Gaia Converter has announced the MGDS-500-Y Series, a new line of high-performance half-brick isolated DC/DC converters. These 500W converters are engineered for critical applications in avionics, naval, and other demanding environments, offering robust performance and reliability.
Key features
- Wide Input Voltage Range: 90 Vdc to 210 Vdc (250Vdc transient), ideal for systems with fluctuating power sources.
- Nominal Outputs:
- MGDS-500-Y-I: 24Vdc, 20.8 A
- MGDS-500-Y-J: 28Vdc, 17.8 A
- High Efficiency: Up to 90%, reducing heat dissipation and enhancing energy efficiency.
- Compact Design: Half-brick format measuring just 2.4" x 2.3" x 0.5" (64 x 61 x 12.7 mm) with four 3.1 mm fixing holes for easy mounting.
- Wide Temperature Range:
- Standard: -40°C to +105°C case @ full load.
- Optional: /T (-55°C) and /S (screening).
Advanced Protections:
- Input Undervoltage Lockout (UVLO):Prevents operation under unsafe input conditions.
- UVLO Turn-on: 80 Vdc (typ.)
- UVLO Turn-off: 75 Vdc (typ.)
- Output Overvoltage Protection (OVP): Limiter at 120% of the nominal output voltage.
- Output Current Protection: Hiccup mode ensures safe operation under overcurrent scenarios.
- Over Temperature Protection (OTP): Safeguards against thermal issues.
- Output Voltage Trim Range: Adjustable from 80% to 110% of nominal.
- Output Current Sense: Facilitates module parallelization for higher power applications.
Performance Specifications:
- Line Regulation: ±0.5%
- Load Regulation: ±0.5%
- Thermal Regulation: ±1.0%
- Output Ripple Voltage: 2.5%
- Switching Frequency: Fixed at 250 kHz, with synchronization capability (105% to 115% range).
- Set Point Accuracy: ±2%
Key applications
- Designed for military and aerospace standards:
- Avionic: Mil-STD-704 compliance.
- Naval: Mil-STD-1399-390, section 390 compliance
- RoHS compliant, aligning with environmental standards
