Document
80Amps
Ultra High Efficiency PRELIMINARY
AEH80 ALH80 (Open Frame)
Total Power: Input Voltages: No. of Outputs:
144 Watts (1.8V@80Amps) 48 V Single
Electrical Specs
Input
Input range Input Surge Efficiency 36-75 VDC 100V / 100ms 87%@1.8V (Typical)
Control
Enable TTL compatible (positive & negative enable options)
Output
Regulation (Line, Load, Temp) Ripple and noise Remote sense Output voltage adjust range Transient Response Overvoltage Protection <2% 50mV p-p typical Up to 10%Vout +/-10% of nominal output 4% deviation with 50% to 75% step load 300 µs recovery 130% nominal output
Special Features
• • • • • • • • • Ultra High efficiency, 1.8V@87% (Typical) Open Frame (ALH80) and Baseplate (AEH80) Redundant In-line Output Pins Option Positive and Negative enable function Low output ripple and noise High capacitive load limit on start-up Remote sense compensation Regulation to zero load Fixed frequency switching (200 kHz)
Environmental
Operating temperature -40°C to +100°C Baseplate (AEH80) -40°C to +85°C Ambient Air (ALH80) Storage temperature: -55°C to +125°C Overtemperature protection: 115°C PCB Temperature (Typical) MTBF: >1 million hours
Safety
UL, CUL 60950 Recognized (Pending) TUV EN60950 Licensed (Pending)
2
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 48V 48V 48V 48V 48V 48V Output Voltage 1.8V @ 80A 1.5V @ 80A 1.2V @ 80A 1.8V @ 80A 1.5V @ 80A 1.2V @ 80A Efficiency 87% (Typ)* 85% (Typ) 83% (Typ) 87% (Typ) 85% (Typ) 83% (Typ) Model Number AEH80Y48 AEH80M48 AEH80K48 ALH80Y48 ALH80M48 ALH80K48
* Typical Efficiency measured at nominal input voltage at an ambient temperature of Ta = 25°C. OPTIONS: suffix “N” = for Negative Enable (default is Positive Enable without Suffix “N”) suffix “-3” = Standard half brick pinout with Pins 6 and 10 removed
Pin Assignments
0.20 [5.1]
2.30 [58.4] 0.42 [10.6] 1.90 [48.3] 0.23 [5.9]
Single Output 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. +Vin Enable (on/off) Case -Vin +Output +Output (optional pin) + Sense Trim - Sense -Output (optional pin) -Output
-Output
- Vin
2.37 [60.3] 2.00 [50.8]
0.08Ø[2.0Ø] 4 PLACES
0.04Ø [1.0Ø] 7 PLACES
+O utput
+ Vin
PIN SIDE DOWN
0.50 [12.7] 0.50 [12.7]
SIDE VIEW
PIN ASSIGNMENT
0.70 [17.8] 0.90 [22.9] 1.20 [30.5] 1.50 [38.1] 1.70 [43.2] 1.90 [48.3]
11 10 9 8 7 6 5
0.90 [22.8]
1 2
1.50 [38.1] 1.90 [48.3]
3 4
Notes:
1. 20 mHz bandwidth. External 10 uF tant. capacitor + 0.1 uF cer. capacitor placed from +V out to -V out. 2. Requires a 2.2 mf, 100V film capacitor connected between +V in and.