Special Features
Electrical Specs
240 Watts
AK80A
• High efficiency - up to 87%
• 500 KHz fixed frequency
• 85°C baseplate operating
temperature (with no derating)
• Low output ripple and noise
• Excellent transient response
• High reliability - over 1 million hours MTBF
• Wide input voltage range
• TTL compatible enable control
• Parallelable
• Adjustable output voltage and current limit
• Temperature monitor output
• Overtemperature and short circuit
protection
• Regulation to zero load
Operating temperature (baseplate):
0°C to +85°C
Storage temperature: -40°C to +105°C
Overtemperature protection: 90°C typical
MTBF: > 1 million hours (50°C baseplate)
UL UL 1950 E132002
CSA CSA22.2-234 LR53982C
CSA22.2-950
VDE IEC950 20366-3336-1002 & 1008
EN 60950
CE CEMark (LVD)
Input
Input Range 18 to 36 VDC
Efficiency83% typical @ 5V;
87% typical @ 12V;
87% typical @ 15V
Output
Load Regulation 0.3% typical down to no load
Line Regulation 0.1% typical
Noise/Ripple 100 mV typical (output below 5V)
2% typical (output 5V and over)
Remote sense Up to 0.5V
Output Voltage
Adjust Range ±10% of nominal output
Transient Response 10% typical deviation with 300µs
recovery (25-75% full load)
Current Share Accuracy 5% typical
Overvoltage Protection 130% nominal Vo
Current Limit 115% Io max
Control
Voltage Adjust 90 to 110% Vo
Enable TTL compatible (low to enable)
Current Limit Adjust 20 to 100% Io rated
Clock Input
(external sync) 3.5 to 5Vp-p @ 1MHz ±10%
Clock Output
(internal clock) 4.4 to 5.5Vp-p @ 1MHz ±0.5%
Power
Good/Identification High (Vo) = power good
Temperature
Monitor Output 10 mV/°K (2.73V = 0°C)
Notes
Nominal values apply with sense pins connected and other control
pins unconnected.
Specifications subject to change without notice.
Environmental
Total Power: 240 Watts
Input Voltages: 24V
No. of Outputs: Single
Safety
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America’s (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-966252
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