Astec Industry Standard 9 Amps AEH09R48N Total Power: Input Voltages: No. of Outputs: 250W 48V Single High Efficiency Half Brick Electrical Specs Input Input Range Input Surge Efficiency 36 to 75 VDC 100V /100ms 91%@28V Typ Output Output Regulation (Line, load, temp) Ripple Noise <0.5% 200mV pp max 240mV pp max Remote sense Transient Response +/-10% of Vo 25% Ionom step from 50%Ionom. 3%Vo max, 500µs (di/dt =0.1A/µs) Special Features • High efficiency (91% Typical) • Industry standard package 2.4" x 2.28" x 0.5" • Remote sense compensation • Basic insulation • No load requirement Overvoltage Protection 32.2V to 39.2V (Latch) Current Limit 9.9A to 12.6A (Auto-recovery) Overtemperature Protection Auto-recovery Switching Frequency 250kHz Control Voltage Adjust Enable 80 to 110% Positive & negative enable options Thermal Derating Environmental The module can deliver up to full power at 50°C ambient, Vin: 48V, with 0.5m/sec forced air. Operating Ambient Temp: -40°C to +70°C Overtemperature protection MTBF: 2 million hours Safety UL, CSA , TUV REV02: Oct. 2004 1 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 AMERICA EUROPE ASIA 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698 Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone: 44 (1384) 842-211 Facsimile: 44 (1384) 843-355 Units 2111-2116, Level 21 Tower1, Metroplaza 223, Hing Fong Road Fwai Fong, New Territories Hong Kong Telephone: 852-2437-9662 Facsimile: 852-2402-4426 AEH09R48N Ordering Information Input Voltage Output Voltage Output Current Efficiency Model Number 48V 28V 9A 91% Typ AEH09R48N NOTES: “N” = Negative logic enable (without “N” = Positive logic enable) Pin Assignments Single Output 1. 2. 3. 4. 5. 6. 7. 8. 9. +Vin CNT Case -Vin +Vo + Sense Trim - Sense - Vo L: Pin length optional, dependent on the device code suffix. 6: 3.8mm, 8: 2.8mm, 7: 5.8mm. Default: 5mm. 1. All specifications subject to change without notice. Mechanical drawings are for reference only. 2. Technical Reference Notes should be consulted for detailed information when available. Astec Industry Standard Notes: REV 02: Oct. 2004 www.astecpower.com 2