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Astec Industry Standard
25 Amps
ALD25
Total Power: Input Voltages: No. of Outputs:
60W 48 Single
Electrical Specs
Input
Input Range Input Surge Efficiency 36 to 75 VDC 100V /100ms 88%@1.8V (Typical)
Output
Line Regulation Load Regulation Noise/Ripple1 Remote sense Transient Response 0.1%VO 0.1%VO 35mV Typ Up to 10% of Vo 3%Vo (typ) deviation 50% to 75% Load change 80s settling time (typ) 125% VO typ (autorecovery) 115% IO typ (autorecovery) 115C average PCB temperature (autorecovery) Fixed Frequency 1500 Vdc
Special Features
* * * * * High Efficiency -40C to +85C 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 Overvoltage Protection Over Current protection Over Temperature Protection Switching Frequency Isolation Voltage
* * * *
Control
Voltage Adjust Enable 90 to 110% Vo TTL compatible (Positive or 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 60950-1 TUV EN60950-1
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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
ALD25
Ordering Information
Input Voltage 36V 36V 36V 36V 36V 36V to to to to to to 75V 75V 75V 75V 75V 75V Output Voltage 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V Output Current 12A 18A 20A 25A 25A 25A Efficiency2 91% Typ 90% Typ 89% Typ 88% Typ 85% Typ 83% Typ Model Number 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)
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)
Pin Assignments
Pin 1
TH Termination
1. 30 [ 0] 33.
Pin 8
0. 90 [ 9] 22.
Single Output 1. 2. 3. 4. 5. 6. 7. 8. + Vin Enable - Vin - Vout - Sense Trim + Sense +Vout
0. [ 0O]6X) 04O 1. (
PIN LENGTH
0. 35 [ 8] 8. 0. 22 See A [ 5] 5. 0. 03 [ 8] 0. 0. 10 [ 5] 2. 1. 10 [ 9] 27. 0. 10 [ 5] 2. 0. 15 [ 8] 3.
A
PI SI DOW N N DE
0. 19 [ 8] 4.
Std Pin Length: 0.189 [4.8] MIN 0.205 [5.2] MAX "-6" Option: 0.137 [3.5] MIN 0.152 [3.9] MAX
2 062 SI VI O[ 57O]( DE 0. EW 1.
0. 15 [ 8] 3. 0. 30 45 [ 6] 0. 7. 0. 60 [ 4] 11. [ 2] 15.
Notes: 1. Measured at 20MHz bandwidth with external 10 F tant. capacitor in parallel with 0.1 F ceramic capacitor placed across +Vout and -Vout; 33F e-cap or equivalent placed across +Vin and -Vin. 2. Efficiency measurements taken at full load, nominal line and TA = 25 C. 3. All specifications are typical at nominal line, full load and TA = 25 C unless otherwise noted. 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). 5. Technical reference Notes should be consulted for detailed information when available.
0. 15 [ 8] 3. 0. 30 [ 6] 7. 0. 60 [ 2] 15.
PI SI UP N DE PI SI UP N DE
SMT Termination
1. [ 0] 30 33.
Astec Industry Standard
0. [ 9] 90 22.
PI SI DOW N N DE
0. [ 4] 06 1.
1. [ 9] 10 27.
0. [ 8] 15 3. 0. [ 8] 15 3. 0. [ 6] 30 7. 0. [ 4] 45 11.
6. All specifications subject to change without notice. 7. Warranty 1 yr.
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. [ 8] 15 3. 0. [ 5] 10 2.
0. [ 2] 60 15. 0. [ 6] 30 7.
0. [ 6] 30 7.
PI SI UP N DE
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