DC/DC-Converters
145E-29-SD – DC/DC step-down converter 48 VDC to 29 VDC by Demke Electronic

145E-29-SD | DC/DC step-down converter 48 VDC to 29 VDC, 250 W

DC-Converter 145E-29-SD

SKU: 145.008
BTO – build to order / manufactured on request
Lifecycle: BTO – Built to order

The 145E-29-SD by Demke Electronic is a non-isolated DC/DC step-down converter for a nominal input voltage of 48 VDC. It operates across an input voltage range of 32 to 100 VDC and delivers 29 VDC at up to 8.50 A, equivalent to 250 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 Vin32…100 VDC
Output voltage Vout29 VDC
Output current Iout8.5 A
Output power Pout250 W
Efficiencyup to 97 %
Technical Documentation
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Product Description: DC-Converter 145E-29-SD

Ultra compact, lightweight and potted DC/DC converter with 166gr and 250W power at 29V and 8.5A short circuit current. Wide range input from 32VDC to 100VDC allows applications from 48VDC, 80VDC and even 96VDC. Integrated remote on/off with extra-low current consumption in sleep mode, THT version for PCB integration, adaptable output voltage, adaptable output current, highly integrated, excellent voltage quality due to lowest AC components, first-class and fastest regulation, pass-through frequency at 8KHz. One have to have this thing!

Technical Data: DC-Converter 145E-29-SD

Electrical Specifications

Input voltage Vin32…100 VDC
Nominal input voltage48 VDC
Peak input voltage125 VDC
Max. input current8 A
Recommended input fuse13 A
Output voltage Vout29 VDC
Output current Iout8.5 A
Output power Pout250 W
Efficiencyup to 97 %
Output configurationUnipolar
IsolationNon-isolated
EMI filterInput and output
Switching frequency142 kHz
Max. capacitive loadUnlimited
Control functionSD – Shutdown
Shutdown voltage-0.2…2.8 VDC

Mechanical Specifications

Dimensions77 × 52 × 19 mm
Weight165 g
MountingWall mounting
Connection typeConnector strip

Standards and Certifications

CEEN 55022 < Class AEN 61000-4-2EN 61000-4-3EN 61000-4-4EN 61000-4-5EN 61000-4-6EN 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

Battery-Powered SystemsCable Cars & Mountain RailwaysE-Mobility

Downloads and Documentation

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

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