Astec Conventional Power
25 Watts
AA25N
Total Power:
Input Voltages:
No. of Outputs:
25 Watts
24V or 48V
Single, Dual, Triple
Electrical Specs
Input
Input range
Input capacitance
Input reverse voltage
protection
Input surge voltage
18-36 Vdc (24 Vdc nominal)
36 - 75Vdc (48Vdc nominal)
2mF typical
Fuse recommended
100V for 100mS (048L)
50V for 100mS (024L)
36V for 100mS (012L)
<10mA (P-P)
See Note 2
Vin<32V (-048L ONLY)
82% typical
Main Output
±1.0%
Aux Output ±3.0%
Dual Output ±2.0%
Main Output
±0.1%
Aux Output ±0.5%
Dual Output ±0.2%
Main Output
±0.75%
Aux Output ±3.0%
Dual Output ±0.5%
(10% to 100% load) Note 6.
50mV P-P, Singles
100mVp-p, Dual , Triple
Continuous power cycle
120% of V0, Typ
2% Vo typ; recovery <500msec typ
(25% step load change to within 1%Vo)
±0.2%/°C
350kHz
Input reflected ripple
Undervoltage lockout
Efficiency
Output
Special Features
• Ideal for telecom/networking
applications
• High efficiency
• Unencapsulated 2.0” x 2.0” x 0.50” package.
• Integral heat spreader available
• 100°C Baseplate temperature
• Enable (on/off)
• Thermal protection
• 350kHz Switching frequency
• Under voltage lockout
Voltage tolerance
Line regulation
Load regulation
Noise/ripple
Short circuit protection
Overvoltage protection
Transient response
Temperature coefficient
Switching frequency
Environmental
Operation case temperature range: -40°C to
+100°C
Storage temperature: -40°C to +125°C
Humidity: 5% to 100%
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) <10ma
Output trim
Single output models
Thermal shutdown
110°C Baseplate temperature (typ)
Auto reset
Isolation
Safety
UL
CAN
TUV
UL1950
CAN22.2-950
EN60950
I/O isolation
Isolation resistance
1500Vdc
15 x 108 ohms
70
America’s (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211
Asia (HK): 852-2437-9662
ASTEC [ Astec America, Inc ]
