Embedded Power for
Business-Critical Continuity
Rev. 01.05.07
AEH40Series
1 of 2
AEH40 Series
132 Watts / 48 Watts
Total Power:
132 Watts (for the 3.3 Vo device)
48 Watts (for the 1.2 Vo device)
Input Voltage: 36 - 75 VDC
# of Outputs: Single
Electrical Specifications
Input
Input Range
36 to 75 VDC
Input Current (max.)
6.2 A (for the 3.3 Vo device)
2.0 A (for the 1.2 Vo device)
20 mAp-p 5Hz to 20MHz: 12uH source impedance, TA=25 ºC
Input Reflected-ripple
CurrentOutput
Output
Special Features
• Delivers up to 40A output
current
Output voltage
3.25 to 3.35 Vdc (3.3 Vdc Nominal)
1.18 to 1.22 Vdc (1.2 Vdc Nominal)
• Basic Isolation
• Ultra HIgh Efficiency
• Improved thermal perform-
ance: 40A at 70 ºC at 1.5ms-1
(300LFM)
Output Current
Efficiency
0 to 40 A
>87% (89% typ) : 3.3 Vo device
>80% (81% typ) : 1.2 Vo device
•
High power density
Line output regulation 10 MV max. (5MV Nominal) : 3.3 Vo device
5 MV max. (3MV Nominal) : 1.2 Vo device
• Low output noise
• Industry standard pinout
• 2:1 wide input voltage
• CNT function
Load Output Regulation 20 mV max (10 mV Typ) : 3.3 Vo device
18 mV max (5 mV Typ) : 1.2 Vo device
• Remote sense
Switching Frequency
280KHz for the 3.3 Vo
220KHz for the 1.2 Vo
• Trim function: +10% / -20%
• Input under-voltage lockout
• Output over-current lockout
• Output over-voltage protec-
tion
Isolation
I/O isolation
1500 Vdc
1000 pF
• Over temperature protection
• RoHS Compliant
Isolation Capacitance
Isolation Resistance
>10 Mohms
Environmental Specifications
-40 ºC to 70 ºC
Operating ambient temperature range
-55 ºC to 125 ºC
Storage temperature
Temperature Regulation
Calculated MTBF
Safety
0.02 %Vo/ºC
UL cUL
TUV
2 Million hours (typ.); Io=Io-max; Tc=25 ºC
mars
ASTEC [ Astec America, Inc ]
