Embedded Power for
Business-Critical Continuity
AIH Series
250 Watts
Special Features
• 250W Continuous power at
100°C baseplate temperature
• High efficiency - up to 88%
• Low output ripple and noise
• Positive and Negative
enable function
• Excellent transient response
• Safety isolated low voltage
control and monitoring
• High reliability
• Wide input voltage range
• Paralleable with accurate
current sharing
• Adjustable output voltage
• Regulation to zero load
• Temperature monitor output
• EU Directive 2002/95/EC
compliant for RoHS
Total Power: 250 Watts
(12V @ 20.8A)
Input Voltage: 300V
# of Outputs: Single
Electrical Specifications
Safety
Input
Input range 250 - 420 VDC
Input surge 450V / 100ms
Efficiency 88% @ 5.0V (typical)
Output
Load Regulation 0.2% typical (5V and above); 10mV for below 5V
Line Regulation 0.2% typical (5V and above); 10mV for below 5V
Noise / ripple 100mV typical (below 5V); 2% typical (5V and above)
Output voltage adjust range
+/-20% for 5V and above; +10%/ -50% for below 5V
Transient response
5% max for 3.3V and above150mV for 1.8V, deviation with 25%
to 75% full load 250 µS (max) recovery
Current share accuracy 3% typical
Overvoltage protection 130% Vo (3.3 Vo and 5 Vo); 125% Vo (other Vo)
Current limit 120% Io maximum
Control
Voltage adjust 80 to 120% for 5V and above; +10% / -50% for below 5V
Enable TTL compatible (positive & negative enable options)
Clock input (external sync) 3.3 to 5.5Vp-p @800 MHz ±5%
Temperature
monitor output
10mV/°K (2.73 = 0°C)
Current monitor output 0 to 1mA (1mA = 100% I
o rated
)
Notes
Nominal values apply with sense pins disconnected and other control pin unconnected.
UL 60950 Recognized
cUL 60950 Recognized
TUV EN60950 Licensed
CE CE Mark
Rev. 07.25.05
AIH Series
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