MGDM-75S

Hi-Rel Grade, DC/DC Converter, 75 W

General Characteristics

  • Additional functions : on/off, sense
  • External synchronization range : 500 to 525 KHz
  • Galvanic isolation input/output : 2200 Vdc
  • Nominal power up to : 75 W
  • Protections : input undervoltage lockout, output current limitation, output overvoltage, over temperature
  • Switching frequency : 420 KHz
  • Trim adjustment : 80 to 110 %
  • RoHs

Key Features

  • No load to full load operation
  • No optocoupler for high reliability
  • Single output
  • Soft start
  • Standard quarter brick package

Series Description
The MGDM-75 high input series is a complete line of high density wide input range DC/DC power modules designed for aerospace, military and high-end industrial applications. These modules use a patented fixed switching topology at 500 KHz providing wide input range, low noise characteristics and high power density. Standard models are available with wide input voltage range of 155-480 volts. The series include single output voltage of 3.3, 5, 12, 15, 26 volts.
The MGDM-75 high input series include synchronization, parallelable with load sharing, trim and sense functions.
The synchronization function allows to synchronize more than one converter to one frequency or an external source frequency.
The parallelable function allows increased power with a true N+1 redundancy.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, and is manufactured in a fully automated process to guarantee high quality. The modules are potted with a bicomponent thermal conductive compound 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
MGDS-75-S-26 Active 75 W 155 - 480 Vdc 420 KHz 26 Vdc 2.85 A S 58.3 x 37.2 x 12.7 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 105 °C Aluminium alodined coating 80 to 110 % 2200 Vdc 500 to 525 KHz 90 % 60 Grams IN T, S
MGDS-75-S-B Active 75 W 155 - 480 Vdc 420 KHz 3.3 Vdc 15 A S 58.3 x 37.2 x 12.7 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 105 °C Aluminium alodined coating 80 to 110 % 2200 Vdc 500 to 525 KHz 90 % 60 Grams IN T, S
MGDS-75-S-C Active 75 W 155 - 480 Vdc 420 KHz 5 Vdc 15 A S 58.3 x 37.2 x 12.7 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 105 °C Aluminium alodined coating 80 to 110 % 2200 Vdc 500 to 525 KHz 90 % 60 Grams IN T, S
MGDS-75-S-E Active 75 W 155 - 480 Vdc 420 KHz 12 Vdc 6.25 A S 58.3 x 37.2 x 12.7 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 105 °C Aluminium alodined coating 80 to 110 % 2200 Vdc 500 to 525 KHz 90 % 60 Grams IN T, S
MGDS-75-S-F Active 75 W 155 - 480 Vdc 420 KHz 15 Vdc 5 A S 58.3 x 37.2 x 12.7 mm UVLO, OCP, OVP, OTP, TRIM
SENSE
-40 to 105 °C Aluminium alodined coating 80 to 110 % 2200 Vdc 500 to 525 KHz 90 % 60 Grams IN T, S

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.