BD4156MUV_09 ROHM [Rohm], BD4156MUV_09 Datasheet - Page 4

• Manufacturer Part Number: BD4156MUV_09
• Description: Power Switch for ExpressCardTM
• Manufacturer: ROHM [Rohm]

●Reference data
○
BD4156MUV
c
www.rohm.com
2009 ROHM Co., Ltd. All rights reserved.
Fig.10 Power Down Wave Form
Fig.1
Fig.7
(Shut Down→Active)
(USB2.0 De-assert)
Fig.4 System Active
⇔Standby(No Card)
Card Assert/ De-assert
Wakeup Wave Form
CPPE#(2V/div)
V3AUX(2V/div)
V3AUX(2V/div)
SYSR(2V/div)
V15(1V/div)
V15(1V/div)
V3(2V/div)
V3(2V/div)
(Active)
5.0ms/div
500μs/div
500μs/div
5.0ms/div
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
CPUSB#(2V/div)
EN(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
Fig.11
Fig.8
Fig.5 Wakeup Wave Form
Fig.2
(Active→Shut Down)
(Standby→Active)
Power Down Wave Form
(Card Assert)
Wakeup Wave Form
CPPE#(2V/div)
V3AUX(2V/div)
Card Assert/De-assert
4/23
V15(1V/div)
V3(2V/div)
500μs/div
500μs/div
5.0ms/div
500μs/div
(Standby)
SYSR(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/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.9 Power Down Wave Form
Fig.6 Wakeup Wave Form
⇔Standby( Card Present)
Fig.3
(Active→Standby)
(USB2.0 Assert)
Power Down Wave Form
(Card De-assert)
V3AUX(2V/div)
SYSR(2V/div)
V15(1V/div)
Technical Note
2009.05 - Rev.A
V3(2V/div)
500μs/div
500μs/div
System Active
5.0ms/div
5.0ms/div
CPUSB#(2V/div)
CPPE#(2V/div)
V15(1V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
V3(2V/div)
V3AUX(2V/div)
SYSR(2V/div)
V3AUX(2V/div)
V3(2V/div)
V15(1V/div)
R
R
R
V3
V3AUX
V15
=3.3Ω
=3Ω
=13.2Ω