Rainbow-electronics MAX5958 Manual do Utilizador descarregar pdf (Página 7)

MAX5957/MAX5958

Triple PCI Express, Hot-Plug Controllers

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Typical Operating Characteristics (continued)

12VIN

= V

12S_+

= 12V, V

3.3S_+

= V

3.3S_-

= V

3.3AUXIN

= V

ON_

= V

AUXON_

= V

FON_

= 3.3V, PWRGD_ = FAULT_ = PORADJ = TIM =

OUTPUT_ = OPEN, INPUT_ = PRES-DET_ = PGND = GND. See the

Typical Application Circuit

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FAULT CONDITION ON 3.3V MAIN OUTPUT

(AUTORESTART OPTION)

MAX5957 toc17

3.3G_

10V/div

FAULT_

5V/div

3.3V MAIN OUTPUT CURRENT

2A/div

100ms/div

3.3V OUTPUT VOLTAGE

5V/div

RESTART

LOAD

STEP TO 0.5Ω

FAULT CONDITION ON AUXILIARY OUTPUT

(AUTORESTART OPTION)

MAX5957 toc18

FAULT_

2V/div

3.3VAUXO_ OUTPUT CURRENT

500mA/div

100ms/div

3.3VAUXO_ OUTPUT VOLTAGE

2V/div

RESTART

LOAD

STEP TO 4Ω

FAULT CONDITION ON 12V OUTPUT

(LATCH OPTION MAX5958)

MAX5957 toc19

12G_

20V/div

FAULT_

5V/div

12V OUTPUT CURRENT

5A/div

100ms/div

12V OUTPUT VOLTAGE

10V/div

LOAD

STEP TO 1.5Ω

FAULT CONDITION ON 12V OUTPUT

MAX5957 toc20

12G_

20V/div

FAULT_

5V/div

12V OUTPUT CURRENT

5A/div

4ms/div

12V OUTPUT VOLTAGE

10V/div

LOAD

STEP

TO 1.5Ω

FAULT

FAULT CONDITION ON 3.3V OUTPUT

(LATCHOFF OPTION)

MAX5957 toc21

3.3G_

10V/div

FAULT_

5V/div

3.3V OUTPUT CURRENT

2A/div

40ms/div

3.3V OUTPUT VOLTAGE

5V/div

LOAD

STEP TO 0.5Ω

FAULT CONDITION ON 3.3V MAIN OUTPUT

MAX5957 toc22

3.3G_

10V/div

FAULT_

5V/div

3.3V OUTPUT CURRENT

2A/div

4ms/div

3.3V OUTPUT VOLTAGE

5V/div

LOAD

STEP TO 0.5Ω

FAULT

1 2 3 4 5 6 7 8 9 10 11 12 ... 24 25

MAX5957/MAX5958 1

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