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PTC-07325 Series - 4 Pages

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Catalogue excerpts

PTC-07325 SERIES DC/DC CONVERTERS MINIATURE, HIGH DENSITY SINGLE OUTPUT (UP TO 500W) Applications Military (Airborne, ground-fix, shipboard), Ruggedized, Telecom, Industrial Special Features • Miniature size • High efficiency • Wide input range • Very Low output impedance (Typical: 50mΩ @ 28V output) • Input / Output isolation • Remote sense • More than 40db ripple reduction • Parallel connection with current share • External On/Off Inhibit • Fixed switching frequency (250 KHz) • External synchronization capability • EMI/RFI filters included • Indefinite short circuit protection with auto-recovery • Over-voltage shutdown with auto-recovery • Over temperature shutdown with auto-recovery DC Input: DC Input range: 18 to 48 VDC, per MIL-STD-704E No damage for: MIL-STD-1275A (100V for 50mSec) MIL-STD-704A (80V for 0.1Sec) DC Output: Output range – 3.3V to 50V Output power – 450W (peak 500W) Output current – max 21A Isolation 200V between Input and Output 200V between Input and Case 100V between Output and Case Line/Load regulation: Less than 1% (no load to full load, –55°C to +85°C) Efficiency : 76-86% - Typical 85% (full load, room temperature) Ripple and Noise: Less than 50mVp-p, typical (max. 1%) without external capacitance. When connected to system capacitance ripple drops significantly Load Transient Overshoot and Undershoot Output resistance at load change of 10%100% is 20-50 mΩ (depending on output voltage). Output back to steady stated within 50-100µSec Ripple Reduction More than 40db ripple reduction between input and output. Output • Electronic over voltage protection – Internal control protects unit (no damage) 10% above nominal voltage • Passive tranzorb on outputs – 20% above nominal voltage • Current limiting – Continuous protection (10-30% above maximum current) for unlimited time (Hiccup) General • Over temperature protection: Shutdown at base plate temperature of +105°C (±5°C) Automatic recovery at base plate temperature lower than +95°C (±5°C) Electrical Specifications Turn on Transient No turn on transient Protections* Input • Inrush Current Limiter – peak value of 5 x Iin for less than 50µSec • Under voltage protection – unit protects itself (no damage) below 16.5Vdc • Over voltage protection – unit protects itself (no damage) above 52Vdc * Thresholds and protections can be modified / removed – please consult factory. Production & Trading Company AG Gewerbestrasse 9, P.O. Box, CH-6330 Cham, Switzerland phone 041 740 4554, fax 041 740 4664, http://www.ptcag.ch, e-mail: ptc@bluewin.ch

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Environmental (Design to meet MIL-STD-810F) Temperature: Operating: –55°C to +85°C (base plate) Storage: –55°C to +125°C Humidity: Method 507.4 - Up to 95%. Altitude: Method 500.4, Procedure I & II, 40,000 ft. and 70,000 ft. Operational Vibration and Shock: Shock - Saw-tooth, 20g peak, 11mS. Vibration - Figure 514.5C-17. General minimum integrity exposure. (1 hour per axis) Salt Fog: Method 509-4 Reliability 150’000 hours, calculated per MIL-STD-217F at +85°C base plate, Ground fixed Environmental Stress Screening (ESS) Including# random vibration and thermal cycles is also available. Please consult...

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Typical connection Signa R~N SYN IN INHIBIT IN INHIBITOUT/ Parallel connection \SignalRTN SYN IN Inhibit out INHIBIT / Input SYN IN Inhibit out INHIBIT \ Production & Trading Company AG Gewerbestrasse 9, P.O. Box, CH-6330 Cham, Switzerland

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COOLING SURFACE AIRBORN CONNECTOR HEAT DISSIPATION SURFACE 4. Mounting holes can be modified - please consult factory. 5. Parasolide 3D module is available *Specifications are subject to change without prior notice by the manufacturer for download on site. Production & Trading Company AG Gewerbestrasse 9, P.O. Box, CH-6330 Cham, Switzerland

 Open the catalogue to page 4

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