1. SCOPE
This specification defines electrical performance and characteristic of “AS250-1U Active PFC”
Full Range Series power supplies.
2. AC INPUT and AC OUTPUT:
RANGE(100-240VAC)
Limits Minimum Maximum Unit
AC Input voltage 100 264 Vac
AC Input frequency 47 63 Hz
AC Input Current 5 Amp(rms)
Inrush current2. (cold) 100 Amp(peak)
Inrush current (warm) NO COMPONENT OVER STRESSED.
NO FUSE BLOW.
NO DAMAGE TO THE POWER SUPPLY.
NOTE: 1. The AC input is protected by the AC fuse.
2. Measured at 25 Deg C Ambient.
3. DC OUTPUT REQUIREMENTS:
3.1 DC OUTPUT CURRENT RATINGS
DC OUPTUT Tolerance
+3.3VDC +5%/-5%
+5VDC +5%/-5%
+12VDC +5%/-5%
Group1
-12VDC +10%/-10%
Group2 +5Vsb +5%/-5%
Load Range
Output Minimum Load Maximum Load Peak Load
+12V1 1A 8A 10A
+12V2 1A 14A 16A
+5V 0.5A 17A X
+3.3V 0A 14A X
-12V 0A 0.8A X
+5Vsb 0A 2A 2.5A
1. Maximum continuous total DC output power should not exceed 250 W
2. Maximum continuous combined load on +3.3 VDC and +5 VDC outputs should not exceed 110 W.
3. Max. continuous combined load on +12 V1DC and +12V2DC outputs should not exceed 216 W/18A.
4. Maximum peak total DC output power should be approximate 275 W.
5. Peak power and current loading should be supported for a minimum of 1 second
Autec Power Systems, Inc. Tel: 805-522-0888 Fax: 805-522-8777
e-mail: autecsales@autec.com Web site www.Autec.com
1.
AS250-1U Active PFC
3.2 CROSS REGULATION
The +5V & +3.3V combined load and +12VDC load shall remain within the regulation
Defined in section 3.1 over cross load combinations shown Figure 1
140
1202.5 48 110
216
34
3.3V,+5V Combined load(W)
+12V
load(W)120
48
Figure 1 +5V&+3.3V , +12V Output Cross Load Combinations
3.3 OUTPUT RIPPLE and NOISE
Measurement is made with an oscilloscope with 20 MHz bandwidth. Output should be bypassed
at the connector with a 0.1uF ceramic disk capacitor and a 10uF electrolytic capacitor to
simulate system load. The length of ground wire on probe should not longer than 40mm, if a
non-differential type of scope was used.
+3.3V +5V +12V -12V +5Vsb
50mV 50mV 120mV 120mV 50mV
3.4 DYNAMIC DC OUTPUT CHARACTERISTICS
+/-10% Max. Excursion for 50% to 100%, or 100% to 50% load change with return to
Regulation in 0.5 mS.
3.5 DC OUTPUT ON/OFF CONTROL
A low active PS-ON (DC ON/OFF) input signal is equipped, which provide the interface to
ENABLE or to DISABLE the GROUP1 of DC output. This signal is electrically compatible
to interface with TTL,OPEN COLLECTOR and the HARD SWITCH.
T4
+5V/+3.3V O/P
T2
T3
4.75V
PS_ON#
PWR_OK
Vin(AC)
T5
10%
T1
SIGNAL NAME MAXIMUM MINIMUM
T1 +5V RISE TIME 20 mS
T2 +5V TURN-ON DELAY TIME 100 mS
Autec Power Systems, Inc. Tel: 805-522-0888 Fax: 805-522-8777
e-mail: autecsales@autec.com Web site www.Autec.com
AS250-1U Active PFC
T3 PWR_OK DELAY TIME 500 mS 100 mS
T4 DC SAVE TIME 1 mS
T5 HOLD-ON TIME (AT NOMINAL AC INPUT) 12 mS
4. OUTPUT PROTECTION
4.1 TOTAL POWER PROTECTION: ( OPP )
Total power 135% max with shut-down and latch off protection.
4.2 OVER VOLTAGE PROTECTION: ( OVP )
OVER ACTIVE RANGE
VOLTAGEAT Min. Max. RESULT
+3.3V 3.76V 4.8V
+5V 5.7V 7.0V
+12V 15.6V
Shutdown&Latch OFF The
Group 1 DC Output
4.3 SHORT CIRCUIT PROTECTION: ( SCP )
The short between any output of group 1 will shut down all group1.
The short at group 2 will Shut down both group 1 and group 2.
4.4 RESET AFTER SHUTDOWN
Whenever the power supply latches into shutdown state due to fault condition on its output,
The power supply will return to normal operation only after the fault has been removed and
the power switch has been cycled off/on with A MINIMU M OFF TIME OF 20mS. (PS- ON)
5. POWER GOOD SIGNAL:
Signal Type: open collector +5DC, TTL compatible.
Logic Level: <0.4V while sinking 4 mA.
Logic Level High: between 2.4VDC and +5V output while sourcing 200 uA.
6. EFFICIENCY:
6.1 AT FULL LOAD:
Over 72% at normal input voltage.
74% at AC 100v 60Hz ; 76% at AC 230v 50Hz (typical)
6.2 ENERGY STAR MODE
Over 50% at 30W max power consumption with 15W load or more delivered to
DC power output.
6.3 STANDBY MODE
During measurement of the ”STANDBY MODE” condition, the main converter is off
(PS_ON=High). +5Vsb converter is working and standby input power is measured.
true RMS input power (standby)
+5Vsb/ 0.5A; input voltage: 230VAC 50HZ < 5W
true RMS input power (standby)
+5Vsb/ 0A ; input voltage: 230VAC 50HZ < 1.5W
Autec Power Systems, Inc. Tel: 805-522-0888 Fax: 805-522-8777
e-mail: autecsales@autec.com Web site www.Autec.com
AS250-1U Active PFC
7. COOL IN G OF PSU
A DC FAN was equipped to cooling the power supply and system load , the FAN will draw in
air from system into PSU directly, and exhaust air through vent hole in AC receptacle side.
Fan parameters
8. ACTIVE POWER FACTOR CORRECTION (PFC):
8.1 Harmonic current meets IEC1000-3-2 / EN61000-3-2 standards.
8.2 PFC>0.95 ; 220Vac input >0.98(typical) under full load.
9. ENVIRONMENT
9.1 OPERATING
Temperature: 0 to 50
oC. (The rated power will derate from 100% to 80% from 40oC to 50 oC
Linearly)
Relative Humidity: 20% to 85%
9.2 SHIPPING / STORAGE
Temperature: -40 to 85 Deg C
Relative Humidity: 10% to 95%
10 MTBF
Over 100,000 hours at 75% Load and 25 oC ambient conditions and 115V~ or 230V~ input voltage,
excluding the DC Fan.
11 EMC
Comply to CE EN50081-1(1992) , EN55024( 1998) & FCC (B) regulation
EMS
Comply to EN55024(1998)
HARMONIC DISTORTION
Comply to EN61000-3-2(1995)
12 SAFETY:
Conform to IEC950 (EN60950) standards: TUV, CB, C-UL ,
13 MECHANICAL DRAWING:
Dimension : L150*W81.5*H40.5 mm
Rated voltage
Dimensions
Air flow
Noise
12VDC
40*40*20 (mm)
9.5 CFM min.
<45.5 dBA
Autec Power Systems, Inc. Tel: 805-522-0888 Fax: 805-522-8777
e-mail: autecsales@autec.com Web site www.Autec.com
AS250-1U Active PFC
