Item

Unit

Minimum

Typical

Maximum

Test Conditon

Temperature

¡æ

-20

 

50

 

RH

%RH

40

 

90

No Condensation

Item

Unit

Minimum

Typical

Maximum

Test Conditon

DC INPUT

Vdc

9.0

 

20

 

Iput Current

A

 

 

 

 

Input Inrush Current

A

 

 

10

 

 

Output

Min. Load

Max. Load

Peak Load

Output Voltage range

Ripple£¨pk-pk£©£¨rated load¡¢20MHz limit£©*

+5V

0.5A

5A

6A

4.75~5.25V

50mV

+12V

0.1A

2A

4A

11.40~12.60V

120mV

+3.3V

0.5A

5A

6A

3.14~3.55V

100mV

-12V

0A

0.3A

 

-11.0~-13.2V

120mV

+5VSB

0.1A

1.5A

1.5A

4.75~5.25V

100mV

PG

 

 

 

4.75~5.25V

 

Item

Unit

Minimum

Typical

Maximum

Test Conditon

Output Power

W

 

 

72W

DC output power

Efficiency

%

80

 

 

Rated load

 

 

 

 

 

 

Turn on Overshoot

%

 

 

10

 

Rise Time

ms

 

 

10

Output voltage up from 0% to 95%£¬rated load

Hold up Time

ms

2

 

 

Rated load

Item

Request

Standard

Judgement Grade

Conducted interference

CLASS A, 3dB margin

GB9254-1998

Ensure system pass the CLASS A and have 3dB margin

Radiation interference

CLASS A, 3dB margin

GB9254-1998

Ensure system pass the CLASS A and have 3dB margin

Harmonic Current

 

GB17625.1¡ª1998

 

Item

Unit

Yes/No

Minimum

Typical

Maximum

Recovery Characteristic

Input invertion protection

 

Yes

 

 

 

 

+5V OVP

V

Yes

5.8

 

6.8

Latched, need to re-apply DC input to recovery

+12V OVP

V

Yes

13.2

 

15.6

Latched

+3.3V OVP

V

Yes

3.9

 

4.3

Latched

Output Over Power Protection£¨+5V,+12V£©

Ratio to rated load

Yes

 

150%

 

Latched

 

 

 

Output Over Power Protection£¨+3.3V£©

Ratio to rated load

Yes

 

250%

 

Latched

Short CircuitProtection£¨+5V,+12V,+3.3V£©

 

Yes

 

 

 

Lached

Item

Name

Characteristic

 

1

Ignition

(The Ignition signal controlled by the voltage signal from the key)

1)     Ignition=OFF, Nothing happens£¬waiting for Ignition signal ON¡£

2)     Ignition=ON£¬wait for 3-4s£¬open £«5VSB output£¬after another 1s the MCU sends an ¡±ON¡± signal to the motherboard via the 2 wires connected to the motherboard¡®s ON/OFF pins. The motherboard will turn ON and your system should start booting¡£

3)     Ignition=ON£¬ nothing happens£¬your computer will remain ON.

4)     Ignition=OFF ,wait about 10s and then it turned motherboard OFF by sending a signal to the motherboard¡¯s ON/OFF switch. Your computer should turn off gracefully. During this time, power will still be available for your PC to perform shutdown¡£

5£©Ignition=OFF after 10s. Power will still be provided for another 50s, long enough for most soft shutdown processes. In the event where the shutdown processes is hanging, power will be shutdown hard, turn off your computer¡¯s main power source to prevent battery drain.

6£©Go back to step 1£¬until ignition is turned ON again¡£

 

2

 

Controlled

motherboard

signal£¨PS-ON£©

PS-ON is to control motherboard ON/OFF switch for ¡®soft¡¯ start/stop sequence.. PS-ON is activated 5s after the ignition circuit is turned on and 10s after the ignition turned off.

 

 

3

 

 

Power good signal

£¨PG£©

The PG signal comes from the  No. pin8 of the 20pin output connector, it indicate the power supply working condition, this ¡®TTL¡¯ signal is the result of ¡°AND¡± relationship with DC output and DC input voltage . On working condition, if the DC input voltage is well within it¡¯s operation range, then the PG signal is sent out (PG is in H logic) after 100-500ms delay. If the DC input voltage down and below to 11V, or the one of DC output voltage out of it¡¯s normal range, then send out Power Fall signal (that is: PG is in L logic). The Power Fall signal fall to below 0.3V, should have 1ms (at least) before the +5V output down to 4.5V,. And the PG signal¡¯s slop during the rise up and fall down

Should be smooth and no any oscillation happened.  PG signal should have the capacity to drive 6 standard TTL loading.

Following is the under voltage level of each output:

 

4

 

 

Sleeping mode control

(ON/OFF)

The ON/OFF signal comes from the  No. pin14 of the 20pin output connector, is to control the power supply¡¯s working state. (Be active in ¡®L¡¯ level). If the ON/OFF signal is in floating, the power supply will have no output (except 5VSB ) and in sleeping mode . The 5VSB should be within the range of 4.75-5.25V under 1.5A loading condition, and no any audible noise can be heard. If the ON/OFF signal is shorted to ground, the power supply will be in normal working condition and have normal output voltage.

 

5

Battery Protection

The power supply will shutdown hard when the battery voltage below 11V, and the power supply will recovery ON when the battery voltage back and exceed 12V.

 

 

 

6

Hand control

The power output set by the jumper wire. when it¡¯s set in automation mode, the power supply will work according to the process of the item 1.

When it¡¯s set to hand control mode, it controlled by external switch:

1)     Ignition=OFF, Nothing happens£¬waiting for Ignition signal ON¡£

2)     Ignition=ON£¬wait for 3-4s£¬open £«5VSB output£¬the power supply go into sleeping mode, waiting for switch ON/OFF.

3)     Ignition=ON£¬press the switch button one time, sends an ¡±ON¡± signal to the motherboard .The motherboard will turn ON and your system should start booting¡£

4)     Ignition=ON, during power be in ON condition, press the switch button one time (<1s transient time). Nothing happens.

5)     Ignition=ON, during power be in ON condition, press the switch button for 3-4s, then send an ¡°OFF¡± signal to the motherboard, the power supply go into sleeping mode.

6)  Ignition=OFF, during power be in ON condition, wait about 10s and then it turned motherboard OFF by sending a signal to the motherboard¡¯s ON/OFF switch. Your computer should turn off gracefully. During this time, Power will still be provided for another 50s, long enough for most soft shutdown processes. In the event where the shutdown processes is hanging, power will be shutdown hard, turn off your computer¡¯s main power source to prevent battery drain.

7£© Ignition=OFF after 10s. during power be in OFF condition. Power will be shutdown include +5VSB output.

8£©Go back to step 1£¬until ignition is turned ON again¡£