2.11.2 Power supply specifications Input characteristics

Input Voltage Range

M i n

N o m

M a x

Range 1

90 V

115 V

132 V

Range 2

180 V

230 V

264 V

Input Frequency Range

47

Hz ~ 63 Hz

 

Maximum Input AC Current

 

 

5 A maximum at 115

Vac

 

3 A maximum at 230

Vac, full load

Inrus h Current

 

 

 

 

45

A at 115

Vrms

 

 

90

A at 230

Vrms (at 25ºC ambient cold start)

Output voltage requirements

Parameter

R a n g e

M i n

N o m

M a x

U n i t

+3.3

V

+/-5%

+3.14

+3.3

+3.47

Volts

 

 

 

 

 

 

 

+5

V

+/-5%

+4.75

+5

+5.25

Volts

 

 

 

 

 

 

 

+12

V

+/-5%

+11.4

+12.0

+12.6

Volts

-12

V

+/-10%

-10.8

-12.0

-13.2

Volts

 

 

 

 

 

 

+5 VSB

+/-5%

+4.75

+5

+5.25

Volts

 

 

 

 

 

 

 

• At no load, +3.3 V output +/-5% regulation limits do not apply.

•At +12 V surge, regulation can go up to +/-10%.

DC output current load ranges

Parameter

M i n

N o m

M a x

P e a k

U n i t

+3.3

V

0.5

-

17.0

-

Amps

 

 

 

 

 

 

 

+5

V

0.3

-

13.0

-

Amps

 

 

 

 

 

 

 

+12

V

1.0

-

16.0

17.0

Amps

-12

V

0.0

-

0.3

-

Amps

+5 VSB

0.0

-

2.0

2.5

Amps

 

 

 

 

 

 

 

• +5 VSB is an SELV standby voltage that is always present when AC main voltage is present.

•The maximum continuous average DC output power should not exceed 220 W.

•The maximum combined load on +5 V and +3.3 V outputs should not exceed 80 W.

•The maximum peak total DC output power should not exceed 225 W.

•Peak +12 VDC output power should not exceed a duration of 12 seconds.

ASUS S-presso barebone system

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