Astec Integrated Power
240 Watts
AK80A
Total Power:
Input Voltages:
No. of Outputs:
240 Watts
24V
Single
Electrical Specs
Input
Input Range
Efficiency
18 to 36 VDC
83% typical @
5V;
87% typical
@
12V;
87% typical
@
15V
Output
Load Regulation
Line Regulation
Noise/Ripple
Remote sense
Output Voltage
Adjust Range
Transient Response
Current Share Accuracy
Overvoltage Protection
Current Limit
0.3% typical down to no load
0.1% typical
100 mV typical (output below 5V)
2% typical (output 5V and over)
Up to 0.5V
±10% of nominal output
10% typical deviation with 300µs
recovery (25-75% full load)
5% typical
130% nominal Vo
115% Io max
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
Control
Voltage Adjust
Enable
Current Limit Adjust
Clock Input
(external sync)
Clock Output
(internal clock)
Power
Good/Identification
Temperature
Monitor Output
90 to 110% Vo
TTL compatible (low to enable)
20 to 100% Io rated
3.5 to 5Vp-p @ 1MHz ± 10%
4.4 to 5.5Vp-p @ 1MHz ± 0.5%
High (Vo) = power good
10 mV/°K (2.73V = 0°C)
Environmental
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)
Notes
Nominal values apply with sense pins connected and other control
pins unconnected.
Specifications subject to change without notice.
Safety
UL
CSA
VDE
EN
CE
UL 1950
E132002
CSA22.2-234
LR53982C
CSA22.2-950
IEC950 20366-3336-1002 & 1008
60950
CEMark (LVD)
52
America’s (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211
Asia (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
24V
24V
24V
24V
24V
Output
Voltage
3.3V
5V
12V
15V
24V
Output
Current
40A
30A
14A
12A
8A
Model Number
AK80A-024L-033F40
AK80A-024L-050F30
AK80A-024L-120F14
AK80A-024L-150F12
AK80A-024L-240F08
Please contact Astec for information on other output voltages, power ranges and configurations.
Pin Assignments
Input
31. +ve
32. –ve
Output
21. +ve
22. +ve
23. +ve
24. +ve
26. -ve
27. -ve
28. -ve
29. -ve
Control Pins
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
+SENSE
PG/ID
V ADJ
-SENSE
S COM
C SHARE
CLK OUT
CLK IN
ENABLE
C LIM ADJ
TEMP MON
PRI AUX
THERMAL BASE PLATE
*
8 PRIMARY SIDE
CONTROL PINS
2 INPUT PINS
4 SECONDARY SIDE
CONTROL PINS
Secondary
side
controls
32
9
8
12
5
3
2
4
1
AMPS ™POWERMODULE
Primary
side
controls
31
24
23
22
21
116.8 (4.60)
C SHARE
CLK OUT
8
9
ENABLE
5
12
S COM
+ O/P
2 1
+ SENSE
Load
3 4
– SENSE
Temperature monitor output
(e.g. to fan control circuit)
PG/ID goes high (to Vo) to indicate power goo
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).
+ O/P
– O/P
C SHARE
CLK IN
8
9
ENABLE
5
S COM
18 to 36V
or
36 to 72V
2 1
+ SENSE
3 4
– SENSE
+ I/P
8
9
– I/P
5
12
2
1
+ SENSE
3 4
– SENSE
– O/P
12
Enable
(close to enable)
Current limit adjust
Output voltage adjust
www.astec.com
61.0 (2.40)
Load
29
28
27
26
12.7
(0.50)
8 OUTPUT PINS
5
Microcontroller MCU
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