USA: 1-888-41-ASTEC Europe (UK): +44(0)1384-842211 Asia (HK): 852-2437-9662
186
SPECIAL FEATURES
•85°C baseplate operating temperature
(no derating)
•Low output ripple and noise
•Excellent transient response
•Safety isolated low voltage interface
with ALPTM linear control
•High Reliability - over 1 million
hours MTBF
•Wide input voltage range
•Parallelable with accurate current
sharing
•Current and temperature monitoring signals
for each output
ENVIRONMENTAL
Operating temperature (baseplate):
-20°C to +85°C
Storage temperature: -40°C to +105°C
Overtemperature protection: 100°C typical
MTBF: > 1 million hours (50°C baseplate)
SAFETY
UL UL 1950 E132002
CSA CSA22.2-234 LR53982C
CSA22.2-950
VDE IEC950 20396-3336-1011
EN 60950
CE CEMark (LVD)
ELECTRICAL SPECIFICATIONS
Input
Input Range............................. 36 to 72 VDC
Efficiency................................. 80% typical (5V @ 25A, 3.3V @ 30A)
Control
Voltage Adjust ......................... 80 to 120% Vo linear programming
Enable ..................................... TTL compatible (low to enable)
Current Limit Adjust................. 20 to 100% Io linear programming
Clock Input (external sync)...... 3.3 to 5.5Vp-p @ 1MHz ± 10%
Clock Output (internal clock) ... 4.5Vp-p typical @ 1MHz ± 0.5%
Temperature Monitor Output ... 10 mV/K (2.73V = 0°C)
Current Monitor Output ........... 0 to 1mA (1 mA = 100% Io rated)
Over Voltage
Protection Adjust ..................... 110 to 150% Vo linear programming
Outputs
Load Regulation ...................... 0.1% typical down to no load
Line Regulation ....................... 0.02% typical
Noise/Ripple............................ 50 mV typical
Remote sense ......................... Up to 0.5V
Output Voltage Adjust Range .. ±20% of nominal output
Transient Response ................ 5% maximum de viation with 200µs
recovery (25-75% full load)
Current Share Accuracy.......... 3% typical
Overvoltage Protection............ 115% Vo (nominal)
Current Limit............................ 110% Io maximum
NOTES
Nominal values apply with sense pins connected and
other control pins unconnected.
Specifications apply to both outputs except
where otherwise indicated.
Specifications subject to change without notice.
AM80A-Dual
224 Watts
AM80A-Dual Performance Series
Input V oltages
48V
# of Outputs
Dual
Total Power
224 Watts
ELECTRICAL SPECIFICATIONS
www.astec.com
AMERICAS
5810 V an Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
187
D
C
D
C
P
O
W
E
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EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone:+44(0)1384-842211
Facsimile:+44(0)1384-843355
ASIA
6F., CDW Building
382-392 Castle Peak Road
Tsuen Wan, N.T., Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
Input Output Control Pins
31. +ve 21. 1. V1 SENSE
32. –ve 22. 2. V2 SENSE
24. 3. TEMP MON
25. 4. V1 C MON
26. 5. V2 C MON
28. 6. V1 C SHARE
29. 7. V2 C SHARE
8. CLK OUT
9. CLK IN
10. V2 C.L. ADJ
11. V1 C.L. ADJ
12. V2 OVP ADJ
13. V1 OVP ADJ
14. V2 V ADJ
15. V1 V ADJ
16. V2 ENABLE
17. V1 ENABLE
18. 0 SENSE
36 to 72V
+ I/P
– I/P
Temp.
Monitor To other
modules
From other
modules
OVP
Adjust
C Limit
Adjust
µController
Alarm
Fan control
Remote system on/off
3.3V adj.
10
9
D/A
A/D
1
18
3.3V / 30A
5V / 25A
5V adj.
3.3V enable
5V enable
0 SENSE
+SENSE 2
+SENSE 1
0
V2
V1
THERMAL BASE PLATE*
2 INPUT PINS 18 CONTROL PINS
8 OUTPUT PINS
116.8 (4.60)
61.0 (2.40)
29
18
1
28
25
26
24
22
21
9
10
32
31
AMPSS
TM
POWER MODULE
12.7
(0.50)
DIMENSIONS
Microprocessor connection example
10
91
18
3.3V
5V
0 SENSE
+ SENSE 2
10
91
18
V1 C SHARE
V2 C SHARE
CLK OUT
V1 C SHARE
V2 C SHARE
CLK IN
+ SENSE 1
0
V2
V1
0 SENSE
+ SENSE 2
+ SENSE 1
0
V2
V1
3.3V Enable
5V Enable
Rev 11.6.98
AM80A-Dual
Secondary
side
controls
*Must be connected to protective earth
Viewed from pins side . Dimensions in mm (inches)
Parallel connections
ORDERING INFORMATION
Input Output Output Model Number
Voltage Voltage 1 Voltage 2
48V 5V@25A 3.3V@30A AM80A-048L-050P25D033P30
CONNECTIONS PIN ASSIGNMENTS
V2
V1
0
