BD4155FV 查看數據表（PDF） - ROHM Semiconductor

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BD4155FV

Power Switch IC for ExpressCard™

ROHM Semiconductor 

BD4155FV

Technical Note

●Reference data

OUTPUT CONDITION LIST(Protect Circuit)

Condition

CPxx#

UVLO(V3/V15) UVLO(V3AUX)

H

-

-

ON

OFF

-

ON

L

OFF

OFF

-

-

Thermal

-

OFF

ON

V3/V15

L

Hi-Z

L

H

Hi-Z

Output

V3AUX

L

H

L

H

Hi-Z

OUTPUT CONDITION LIST(Logic)

State

OFF

ON

↓

Stand-by

V3AUX_IN

0

1

V3_IN

0

x

Stand-by

1

x

ON

1

1

Input

V15_IN

SYSR

0

0

x

1→0

x

0

1

1

CPPE#

x

1

x

0

1

x

0

1

x

0

CPUSB#

x

1

0

x

1

0

x

1

0

x

Output

V3/V15

V3AUX

OFF

OFF

OFF

OFF

OFF

ON

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OUTPUT CONDITION LIST(PERST#)

State

V3AUX_IN V3_IN

OFF

0

0

Stand-by

1

x

V15_IN

0

x

ON

1

1

1

SYSR

0

0

1

Input

CPPE#

x

x

1

0

0

1

CPUSB#

x

x

1

x

x

0

Output

POWER

GOOD

PLT_RST#

EC_RST#

PERST#

x

x

x

L

x

x

x

L

x

x

x

L

NG

x

x

L

OK

0

0

L

1

L

OK

1

0

L

1

H

x

x

x

L

OUTPUT CONDITION LIST(PLL_CLKREQ#)

State

V3AUX_IN V3_IN

OFF

0

0

Stand-by

1

x

V15_IN

0

x

SYSR

0

0

ON

1

1

1

1

Input

CPPE#

x

x

1

0

0

1

CPUSB#

POWER EC_

EC_

GOOD CLKREQ# CLKEN#

x

x

x

x

x

x

x

x

1

x

x

x

x

NG

x

x

0

OK

0

1

x

0

OK

1

1

0

x

x

x

Output

PLL_

CLKREQ#

Hi-Z

L

H

H

L

H

H

H

H

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6/16

2010.04 - Rev.B

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