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AA25N-048L-050T120 Datasheet(PDF) 1 Page - Astec America, Inc |
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AA25N-048L-050T120 Datasheet(HTML) 1 Page - Astec America, Inc |
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1 / 2 page  Special Features Electrical Specs 25 Watts AA25N • Ideal for telecom/networking applications • High efficiency • Unencapsulated 2.0” x 2.0” x 0.50” package. • Integral heat spreader available • 100°C Baseplate temperature • Enable (on/off) • Thermal protection • 350kHz Switching frequency • Under voltage lockout Input Input range 18-36 Vdc (24 Vdc nominal) 36 - 75Vdc (48Vdc nominal) Input capacitance 2mF typical Input reverse voltage protection Fuse recommended Input surge voltage 100V for 100mS (048L) 50V for 100mS (024L) 36V for 100mS (012L) Input reflected ripple <10mA (P-P) See Note 2 Undervoltage lockout Vin<32V (-048L ONLY) Efficiency 82% typical Output Voltage tolerance Main Output ±1.0% Aux Output ±3.0% Dual Output ±2.0% Line regulation Main Output ±0.1% Aux Output ±0.5% Dual Output ±0.2% Load regulation Main Output ±0.75% Aux Output ±3.0% Dual Output ±0.5% (10% to 100% load) Note 6. Noise/ripple 50mV P-P, Singles 100mVp-p, Dual , Triple Short circuit protection Continuous power cycle Overvoltage protection 120% of V0, Typ Transient response 2% Vo typ; recovery <500msec typ (25% step load change to within 1%Vo) Temperature coefficient ±0.2%/°C Switching frequency 350kHz Control Enable on =2.5 to 5.5Vdc or open circuit off = 0 to 0.8Vdc Ref. to -Vin. TTL compatible Input current (enable OFF) <10ma Output trim Single output models Thermal shutdown 110°C Baseplate temperature (typ) Auto reset Isolation I/O isolation 1500Vdc Isolation resistance 15 x 108 ohms Environmental Total Power: 25 Watts Input Voltages: 24V or 48V No. of Outputs: Single, Dual, Triple Operation case temperature range: -40°C to +100°C Storage temperature: -40°C to +125°C Humidity: 5% to 100% Safety UL UL1950 CAN CAN22.2-950 TUV EN60950 America’s (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 70 W9959_02_DCDC_001-073_73 2/8/02 3:56 PM Page 70 |
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