galvanic isolation through a high-frequency transformer. The isolation barrier (here rated at 425V+ typical) protects downstream circuitry from input-side faults, eliminates ground loops, and allows the output to be referenced to a different potential. Isolated modules like the V375A36T400BG sit above non-isolated point-of-load regulators in the power management taxonomy: DC-DC converter -> isolated DC-DC module -> power supply -> power management IC -> semiconductor.
Key features include a 36V nominal output (programmable to 110% per Vicor Maxi family specification), 400W continuous output power, 250V to 425V input range with 500V surge withstand capability, and ±0.25% load regulation from no-load to full-load. The module achieves 11.11A output current at 36V, enabling direct powering of downstream point-of-load converters, motor drivers, or industrial subsystems. Through-hole mounting on a Full Brick footprint simplifies thermal management and high-current PCB routing.
The V375A36T400BG uses Vicor's proprietary high-frequency zero-voltage-switching (ZVS) topology, which lowers switching losses and allows high power density in the Maxi package. Its control loop, combined with the high-bandwidth isolation transformer, delivers tight output regulation even under large load transients typical of industrial automation and semiconductor test equipment. Internal input surge protection rated at 500V for 100 ms further hardens the module against bus transients.
Typical applications include industrial 380V three-phase derived DC buses, automated test equipment (ATE) requiring 36V intermediate rails, high-voltage battery management systems, traction and auxiliary power in rail/energy systems, and as a front-end converter feeding non-isolated PoL regulators. The wide input range also makes it suitable for 400V-class rectified PFC outputs.
When designing with this module, ensure adequate airflow or cold-plate cooling at 400W. Maintain minimum 425V-rated cabling and follow Vicor recommended input fuse and Y-cap values for EMI compliance. Always check the Maxi datasheet for derating curves above 70C ambient.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für V375A36T400BG – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
V375A36T500BG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
V375A36C400BG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
V375A48T400BG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
V375A24T400BG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
V375A28T400BG
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
V375A36T400BG Grenzwerte & elektrische Eigenschaften
| Topologie | Islated Module DC-DC Converter |
| Anzahl der Ausgänge | 1 |
| Output Voltage (Nominal) | 36 V |
| Ausgangsstrom (max.) | 11.11 A |
| Output Power (Max) | 400 W |
| Eingangsspannungsbereich | 250 V to 425 V |
| Input Surge Withstand | 500 V for 100 ms |
| Programmable Output Range | 10% to 110% of nominal |
| Line/Load Regulation | ±0.25% (no load to full load) |
| Gehäuse | Full Brick (through-hole) |
| Montageart | Through Hole |
| Series | Vicor Maxi |
| Betriebstemperatur | -20°C to +80°C (baseplate, per Maxi family) |
V375A36T400BG Pin-Konfiguration
| Pin 1 | +IN — Positive input voltage (250-425V) |
| Pin 2 | -IN — Negative input voltage (input return) |
| Pin 3 | ON/OFF — Module enable control |
| Pin 4 | TRIM — Output voltage adjustment (10-110% of nominal) |
| Pin 5 | +OUT — Positive output voltage (36V nominal) |
| Pin 6 | -OUT — Negative output voltage (output return) |
Typische Anwendungen
V375A36T400BG ist geeignet für 7 Anwendungs: Industrial 380V Three-Phase DC Bus Power, Automated Test Equipment (ATE) 36V Rail, High-Voltage Battery Management & Energy Storage, Rail and Traction Auxiliary Power, Semiconductor Fabrication Equipment, Front-End Converter for Point-of-Load Regulators, Renewable Energy / Solar Inverter Auxiliary Rails.
Industrial 380V Three-Phase DC Bus Power
The V375A36T400BG accepts a 250V to 425V DC input, making it ideal for industrial three-phase 380V rectified PFC buses that produce a nominal ~537V DC link after PFC. Its 500V surge withstand tolerates transient excursions on this bus. The 36V/11.11A isolated output delivers a clean intermediate rail that feeds downstream point-of-load regulators in factory automation cabinets. Estimated system benefit: replacing a discrete PFC+isolated DC-DC pair with this module reduces PCB area by roughly 60% and eliminates custom magnetics design.
Empfohlen
Automated Test Equipment (ATE) 36V Rail
ATE systems require clean, isolated 36V rails to power pin electronics, mixed-signal ASICs, and FPGA I/O banks. The V375A36T400BG's ±0.25% load regulation and 1.4 kVDC basic isolation provide the deterministic supply needed for repeatable parametric measurements. The Maxi Full Brick package simplifies chassis layout and supports hot-swap replacement during calibration cycles. Compared to a discrete forward converter, this module eliminates a custom transformer design and reduces EMI qualification effort by half.
Empfohlen
High-Voltage Battery Management & Energy Storage
Energy storage systems with 300V-400V battery stacks require isolated step-down conversion to 24V/36V/48V auxiliary rails for cooling fans, contactors, and BMS controllers. The V375A36T400BG's wide input range directly accepts the battery stack voltage and the 500V surge rating protects against inductive transients when contactors open. The 400W continuous rating supports cooling loads of up to 11.11A at 36V, which is sufficient for multiple high-power fans and BMS subrails.
Empfohlen
Rail and Traction Auxiliary Power
Rail and traction applications use 600V-class rectified bus voltages that feed auxiliary inverters and lighting. The V375A36T400BG accepts the 250V-425V sub-rail directly and provides an isolated 36V rail for lighting, door controls, and HVAC subsystems. Its rugged Full Brick construction and proven ZVS topology support long-term reliability under vibration and thermal stress. Estimated benefit: replaces two-stage discrete converters with a single qualified module, reducing BOM count by ~30%.
Empfohlen
Semiconductor Fabrication Equipment
Semiconductor fab tools often operate from 400V DC distribution with multiple isolated 36V rails powering ion pumps, electrostatic chucks, and RF generator sub-systems. The V375A36T400BG's high isolation and tight regulation support the low-noise requirements of process tool power. The Maxi footprint enables standardized power shelves across tool families. Compared to discrete solutions, this module accelerates tool certification because it ships with full Vicor qualification documentation.
Empfohlen
Front-End Converter for Point-of-Load Regulators
Distributed power architectures typically use a 36V or 48V intermediate bus that feeds many non-isolated point-of-load (PoL) regulators near the load. The V375A36T400BG delivers a regulated 36V at 400W to a bus that powers downstream buck or LDO regulators. The 1.4 kVDC isolation barrier breaks ground loops between the high-voltage front end and the low-voltage digital loads. Estimated system benefit: high bus impedance at 36V reduces PoL input current by ~10x compared to a 12V bus, cutting I²R distribution losses dramatically.
Empfohlen
Renewable Energy / Solar Inverter Auxiliary Rails
Solar inverters and wind converters operate from high-voltage DC links derived from PV strings or rectified generators. The V375A36T400BG taps that 600V-class link (after buck) and produces isolated 36V auxiliaries for gate drivers, fans, and controllers. Its 500V surge withstand tolerates inverter switching transients. The Maxi Full Brick package enables straightforward heatsink integration into the inverter chassis.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für V375A36T400BG – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | V375A36T500BG | V375A36C400BG | V375A48T400BG | V375A24T400BG | V375A28T400BG |
|---|---|---|---|---|---|---|
| Package | Full Brick (through-hole) | Full Brick (through-hole) - same | Full Brick (through-hole) - same | Full Brick (through-hole) - same | Full Brick (through-hole) - same | Full Brick (through-hole) - same |
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor | Vicor |
| Output Voltage | 36 V | 36 V | 36 V | 48 V | 24 V | 28 V |
| Output Power | 400 W | 500 W | 400 W | 400 W | 400 W | 400 W |
| Output Current | 11.11 A | 13.89 A | 11.11 A | 8.33 A | 16.67 A | 14.29 A |
| Input Voltage Range | 250-425 V | 250-425 V | 250-425 V | 250-425 V | 250-425 V | 250-425 V |
| Series | Maxi | Maxi | Maxi | Maxi | Maxi | Maxi |
| Topology | Isolated ZVS | Isolated ZVS | Isolated ZVS | Isolated ZVS | Isolated ZVS | Isolated ZVS |
Wichtigste Unterscheidungsmerkmale
- Direct acceptance of 380V three-phase rectified bus (vs. Lower-input 48V DC-DC modules)
- 400W in a single Full Brick module (vs. V375A36T500BG)
- Programmable 10-110% output via TRIM pin (vs. Fixed-output discrete converters)
Designhinweise
At 400W continuous output, the V375A36T400BG baseplate must be kept below 80C. Vicor's Maxi datasheet specifies that at 70C ambient with 200 LFM forced air, the module can deliver full 400W. At higher ambient temperatures or in sealed enclosures, derate to ~70% power or step up to the 500W V375A36T500BG variant for additional thermal headroom. Use a thermal interface material rated for at least 1 W/mK between the baseplate and the heat sink.
Use a PCB with at least 2 oz copper on the input and output layers to carry 11.11A at 36V. Maintain creepage and clearance distances per IEC 60950 / IEC 62368 for the 250-425V input. Provide wide copper pours around the +IN and -IN pins to reduce voltage stress and improve thermal spreading. Place input fusing and Y-capacitors close to the module per Vicor application notes.
Do not exceed 425V continuous input or 500V surge; always include upstream inrush limiting. The ON/OFF pin must be properly pulled to logic levels referenced to -IN, not -OUT. The TRIM pin should not be left floating if precise output voltage is required - tie it to a defined voltage through a resistor divider. Always check the latest Maxi datasheet revision for the exact pinout and option code meanings before PCB layout.
Route the input return (-IN) and output return (-OUT) as separate, isolated copper regions to maintain the isolation barrier and avoid ground bounce. Keep high-current paths short and use multiple vias to inner layers to drop current density. Place sense lines for the output voltage at the load-side of the output capacitor, not directly at the module pins, to avoid IR-drop errors in the regulation loop.
