DC/DC-Converters
729L-24-SD – isolated DC/DC converter 14 VDC to 24 VDC by Demke Electronic

729L-24-SD | Galvanically isolated DC/DC buck-boost converter 14 VDC to 24 VDC, 450 W

DC-Converter 729L-24-SD

SKU: 729.003
MOQ – project-based / minimum order quantity possible
Lifecycle: MOQ – Available per project

The 729L-24-SD by Demke Electronic is a galvanically isolated DC/DC buck-boost converter for a nominal input voltage of 14 VDC. It operates across an input voltage range of 9 to 16 VDC and delivers 24 VDC at up to 18.50 A, equivalent to 450 W of output power. Efficiency reaches up to95% 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 Vin9…16 VDC
Output voltage Vout24 VDC
Output current Iout18.5 A
Output power Pout450 W
Efficiencyup to 95 %
Technical Documentation
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Product Description: DC-Converter 729L-24-SD

Galvanically isolated buck-boost DC/DC converter 12V, 24V, 18A with 450W power. The output voltage is 24VDC and is preset. The L-Version with its lower start-up and undervoltage lockout threshold steps up input voltages from 9VDC to 24VDC easily. The galvanically isolated DC-DC converter has been specially developed for automotive engineering and is designed for E13 approval. The output voltage can be customised in a wide range (e.g. from 12V to 90V). The U/I characteristic can also be customised.

Technical Data: DC-Converter 729L-24-SD

Electrical Specifications

Input voltage Vin9…16 VDC
Nominal input voltage14 VDC
Peak input voltage18 VDC
Max. input current50 A
Recommended input fuse70 A
Output voltage Vout24 VDC
Output current Iout18.5 A
Output power Pout450 W
Efficiencyup to 95 %
Output configurationUnipolar
IsolationGalvanically isolated
Insulation strength primary to secondary2100 VDC
Insulation strength primary to case2100 VDC
EMI filterInput and output
Switching frequency130 kHz
Max. capacitive loadUnlimited
Control functionSD – Shutdown
Shutdown voltage-0.2…2.8 VDC

Mechanical Specifications

Dimensions130 × 130 × 28 mm
Weight900 g
MountingWall mounting
Connection typeCable
Cable length300 mm

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 60068-2-27:2009ISO 20653:2013 – IP6KXISO 20653:2013 – IPX9KREACHRoHS

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 parallelvery low input ripple and noisewide input voltage rangefor ambient temperatures from -40 °C to +85 °Cthermal shutdown at +90 °C

Applications

Battery-Powered SystemsBattery Chargers & Charging SystemsE-Mobility

Downloads and Documentation

DatasheetTechnical datasheetSafety instructionsTechnical drawing
We convert power for first-class projects

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