DC/DC-Converters
257E-24-SD – DC/DC buck-boost converter 24 VDC to 24 VDC by Demke Electronic

257E-24-SD | DC/DC buck-boost converter 24 VDC to 24 VDC, 360 W

DC-Converter 257E-24-SD

SKU: 257.002
MTS – standard product / make to stock
Lifecycle: MTS – Available short-term

The 257E-24-SD by Demke Electronic is a non-isolated DC/DC buck-boost converter for a nominal input voltage of 24 VDC. It operates across an input voltage range of 15 to 35 VDC and delivers 24 VDC at up to 15 A, equivalent to 360 W of output power. Efficiency reaches up to97% at nominal input voltage and full load.

CC/CViConstant-current/constant-voltage control, e.g. for charging applications.Parallel operation / active loadsInput and output EMI filterNo power deratingNo-load and short-circuit proof
Input voltage Vin15…35 VDC
Output voltage Vout24 VDC
Output current Iout15 A
Output power Pout360 W
Efficiencyup to 97 %
Technical Documentation
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Product Description: DC-Converter 257E-24-SD

Short-circuit proof buck-boost charging converter for primary use in supercapacitor-powered autonomous systems with an output-side backup battery. The converter with 24V output and up to 15A short-circuit current is designed to stabilize the 24V onboard power system. Can be supplied with LED on request. Customer-specific DC-DC converters with 12V or 13.8V output are possible at any time.

Technical Data: DC-Converter 257E-24-SD

Electrical Specifications

Input voltage Vin15…35 VDC
Nominal input voltage24 VDC
Peak input voltage37 VDC
Max. input current25 A
Recommended input fuse30 A
Output voltage Vout24 VDC
Output current Iout15 A
Output power Pout360 W
Efficiencyup to 97 %
Output configurationUnipolar
IsolationNon-isolated
EMI filterInput and output
Switching frequency120 kHz
Max. capacitive loadUnlimited
Control functionSD – Shutdown
Shutdown voltage-0.2…2 VDC

Mechanical Specifications

Dimensions90 × 90 × 26 mm
Weight360 g
MountingWall mounting
Connection typeBlade terminals

Standards and Certifications

CEEN 55022 < Class AEN 61000-4-2EN 61000-4-3EN 61000-4-4EN 61000-4-5EN 61000-4-6EN 61000-6-2EN 61000-6-4IEC 60068-2-6:2007IEC 60068-2-27:2009REACHRoHS

Product Features

robust and climate-resistant designexcellent thermal characteristicsfull PU potting for demanding environmental conditionscontinuous no-load and short-circuit proofintegrated EMI input and output filterno power deratingCC/CV charging characteristiciConstant-current/constant-voltage control, e.g. for charging applications.for active loads, can be connected in parallelinternal decoupling diode against reverse currentvery low input ripple and noisewide input voltage rangefor ambient temperatures from -40 °C to +85 °Cthermal shutdown at +90 °C

Applications

AGV / AMR SystemsBattery-Powered SystemsConstruction & Off-Highway VehiclesDrones & UAVsE-MobilityIndustrial & Custom ApplicationsIntralogistics & Warehouse AutomationMaterial Handling VehiclesRobotics & Automation

Downloads and Documentation

DatasheetTechnical datasheetSafety instructionsTechnical drawingCharacteristic curves
We convert power for first-class projects

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