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| Astec Industry Standard 20 Watts AA20C Total Power: Input Voltages: No. of Outputs: 20 Watts 48V Single Electrical Specs Input Input range Input capacitance No load input power Efficiency 36 to 75 VDC 1.6F typ (48 models) 150mW max 84% typical (5V) Output Voltage tolerance Overall regulation Noise/ripple Short circuit protection Overvoltage protection Transient response 1.0% 2% max 1% (mV P-P) Continuous Power Cycle Zener Clamp (125% of nom) 1 msec typical (50% step load change to within 1%Vo) 0.02 C 400kHz Special Features Temperature Coefficient * * * * * * 20 W, Single output 2:1 Input range Unencapsulated package 1.6" x 2.0" x 0.38 case Replaces AA20B series Industry standard package Switching frequency Isolation I/O isolation Isolation resistance Isolation capacitance 1500 VDC 1 x 109 (Ohms) 220pF Environmental Operating base temperature range: -40C to +105C (full load, no derating) Storage temperature: -55C to +125C Humidity: 5% to 95% (non-condensing) EMI RFI Shielding: Six sided (except 033-M1) MTBF: 361,000 hours (MIL HDBK-217) Safety UL CSA TUV UL1950 Recognition CSA22.2-950 Recognition EN60950 Recognition 28 America's (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 AA20C Ordering Information Input Voltage 36-75 V 36-75 V 36-75 V Output Voltage 3.3V @ 6.0 A 5.0V @ 4.0 A 12V @ 2.0 A Efficiency 79% 84% 87% Model Number AA20C-048L-0335-M1 AA20C-048L-050S AA20C-048L-120S NOTES: Enable Function "1" = negative logic enable (std, without "1 or 4" = no enable) "4" = positive logic enable (std, without "1 or 4" = no enable) Trim Feature "9" = Trim feature (std, without "9" no Trim) Pin Assignments Single Output 1. 2. 3. 4. 5. 6. 7. 8. Note: +Vin -Vin No pin Enable No pin Output 1 COM Trim 0.40 (10.15) 0.15 MIN (3.81) 0.40 (1.01) DIA TYP 2.00 (50.80) 1.80 (45.72) 0.20 (5.08) 5 0.10 (2.54) Pins 0.040 in Dia x 0.15 in min Warranty: 1 yr 0.70 (17.75) .40 (10.16) 6 SINGLE OUTPUT 1.60 (40.64) 1 0.20 (5.08) 0.40 (10.16) 2 3 4 .40 (10.16) 7 .40 (10.16) 8 6 TRIM DOWN 8 8 7 6 ADJ. TRIM Astec Industry Standard TRIM UP 8 7 BOTTOM VIEW ALL DIMENSIONS ARE IN INCHES (mm) Case Material: Metal base/cover Weight: 2.0 oz./56 grams. www.astec.com 29 |
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