BD4154FV_10 ROHM [Rohm], BD4154FV_10 Datasheet - Page 4

• Manufacturer Part Number: BD4154FV_10
• Description: Power Switch IC for ExpressCard
• Manufacturer: ROHM [Rohm]

●Reference data
BD4154FV
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Fig.10 Power Down Wave Form
Fig.1 Card Assert/ De-assert
Fig.7
Fig.4 System Active⇔Standby
(Shut Down→Active)
(USB2.0 De-assert)
Wakeup Wave Form
V3AUX(2V/div)
CPPE#(2V/div)
V3AUX(2V/div)
SYSR(2V/div)
V3(2V/div)
V15(1V/div)
V3(2V/div)
V15(1V/div)
(Active)
5.0ms/div
5.0ms/div
500μs/div
500µs/div
(No Card)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
CPUSB#(2V/div)
EN(2V/div)
V3AUX(2V/div)
V15(1V/div)
V3(2V/div)
Fig.11
Fig.2 Card Assert/De-assert
Fig.8
Fig.5 Wakeup Wave Form
(Active→Shut Down)
(Standby→Active)
Power Down Wave Form
(Card Assert)
Wakeup Wave Form
CPPE#(2V/div)
(Standby)
V3AUX(2V/div)
4/15
V3(2V/div)
V15(1V/div)
5.0ms/div
500μs/div
500µs/div
500μs/div
SYSR(2V/div)
V15(1V/div)
V3(2V/div)
V3AUX(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
EN(2V/div)
CPPE#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
Fig.12
Fig.3 System Active⇔Standby
Fig.9 Power Down Wave Form
Fig.6 Wakeup Wave Form
(Active→Standby)
(USB2.0 Assert)
( Card Present)
Power Down Wave Form
(Card De-assert)
V3AUX(2V/div)
SYSR(2V/div)
V15(1V/div)
Technical Note
2010.04 - Rev.B
V3(2V/div)
500µs/div
500μs/div
5.0ms/div
5.0ms/div
CPUSB#(2V/div)
CPPE#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
V15(1V/div)
V3(2V/div)
V3AUX(2V/div)
V3(2V/div)
V3AUX(2V/div)
SYSR(2V/div)
V15(1V/div)
R
R
R
V3
V3AUX
V15
=3.3Ω
=3Ω
=13.2Ω