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| Astec Industry Standard 25 Amps ALO25 High Efficiency 1/8 Brick Total Power: Input Voltages: No. of Outputs: 82W 24V Single Electrical Specs Input Input Range Input Surge Efficiency 18 to 36 VDC 50V /100ms 88%@3.3V Typ Output Line Regulation Load Regulation Output Voltage Setpoint Noise/Ripple Remote sense Transient Response 0.1% 10mV Typ 1% 40mV Typ Up to 10% of Vo 5%Vo (typ) deviation 50% to 75% Load change 100s (typ) recovery time 125% typ 110% nominal output 660kHz typ Special Features * High efficiency (88% Typical) * -40C to +85C Ambient Air Operation * Industry standard package 0.8" x 2.3" x 0.34" * High capacitive load limit on start-up * ON/OFF Enable * Remote sense compensation * Basic insulation * Regulation to zero load * Fixed frequency switching Overvoltage Protection Current Limit Switching Frequency Control Voltage Adjust Enable 90 to 110% Vo TTL compatible (positive & negative enable options) Environmental Ambient air operating temperature range: -40C to +85C Storage temperature: -40C to +125C Overtemperature protection: 115C PCB temperature (Typical) MTBF: > 1 million hours Safety UL,cUL 60950 TUV EN60950 1 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 AMERICAS 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698 EUROPE Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone: 44 (1384) 842-211 Facsimile: 44 (1384) 843-355 ASIA 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 ALO25F24 Ordering Information Input Voltage 18V to 36V Output Voltage 3.3V Output Current 25A Efficiency 88% Typ Model Number ALO25F24(N) - (6)(S) NOTES: Efficiency values taken at nominal input full load condition, 25 oC ambient temperature. OPTIONS "N" = Negative logic enable (without "N" = positive enable) "S" = SMT (default is TH) "6" = 3.7mm pin length option (default pin length is 5mm nominal) Through Hole Pin Assignments + Vin E 2.30 [58.4] Single Output - Vin + Output + Sense 0.80 [20.3]Trim -Sense -Output 1. 2. 3. 4. 5. 6. 7. 8. + Vin Enable - Vin - Vout - Sense Trim + Sense Output Rtn 0.70 [17.8] PIN SIDEDOWN PIN SIDE DOWN 0.32 [8.1] 0.20 [5.0] NOM. 0.40 [10.2] 0.10 [2.5] 0.15 [3.8] 2.00 [50.8] 0.10 [2.5] 0.25 [6.3] Notes: 1. 20 MHz bandwidth. External 10 uF tant. capacitor in parallel with 1 uF ceramic capacitor placed across the output and secondary return ground. 2. Efficiency measurements are typical values taken at full load, nominal line and T A = 25C. 3. All specifications are typical at nominal line, full load and T A = 25C unless otherwise noted. 4. All specifications subject to change without notice. 5. Mechanical drawings are for reference only. Dimensions are in inches [mm]. Pin placement tolerance 0.005 [0.127]. Mechanical Tolerance 0.02 [0.5], recommended surface mount pads (min: 0.080 x 0.112 [2.03 x 2.84] / max: 0092 x 0.124 [2.34 x 3.15]); through hole pin diameter (Pins 4 & 8) = 0.062 [1.57], others = 0.04 [1.0] (6X). 6. Safety approval for 3.3V version is available. 7. Technical Reference Notes should be consulted for detailed information when available. 8. Warranty 1yr. Astec reserves the right to make changes to the information contained herein without notice and assumes no liability as a result of its use or application. (REV02: MARCH 7, 2005) 0.40 [10.1] 0.55 [14.0] 0.70 [17.7] O0.04 [O1.0](6X) PIN SIDE UP PIN SIDE UP O0.06 [O1.6](2X) SIDE VIEW SIDE VIEW Surface Mount 2.30 [58.4] 0.80 [20.3] Astec Industry Standard 0.35 [8.9] PIN SIDE DOWN 0.22 [5.5] 0.07 [1.7] 0.01 [0.4] 0.70 [17.8] 0.40 [10.2] 0.10 [2.5] 0.06 [1.4] 2.19 [55.7] 0.10 [2.5] 0.25 [6.3] 0.40 [10.2] 0.55 [14.0] SIDE VIEW 0.70 [17.8] PIN SIDE UP www.astecpower.com 2 |
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