MGDI-254

Industrial Grade, DC/DC Converter, 250 W

General Characteristics

  • Additional functions : on/off, sense
  • External synchronization range : no synchro
  • Galvanic isolation input/output : 1500 Vdc
  • Nominal power up to : 250 W
  • Protections : input undervoltage lockout, output current limitation, output overvoltage, over temperature
  • Switching frequency : 330 KHz
  • Trim adjustment : 80 to 110 %
  • RoHs

Key Features

  • No load to full load operation
  • Single output
  • Soft start
  • Standard quarter brick package

Series Description
The MGDI-254 wide input series is a full family of DC/DC power modules designed for use in distributed power architecture where variable input voltage and transient are prevalent making them ideal particularly for transportation, railways or high-end industrial applications. These modules use a high frequency fixed swiching topology at 330 KHz providing excellent reliability, low noise characteristics and high power density. Standard models are available with wide input voltage range of 9-36 volts. The serie includes single output voltage choice of 12 volts or 15 volts. The MGDI-254 series include trim and sense functions.
All the modules are designed with LC network filters to minimize reflected input current ripple and output voltage ripple. 
The modules have totally independant security functions including input undervoltage lock-out, output overvoltage protection, output current limitation protection, and temperature protection. Additionnally a soft-start function allows current limitation and eliminates inrush current during start-up. 
The design has been carried out with surface mount components, planar transformer and is manufactured in a fully automated process to guarantee high quality. The modules are potted with a bi-component thermal conductive compound and use an insulated metallic substrat to ensure optimum power dissipation under harsh environmental conditions.

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Product Selection

This product selection table includes all available versions. Other references may be offered – see technical datasheets.
For more information, please consult factory.

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Characteristics
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Reference Status Output power Input voltage Max. transient input voltage Switching frequency Output voltage Output current Min. transient input voltage Output Nbr Max power per channel Case dimensions Standard electrical functions Operating case temp. range Case material Max power in drop out operation UVLO range Output voltage trim Isolation voltage Synchronization freq. range Efficiency Weight Synchronization Options RoHS / SnPb
MGDSI-254-H-C Active 250 W 9 - 36 Vdc 40.0 Vdc / 100 ms 330 KHz 5 Vdc 50 A 6.5 Vdc / 1 s S 61 x 39 x 12.9 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 100 °C 80 to 110 % 1500 Vdc 91 % 85 Grams N
MGDSI-254-H-E Active 250 W 9 - 36 Vdc 40.0 Vdc / 100 ms 330 KHz 12 Vdc 20.8 A 6.5 Vdc / 1 s S 61 x 39 x 12.9 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 100 °C 80 to 110 % 1500 Vdc 91 % 85 Grams N
MGDSI-254-H-F Active 250 W 9 - 36 Vdc 40.0 Vdc / 100 ms 330 KHz 15 Vdc 16.7 A 6.5 Vdc / 1 s S 61 x 39 x 12.9 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 100 °C 80 to 110 % 1500 Vdc 91 % 85 Grams N
MGDSI-254-H-I Active 250 W 9 - 36 Vdc 40.0 Vdc / 100 ms 330 KHz 24 Vdc 9.16 A 6.5 Vdc / 1 s S 61 x 39 x 12.9 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 100 °C 80 to 110 % 1500 Vdc 91 % 85 Grams N

Output Nbr: S: Single output, B: Bi-outputs, D: Dual outputs, T: Triple outputs – Dual outputs products can be usable for single output or bi-outputs. Output Nbr E corresponds to a slave module (see DataSheet)
Case dimensions: L x W x H (maximum values in mm)
Standard electrical functions: Case: Case connection, OVLO: Input overvoltage lockout, UVLO: Input under voltage lockout, OCP: Output over current protection level, OPP: Output over power protection, OVP: Output over voltage protection level, SCP: Output short circuit protection, OTP: Over temperature protection, VIF: Pin for Input Current Ripple Reduction, SYNC: Pin for Synchronisation, TRIM: Pin for adjust ouput voltage, ITRIM: Pin for adjustement ouput current limitation, CC: Pin for capacitor charged signal, CD: Pin for capacitor discharged signal, UVLOadj: Pin for level undervoltage lockout adjust, VREF: Pin for output internal voltage reference, PF: Pin for power fail signal, SENSE: Pin for voltage regulation, REV.POL: Reverse polarity protection
Status NPR: Not preferred for new Design
Options: T Screening at start-up -55° C, Y High isolation 3000 Vdc, M On/Off function, S Screening and serialization, F Synchronization function

Technical Documentation
Pin Out
Materials Disclosure Disclaimer
Even though all possible efforts have been made to provide you with the most accurate information, we can not guarantee to its completeness and accuracy due to the fact that the data has been compiled based on the ranges provided and some information that may not have been provided by the subcontractors and raw material suppliers to protect their business proprietary information.