Special Features
Electrical Specs
Special Features
75 Watts
AA60A
• Output loadsharing
• 48VDC Input
• Unencapsulated 2.3” x 2.4” x 0.50” pkg.
• 100°C Baseplate temperature
• Trim feature, both rails
• Industry standard pin-out
• Enable (on/off)
• Thermal protection
• 5.0V/3.3V dual outputs
Operating case temperature range:
-40°C to +105°C
Storage temperature: -40°C to +105°C
Humidity: 5% to 100% (non-condensing)
UL UL 1950 File E494367
CAN22.2-950
TUV EN60950 File DE3-5117A
Input
Input range 36 to 75 VDC (48Vdc Nom.)
Input capacitance 6.8mF (typical)
Efficiency 82% typical
Input reverse
Voltage protection Fuse recommended 3A.MB
Input surge voltage 100V for 100mS
Input reflected ripple <200mA (P-P)
Output
Voltage tolerance + 1% (Main)
Output 1; ±1.0%
Output 2 ; ±1%
Line regulation Output 1; ±0.2%
Output 2 ; ±0.2%
Low Line - High Line @ Full Load
Load regulation Output 1; ±0.5%
Output 2 ; ±0.5%
(10% to 100% load)
1A minimum load per rail required
Ripple/noise 100mV P-P(max)
Temperature coefficient +0.02%/°C (max)
Short circuit protection Continuous - Power Cycle
Overvoltage protection Shutdown (latching)
Transient response 4% Vo max recovery <100msec
(25% to 75% step load change)
Switching frequency 400 kHz typical
Control
Enable on =2.5 to 5.5Vdc or open circuit
off = 0 to 0.8Vdc
Ref. to -Vin. TTL compatible
Input current (enable off) <2ma.
Output trim Both outputs ±10% minimum
Thermal shutdown 110°C typ (baseplate temperature)
Auto reset
Isolation
I/O isolation 1500 VDC
Isolation resistance 1 x 109 ohms
Environmental
Total Power: 75 Watts
Input Voltages: 48V
No. of Outputs: Dual
Safety
Astec Industry Standard
America’s (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662
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W9959_02_DCDC_001-073_73 2/8/02 3:32 PM Page 38
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
Ordering Information
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
2.30
1.900
.040
[1.01]
.20 MIN.
.5
[58.4]
[48.26]
DIA. TYP.
[1207]
[5.0]
.600
[15.24]
1.400
[35.56]
2.000
[50.80]
.400
[10.16]
1.000
[25.40]
1.600
[40.64]
2.40
[61.0]
1
2
3
4
5
6
7
8
9
10
Mounting
Inserts
M3 X .5 (4 places)
Input Output 1 Output 2 Model Number
Voltage Voltage Voltage
36 - 75VDC 3.3V @ 19A 2.5V @ 19A AA60A-048L-033D025
36 - 75VDC 5.0V @ 15A 3.3V @ 15A AA60A-048L-050D033
Note:
Enable Function
"N" = negative logic enable (without "N" = positive enable)
Trim Feature
“-PI” suffix = IPD Trim equivalent
1. Maximum output power not to exceed 75W total for 5/3.3V version (15A).
2. The sum of output currents not to exceed 15amps for 5/3.3V (19A max for 3.3/2.5V).
3. Any output loading ratio within the maximum specified limits is possible.
Single Output
1. -Vin
2. Case
3. Enable (on/off)
4. Vin+
5. V2
6. Rtn (V2)
7. Trim (V2)
8. V1
9. Rtn (V1)
10. Trim (V1)
Notes:
1. 20MHz bandwidth. An external 2.2mf ceramic capacitor is
recommended to be placed from +V out to -V out.
2. Requires a 2.2mf, 100V film capacitor connected between +V in
and -V in to meet FCC class A and ETS300-386-1 requirements
for conducted noise.
3. All specifications are typical at nominal line, full load, and 25°C
unless otherwise noted.
4. All specifications subject to change without notice. Mechanical
drawings are for reference only.
5. Please refer to the Technical Reference Notes for more
information.
6. Warranty: 1 yr
Pin Assignments
AA60A Astec Industry Standard
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