MAX5957LETN+ datasheet(7/25 Pages) MAXIM

Part #	MAX5957LETN+

Description	Triple PCI Express, Hot-Plug Controllers

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Manufacturer	MAXIM [Maxim Integrated Products]

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Triple PCI Express, Hot-Plug Controllers

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7

Typical Operating Characteristics (continued)

(V12VIN = V12S_+ = 12V, V3.3S_+ = V3.3S_- = V3.3AUXIN = VON_ = VAUXON_ = VFON_ = 3.3V, PWRGD_ = FAULT_ = PORADJ = TIM =

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

Typical Application Circuit.)

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7

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

tRESTART

RLOAD STEP TO 0.5

Ω

0A

0V

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

tRESTART

RLOAD STEP TO 4

Ω

0A

0V

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

RLOAD STEP TO 1.5

Ω

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

RLOAD STEP

TO 1.5

Ω

tFAULT

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

RLOAD STEP TO 0.5

Ω

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

RLOAD

STEP TO 0.5

Ω

tFAULT

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