Astec Industry Standard 25 Amps Total Power: Input Voltages: No. of Outputs: 60W 48 Single ALD25 Electrical Specs Input Input Range 36 to 75 VDC Input Surge 100V /100ms Efficiency 88%@1.8V (Typical) Output Line Regulation ±0.1%VO Load Regulation ±0.1%VO Noise/Ripple1 35mV Typ Remote sense Up to 10% of Vo Transient Response 3%Vo (typ) deviation 50% to 75% Load change 80µs settling time (typ) Overvoltage Protection 125% VO typ (autorecovery) Over Current protection 115% IO typ (autorecovery) Over Temperature Protection 115ºC average PCB temperature (autorecovery) Switching Frequency Fixed Frequency Isolation Voltage 1500 Vdc Special Features • • • • • • • • • High Efficiency -40°C to +85°C Ambient Air Operation 1.30” x 0.9" x 0.35" TH or SMT package High capacitive load limit on start-up Industry standard feature sets: UVLO, OVP, OCP, OTP, On/Off Enable, Remote Sense, Output Trim Basic Insulation Regulation to zero load Fixed frequency switching EU Directive 2002/95/EC compliant for RoHS Control Voltage Adjust Enable 90 to 110% Vo TTL compatible (Positive or Negative enable options) Environmental Ambient air operating temperature range: -40°C to +85°C Storage temperature: -40°C to +125°C Overtemperature protection: 115°C PCB temperature (Typical) MTBF: > 1 million hours Safety UL,cUL 60950-1 TUV EN60950-1 1 North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662 AMERICAS 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 ALD25 Ordering Information Input Voltage Output Voltage Output Current Efficiency2 Model Number 36V 36V 36V 36V 36V 36V 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 12A 18A 20A 25A 25A 25A 91% Typ 90% Typ 89% Typ 88% Typ 85% Typ 83% Typ ALD12A48(N) - (6)(S)(L) ALD18F48(N) - (6)(S)(L) ALD20G48(N)- (6)(S)(L) ALD25Y48(N) - (6)(S)(L) ALD25M48(N)- (6)(S)(L) ALD25K48(N) - (6)(S)(L) to to to to to to 75V 75V 75V 75V 75V 75V NOTES: Efficiency values taken at nominal input full load condition, 25oC ambient temperature. OPTIONS (N) : "N" (6) : “-6” (S) : “-S” (L) : “L” = designates Negatve Logic Enable (default is Positive Enable with no suffix “N” required) = 3.7mm nominal pin length (default is 5mm nominal pin length with no suffix “-6” required) = Surface Mount Termination (default is thru hole termination with no sufix “-S required) = RoHS compliant (RoHS 6) / “Blank” - RoHS compliant with Lead (PB) in solder exemption (RoHS 5) TH Termination Pin Assignments 1.30 [33.0] Pin 1 Pin 8 Single Output 1. 2. 3. 4. 5. 6. 7. 8. 0.90 [22.9] + Vin Enable - Vin - Vout - Sense Trim + Sense +Vout PIN LENGTH 0.35 [8.8] “-6” Option: [5.5] 0.10 [2.5] 1.10 [27.9] 0.30 [7.6] 0.60 [15.2] 0.EW 062 Ø[1.57Ø](2 SIDE VI 0.15 [3.8] PIN SIDE UP PIN SIDE UP SMT Termination 1.30 [33.0] PIN SIDE DOW N 0.06 [1.4] 0.15 [3.8] 0.10 [2.5] 7. Warranty 1 yr. 0.15 [3.8] 0.15 [3.8] 0.30 [7.6] 0.45 [11.4] 0.60 [15.2] Astec Industry Standard 0.90 [22.9] 1.10 [27.9] 0.30 [7.6] 0.30 [7.6] www.astecpower.com 0.15 [3.8] 0.30 [7.6] 0.45 0.60 [11.4] [15.2] 5. Technical reference Notes should be consulted for detailed information when available. 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. (REV08: MARCH 05, 2006) 0.10 [2.5] 0.15 [3.8] 3. All specifications are typical at nominal line, full load and TA = 25 °C unless otherwise noted. 6. All specifications subject to change without notice. 0.137 [3.5] MIN 0.152 [3.9] MAX 0.03 [0.8] 2. Efficiency measurements taken at full load, nominal line and TA = 25 °C. 4. Mechanical drawings are for reference only. Dimensions are in inches [millimeters]. Mechanical tolerance: ± 0.002[0.5], recommended surface mount pads: ∅ = 0.11[2.79] ± 0.005 [0.13]; through hole pin diameter (Pins 4 & 8) ∅ = 0.062 [1.57], others ∅ = 0.04 [1.0] (6X). A Std Pin Length: 0.189 [4.8] MIN 0.205 [5.2] MAX 0.19 [4.8] 0.22A See 0.04Ø [1.0Ø](6X) Notes: 1. Measured at 20MHz bandwidth with external 10 µF tant. capacitor in parallel with 0.1 µF ceramic capacitor placed across +Vout and -Vout; 33µF e-cap or equivalent placed across +Vin and -Vin. PIN SIDE DOW N PIN SIDE UP 2