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參數(shù)資料
| 型號： | AT43312A |
| 廠商： | Atmel Corp. |
| 英文描述： | Self- and Bus-powered USB Hub Controller(自供電和總線供電USB集線器控制器) |
| 中文描述： | 自和總線供電的USB集線器控制器（自供電和總線供電的USB集線器控制器） |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 249K |
| 代理商： | AT43312A |
AT43312A
6
Bus Powered Mode
In the bus powered mode, all the power for the hub itself as
well as the downstream ports is supplied by the root hub or
upstream hub through the USB. Only 100 mA is available
for each of the hub’s downstream devices and therefore
only low power devices are supported.
The power switch and overcurrent protection works exactly
like the self-powered mode, except that the allowable
switch resistance is higher: 700m
or less under the worst
case condition.
The diagrams of Figure 2 and Figure 3 show examples of
the power supply and management connections for a typi-
cal AT43312A port in the self-powered mode and bus
powered mode.
Figure 2.
Self-powered Hub Power Supply
Figure 3.
Bus Powered Hub Power Supply
GND
POWER SUPPLY
PORT_POWER
5V OUTPUT
GND
SWITCH
IN
OUT
F
C
To
Downstream
Device
G
V
AT43312A
P
O
LPSTAT
U2
U1
PS5
BUS_POWER
GND
R1
47K
GND
PORT POWER
SWITCH
IN
OUT
F
C
To
Downstream
Device
G
V
AT43312A
P
O
LPSTAT
U2
U1
BUS_POWER
GND
相關PDF資料 |
PDF描述 |
|---|---|
| AT43312 | Self- and Bus- Powered USB Hub Controller |
| AT43320 | Full-speed USB Hub/Function Microcontroller |
| AT43DK301 | Low-Cost USB Hub Development Kit |
| AT43DK312A | USB Hub Development Kit |
| AT43USB320A-AC | Full-speed USB Microcontroller with an Embedded Hub |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT43312A_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Self- and Bus-Bus-powered USB Hub Controller |
| AT43312A-6AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS CONTROLLER |
| AT43312A-6PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS CONTROLLER |
| AT43312A-6SC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS CONTROLLER |
| AT43312A-AC | 功能描述:USB 接口集成電路 FULL FEATURED USB HUB CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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