DC-Converter 257LE-24-SD

Item # 257.003

Key figures

  • ultrawide input voltage range:
    10 ... 35 VDC
  • very high efficiency:
    up to 98%
  • peak input voltage:
    37 VDC
  • output voltage / max. output current:
    24.0 VDC / 12.5 ADC

Applications

This non-isolated DC/DC buck-boost converter is widely used as the DC-Converter 257LE and its 24V output at 12.5A typical short circuit current is used for stabilization of a 24V onboard power grid. The L-Version as 257LE-24-SD is designed to start up at about 9.5VDC and to step up the input voltage between 8V and 35V uncompromising to 24VDC. Its undervoltage lockout is 8VDC typical!
Hence, supercapacitor powered electrical systems can be discharged to very low values or 12V battery systems can be regulated to 24V appropriately.
Customer specific modifications as follows can be realized: 12V output, 13.8V output, 27V output, 36V output up to 55V output.

Product features

non-isolated DC/DC buck-boost converter

robust and climate proof design

excellent thermal characteristics

permanently no-load and short-circuit proof

integrated EMI input and output filter

no power derating

for ambient temperatures between -40°C / +85°C

thermal shutdown at +90°C

CC/CV charging characteristic

Areas of application

  • Wind power
  • Industrial trucks
  • Warehouse management systems
  • Rail transport
  • Electromobility
  • Mountain railways
  • Battery-powered electrical systems
  • Charging converter
  • Universal


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