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PTC-04244 Series - 4 Pages

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Catalogue excerpts

PTC-04244 SERIES DC/DC CONVERTERS MINIATURE, HIGH DENSITY, SINGLE OUTPUT (UP TO 550W) Applications Military (Airborne, ground-fix, shipboard), Ruggedized, Telecom, Industrial Special Features • Miniature size • High efficiency • Wide input range • Input / Output isolation • Remote sense • External On/Off Inhibit • Fixed switching frequency (250 KHz) • External synchronization capability • Sync. Out 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 70 VDC, per MIL-STD-704A No damage for: MIL-STD-1275A (100V for 50mSec) MIL-STD-704A (80V for 0.1Sec) DC Output: Output range – 3.3V to 270V Output current – max 30A Output power – 500W 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 : Typical 80-85% – (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 50%100% is 30-120mOhm (depending on output voltage). Output back to steady stated within 300-500µSec Turn on Transient Voltage overshoot at during power on is less than 3% nominal voltage 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 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 75Vdc * 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 FILE: PTC-04244, Page 1 of 4 Rev - ;Date 2011-06-15

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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 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 factory for details. * All output...

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FUNCTIONS AND SIGNALS INHIBIT signal The INHIBIT signal is used to turn the power supply ON and OFF. TTL “1”or OPEN – will turn on the power supply. (For normal operation leave the signal not connected.) TTL “0” – will turn off the power supply. SYN IN signal The SYNC IN signal is used to allow the power supply frequency to sync with the system frequency. The system frequency should be 250Khz ± 10Khz. When not connected the power supply will work at 250KHZ SYN OUT signal The SYNC OUT signal is used to sync the system with the power supply frequency. SIGNAL RTN The INPUT SIGNAL RTN is referred...

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OUTLINE DRAWING HEAT DISSIPATION SURFACE Notes 1. 2. 3. 4. 5. *Specifications are subject to change without prior notice by the manufacturer Dimensions are in Inches [mm] Tolerance is: .XX ±0.01 IN .XXX ±0.005 IN Weight: Approx. 725gr (25.5Oz) Mounting holes can be modified – please consult factory. Parasolide 3D module is available for download on site. 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 FILE: PTC-04244, Page 4 of 4 Rev - ;Date 2011-06-15

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