参数资料
型号: BD4154FV-E2
厂商: Rohm Semiconductor
文件页数: 4/18页
文件大小: 0K
描述: IC POWER SWITCH SSOP-B20
标准包装: 2,500
应用: PCMCIA,ExpressCard?
电流 - 电源: 250µA
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-SSOP-B
包装: 带卷 (TR)
BD4154FV
● Reference data
Technical Note
CPPE#(2V/div)
V3(2V/div)
CPPE#(2V/div)
V3(2V/div)
SYSR(2V/div)
V3(2V/div)
V3AUX(2V/div)
V3AUX(2V/div)
V3AUX(2V/div)
R V3 =3.3 Ω
R V3AUX =13.2 Ω
R V15 =3 Ω
V15(1V/div)
V15(1V/div)
V15(1V/div)
5.0ms/div
Fig.1 Card Assert/ De-assert
(Active)
SYSR(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
5.0ms/div
5.0ms/div
Fig.2 Card Assert/De-assert
(Standby)
CPPE#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500 μ s/div
5.0ms/div
Fig.3 System Active ? Standby
( Card Present)
CPUSB#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500 μ s/div
Fig.4 System Active ? Standby
(No Card)
EN(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500 μ s/div
Fig.5
Wakeup Wave Form
(Card Assert)
SYSR(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500 μ s/div
Fig.6
Wakeup Wave Form
(USB2.0 Assert)
CPPE#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500μs/div
Fig.7
Wakeup Wave Form
Fig.8
Wakeup Wave Form
Fig.9
Power Down Wave Form
(Shut Down → Active)
CPUSB#(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
(Standby → Active)
EN(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
(Card De-assert)
SYSR(2V/div)
V3(2V/div)
V3AUX(2V/div)
V15(1V/div)
500μs/div
Fig.10 Power Down Wave Form
(USB2.0 De-assert)
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
Fig.11
500μs/div
Power Down Wave Form
(Active → Shut Down)
4/15
Fig.12
5.0ms/div
Power Down Wave Form
(Active → Standby)
2010.04 - Rev.B
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