AA25N Datasheet, PDF (1/2 Pages) Astec America, Inc – 25 Watts

25 Watts
AA25N
Total Power:
Input Voltages:
No. of Outputs:
25 Watts
24V or 48V
Single, Dual, Triple
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
Environmental
Operation case temperature range: -40°C to
+100°C
Storage temperature: -40°C to +125°C
Humidity: 5% to 100%
Safety
UL
CAN
TUV
UL1950
CAN22.2-950
EN60950
Electrical Specs
Input
Input range
18-36 Vdc (24 Vdc nominal)
36 - 75Vdc (48Vdc nominal)
Input capacitance
2mF typical
Input reverse voltage
protection
Fuse recommended
Input surge voltage
100V for 100mS (048L)
50V for 100mS (024L)
36V for 100mS (012L)
Input reflected ripple
<10mA (P-P)
See Note 2
Undervoltage lockout
Vin<32V (-048L ONLY)
Efficiency
82% typical
Output
Voltage tolerance
Main Output ±1.0%
Aux Output ±3.0%
Dual Output ±2.0%
Line regulation
Main Output ±0.1%
Aux Output ±0.5%
Dual Output ±0.2%
Load regulation
Main Output ±0.75%
Aux Output ±3.0%
Dual Output ±0.5%
(10% to 100% load) Note 6.
Noise/ripple
50mV P-P, Singles
100mVp-p, Dual , Triple
Short circuit protection Continuous power cycle
Overvoltage protection 120% of V0, Typ
Transient response
2% Vo typ; recovery <500msec typ
(25% step load change to within 1%Vo)
Temperature coefficient ±0.2%/°C
Switching frequency
350kHz
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
I/O isolation
1500Vdc
Isolation resistance
15 x 108 ohms
70
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