Datasheet > BD4154FV_09

BD4154FV_09

更新时间： 2022-12-17 02:41:59

品牌	Logo	应用领域
罗姆 - ROHM		开关电源开关
页数	文件大小	规格书
16页	451K
描述
Power Switch IC for ExpressCardTM

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数据手册

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BD4154FV_09 数据手册

Technical Note

BD4154FV

●Timing Chart

Power ON/OFF Status of ExpressCard^TM

ExpressCard^TMModule Status

System Status

Power Switch Status

Primary

Auxiliary

Primary(+3.3V and +1.5V)

Auxiliary(3.3V Aux)

OFF

Don’t care

OFF

De-asserted

Asserted

OFF

De-asserted

Asserted Before This

Asserted After This

OFF

ExpressCard^TMStates Transition Diagram

SYSR=L

SYSR=H⇔L

CP#=H

CP#=L→H

SYSR=H

CP#=H→L

SYSR=L

CP#=H⇔L

SYSR=L→H

CP#=L

SYSR=H→L

CP#=L

V3AUX=OFF

V15=V3=OFF

V3AUX=ON

V15=V3=ON

V3AUX=ON

V15=V3=OFF

SYSR=L→H

SYSR=H

CP#=L

CP#=L→H

SYSR=H→L

CP#=L

SYSR=H

CP#=H

SYSR=L

⇔

CP#=L

System Status

Card Status

Stand-by Status

ON Status

:SYSR=L

Card Asserted Status

:CP#=L

:CP#=H

:SYSR=H

Card De-asserted Status

From ON to Stand-by Status

From Stand-by to ON Status

:SYSR=H→L

:SYSR=L→H

From De-asserted to Asserted Status :CP#=H→L

From Asserted to De-asserted Status :CP#=L→H

www.rohm.com

2009.05 - Rev.A

8/15

1...5 6 789 10 11...16

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