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参数资料
| 型号： | FSA9280AUMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 26/30页 |
| 文件大小： | 0K |
| 描述： | IC USB MULTIMEDIA SWITCH 20-UMLP |
| 标准包装： | 1 |
| 功能： | USB 开关 |
| 电路： | 3:1 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 4.4 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-UMLP（4x3） |
| 包装： | 标准包装 |
| 其它名称： | FSA9280AUMXDKR |
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2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA9280A Rev 1.1.0
5
FS
A9
2
80A
—
US
B
Po
rt
Mu
lt
im
edia
Swi
tc
h
,
Fea
turi
n
g
Automatic
Se
lect
a
nd
Ac
ces
s
ory
Detection
1. Functionality
The FSA9280A offers a complete solution for a single 5-pin
USB interface. Through built-in detection algorithms that
monitor the ID and VBUS pins of the USB interface, the
FSA9280A allows seamless sharing of the interface between
HS USB, FS USB or UART, and audio sources. The
FSA9280A also offers a complete solution for multiple types
of USB chargers. The FSA9280A detects different USB
charger types and has a dedicated charger IC interface to
allow charging through the devices and dynamic current
control by the charger IC based on the type of charger
detected. Additional over-current protection (OCP) and up to
28V over-voltage tolerance (OVT) is provided.
The detection features are capable of monitoring the ID pin of
the USB interface to detect a full array of USB accessories,
including audio accessories with up to 12 buttons.
1.1. Functional Overview
The
FSA9280A
is
designed
for
minimal
software
requirements for proper operation. The flow diagram below
shows the basic steps of operation and contains references
to more detailed information.
Flow Diagram
State
Datasheet
Section
Description
Power-up & Reset
Section 2
Applying power to the device and reset states
of the device.
I
2C
Section 3
Communication with device through I
2C
(which can be bypassed during power-up).
Configuration
Section 4
Configuring the device using I
2C and the
internal registers (which can be bypassed
during power-up).
Detection
Section 5
How the detection of the accessory is done
including attachment and detachment.
Processor
Communication
Section 6
How the detection of the accessory is
indicated to the processor.
Switch
Configuration
Section 7
Configuration of switches based on detection.
Active Signal
Section 8
Signal performance of selected configuration
Power-up &
Reset
Accessory
Plug-in
I2C
Detection
Processor
Communication
Switch
Configuration
Active Signals
Accessory
Detached
Configuration
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FSA9280AUMX_12 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:USB Port Multimedia Switch Featuring Automatic Select and Accessory Detection |
| FSA9280AUMX_F065 | 功能描述:开关 IC - 各种 USB Port 3:1 Switch RoHS:否 制造商:Fairchild Semiconductor 开启电阻（最大值）: 电源电压-最大:4.4 V 电源电压-最小:2.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:WLCSP-9 封装:Reel |
| FSA9285AUCX | 制造商:Fairchild Semiconductor Corporation 功能描述:IC MULTIMEDIA SWITCH 20-WLCSP |
| FSA9285UCX | 功能描述:电源开关 IC - USB MCPC compliant USB multimedia switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| FSA9288A | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:USB 2.0 Accessory Detection Switch with 28V FET |
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