NEW 3.3V Output
AA50 A
50 Wa t t s
AA50A Series
Total Power
50 Watts
Input Voltages
# of Outputs
24V or 48V
Single, Triple
El e c t r ic a l Spe c i f ic a t io n s
Spe c i a l Fe a t u r e s
•
•
•
•
•
•
Isolated Output
3.6:1 input range
5 year warranty
4.0" x 2.6" x 0.5" case
Parallelable (singles only)
Six sided shielding
Input
Input Range .......................... 20 to 72 VDC
Input Surge Voltage .............. 100V for 100ms
Input Reflected Ripple........... <1MA See Note 2
Input Capacitance ................. 2.2mF (typical)
Efficiency ............................... 82% typical
Input Reverse........................ Fuse recommended
Voltage Protection
En v i r o n m e n t a l
Operating Temperature Ambient:
-40°C to +60°C FL, No derating
Control
Enable ................................... TTL compatible
(high to enable or open circuit)
Paralleling ............................. Singles only
Operating Temperature (baseplate): 105°C max
Humidity (Non-condensing): 5% to 95%
Storage Temperature: -40°C to +105°C
MTBF: 312,000 hours (MIL HDBK-217F)
Output
Voltage Tolerance.................. + 1% (Main)
Output 2&3 (12V); +6.0%, -0%
Output 2&3 (15V); +3%, -6%
Line Regulation ..................... +0.5% (Main); +1% (Aux)
Load Regulation .................... + 1% (Main) 10%-FL; + 5% (Aux);
10%L to FL, bal.
Sa f e t y
UL
UL 1950
Ripple/Noise.......................... 1% mV P-P; bandwidth 20 MHz;
See note 1 below
Temperature Coefficient ........ +0.02%/°C (max)
Short Circuit Protection ......... Continuous-
Power Cycle Output 1,2 and 3
Overvoltage Protection ......... Zener (Main only)
Transient Response .............. 300 msec (50% step)
Switching Frequency............. 330 kHz typical
N o t e s
Note 1- An external 0.1mf ceramic
capacitor is recommendd to be
placed from the +V out to the -V
out.
Note 2- Requires a 2.2mf, 100V film
capacitor connected between
+Vin
Isolation
I/O Isolation ........................... 1500 VDC
Isolation Resistance .............. 1 x 109 ohms
and -Vin to meet FCC Class A
and ETS300-381-1.
All specifications are typical at nominal
line, full load, and 25°C unless otherwise
noted.
Specifications subject to change without
notice.
138
North America: 760-930-4600 Europe (UK): 01384-842211