Europe (UK): +44 (0)1384-842211 France: +33 (0)1 4305 8680 Germany +49 (0)6621 50570
132
Electrical Specifications
Input
Input Range ..........................180 to 400 VDC
or
36 to 72 VDC
or
18 to 36 VDC
Efficiency...............................83% typical (5V @ 40A);
87% typical (12V @ 18A);
87% typical (15V @ 16A)
Control
Voltage Adjust .......................90 to 110% Vo
Enable ................................... TTL compatible (low to enable)
Current Limit Adjust .............. 20 to 100% Io
Clock Input (external sync) ... 3.5 to 5Vp-p @ 1MHz ± 10%
Clock Output (inter nal 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)
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
recover y (25-75% full load)
Current Share Accuracy .......5% typical
Overvoltage Protection .........130% nominal Vo
Current Limit .........................115% Io max
Notes
Nominal values apply with sense pins connected and other control
pins unconnected.
Specifications subject to change without notice.
Special Features
• 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
Environmental
Operating Temperature (baseplate):
-20°C to +85°C
Storage Temperature: -40°C to +105°C
Overtemperature Protection:90°C typical
MTBF: > 1 million hours (50°C baseplate)
Safety
UL UL 1950 E132002
CSA CSA22.2-234 LR53982C
CSA22.2-950
VDE IEC95020366-3336-1002 & 1008
EN 60950
CE CEMark (LVD)
AK80A
240 Watts
AK80A Economy Series
Input Voltages
24V, 48V or 300V
# of Outputs
Single
Total Power
240 Watts
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Power Fax + 1 760-930-0698 133
DC/DC CONVERTERS
DC/DC CONVERTERS
ASTEC FRANCE S.A.R.L.
424 La Closerie, Mont D’est
93194 Noisy Le Grand
France
Telephone: +33 (0)1 4305 8680
Facsimile: +33 (0)1 4304 6033
ASTEC STANDARD POWER GERMANY
Robert-Heil-Str. 8
36251 Bad Hersfeld
Germany
Telephone: +49 (0)6621 50570
Facsimile: +49 (0)6621 505720
ASTEC STANDARD POWER EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: +44 (0)1384 842211
Facsimile: +44 (0)1384 843355
Load
+ SENSE
– SENSE
+ O/P
– O/P
18 to 36V
or
36 to 72V
or
180 to 400V
+ I/P
– I/P
9
81
4
Current limit adjust Output voltage adjust
Enable
(close to enable)
Temperature monitor output
(e.g. to fan control circuit)
PG/ID goes high (to Vo) to indicate power good.
Resistance between PG/ID and +O/P
with no power applied indicates nominal
O/P voltage, where 1K Ohm = 1 volt
(eg 3K3 = 3.3 V).
3
2
12
5
Input Output Control Pins
31. +ve 21. 1. +SENSE
32. –ve 22. 2. PG/ID
23. 3. V ADJ
24. 4. -SENSE
26 . 5 . S COM
27 . 6 . C SHARE
28 . 7. CLK OUT
29 . 8. CLK IN
9. ENABLE
10 . C LIM ADJ
11 . TEMP MON
12. PRI A UX
AK80A
Pin Assignment
+ve
–ve
Secondary
side
controls
Primary
side
controls
Ordering Information
Input Output Output Model Number Input Output Output Model Number
Voltage Voltage Current Voltage Voltage Current
Doc No: 1202 • Rev 11.5.98
300V 3.3V 50A AK80A-300L-033F50
300V 5V 40A AK80A-300L-050F40
300V 12V 18A AK80A-300L-120F18
300V 15V 16A AK80A-300L-150F16
300V 24V 10A AK80A-300L-240F10
48V 3.3V 50A AK80A-048L-033F50
48V 5V 40A AK80A-048L-050F40
48V 12V 18A AK80A-048L-120F18
48V 15V 16A AK80A-048L-150F16
48V 24V 10A AK80A-048L-240F10
24V 3.3V 40A AK80A-024L-033F40
24V 5V 30A AK80A-024L-050F30
24V 12V 14A AK80A-024L-120F14
24V 15V 12A AK80A-024L-150F12
24V 24V 8A AK80A-024L-240F08
THERMAL BASE PLATE
*
2 INPUT PINS 4 SECONDARY SIDE
CONTROL PINS
8 OUTPUT PINS
116.8 (4.60)
61.0 (2.40)
29
21
28
27
26
24
23
22
21
58
32
31
AMPSS™ POWER MODULE
12.7
(0.50)
34
129
8 PRIMARY SIDE
CONTROL PINS
Dimensions
Load
+ SENSE
– SENSE
C SHARE
1
4
+ SENSE
– SENSE
C SHARE
CLK OUT
5
CLK IN
+ O/P
– O/P
3
2
12
81
4
5
3
2
912
8
9
ENABLE
ENABLE
S COM
S COM
Parallel connections
Connections
Connection e xample
*Must be connected to protective earth
Please contact Astec for information on other output voltages, power ranges and configurations.
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