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50 Amps ALQ50 High Efficiency Quarter Brick Total Power: Input Voltages: No. of Outputs: 132W 48V Single Electrical Specs Input Input Range Input Surge Efficiency 36 to 75 VDC 100V /100ms 3.3V @ 91% (typical) Output Line / Load Regulation Output Current Noise/Ripple1 < 0.3% Vo (typical) up to 50A max (3.3V at 40A max) 40mVPK-PK (typical) Up to 10% of Vo 100mV (typ) deviation 50% to 75% Load change 250s (typ) recovery 130% typ for Vo < 3.3V 125% typ for 3.3V 120% Iout typ (autorecovery) 115C average PCB temperature (autorecovery) 480kHz 540kHz (2.5V output) 1500Vdc Special Features * Industry standard Quarter Brick package 1.48" x 2.30" x 0.38" * Openfrmae low profile construction * High capacitive load start-up * Regulation to zero load * Fixed frequency switching for EMI predictability * Industry Standard Features: Input UVLO with hysteresis, Enable, OCP, OCP, OTP, Output Voltage Trim, Differential Remote Sense * Meets Basic Insulation Remote sense Transient Response Overvoltage Protection Over Current Protection Over Temperature Protection Switching Frequency Isolation Voltage Control Voltage Voltage Trim 10% VO,NOM Postive or Negative Logic options Environmental Operating Ambient Temperature: -40C to +85C Storage Temperature: -40C to +125C MTBF: > 1 million hours Enable Safety UL, cUL 60950 TUV EN60950 1 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211Asia (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 Ordering Information Input Voltage 36V 36V 36V 36V to to to to 75V 75V 75V 75V Output Voltage 3.3V 2.5V 1.8V 1.2V Output Current 40A 50A 50A 50A Efficiency2 Model Number 91% Typ 90% Typ 89% Typ 86% Typ ALQ40F48 (N) ALQ50G48(N) ALQ50Y48 (N) ALQ50K48 (N) OPTIONS: (N) : "N" = designates Negative Logic Enable (default is Positive Enable with no suffix "N" required) Pin Assignments Single Output 1. 2. 3. 4. 5. 6. 7. 8. +Vin Enable (On/Off) -Vin -Vout -Sense Trim +Sense +Vout 2.30 [58.4] 0.36 [9.1] 0.20 [5.0] MIN 0.24 [6.0] MAX [1.5O] 2 PLACES 0.06O 1 1.48 [37.6] 2 3 8 7 6 5 4 0.04O [1.0O] 6 PLACES 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 TA = 25C. 3. All specifications are typical at nominal line, full load and TA = 25C unless otherwise noted. 4. All specifications subject to change without notice. 5. Mechanical drawings are for reference only. Dimensions are in inches [millimeters]. Pin placement tolerance 0.005 [0.127]. Mechanical Tolerance 0.02 [0.5]. = 0.060" for Pins 4&8, the rest are = 0.40". 6. Technical Reference Notes should be consulted for detailed information when available. 7. Warranty 1yr. PIN SIDE DOWN PIN SIDE DOWN 0.15 [3.8] 0.44 0.74 [11.2] 1.04 [18.8] [26.4] C L 2.00 [50.8] SIDE VIEW 0.44 0.59 [11.2] [15.0] 0.74 0.89 [18.9] [22.7] 1.04 [26.5] PIN SIDE UP Astec reserves the right to make changes to the information contained herein without notice and assumes no liability as a result of its use and application. (REV 07: OCTOBER 19, 2004) www.astecpower.com 2 |
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