- 您现在的位置：买卖IC网 > PDF目录11809 > MCP2210-I/MQ (Microchip Technology)IC CONVERTER USB-PCI 20-QFN PDF资料下载
参数资料
| 型号： | MCP2210-I/MQ |
| 厂商： | Microchip Technology |
| 文件页数： | 56/82页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER USB-PCI 20-QFN |
| 产品培训模块： | MCP2210 Evaluation Kit |
| 标准包装： | 73 |
| 应用： | 带 GPIO 的 USB 至 SPI 连接器 |
| 接口： | SPI，USB |
| 电源电压： | 3.3 V ~ 5.5 V |
| 封装/外壳： | 20-VQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（5x5） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页当前第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页
MCP2210
DS22288A-page 6
2011 Microchip Technology Inc.
In order to meet the inrush current requirements of the
USB 2.0 specifications, the total effective capacitance
appearing across VBUS and ground must be no more
than 10 F. If it is more than 10 F, some kind of inrush
limiting is required. For more details on Inrush Current
Limiting, see the current Universal Serial Bus Specifi-
cation.
According to the USB 2.0 specification, all USB devices
must also support a Low-Power Suspend mode. In the
USB Suspend mode, devices must consume no more
than 500 A (or 2.5 mA for high powered devices that
are remote wake-up capable) from the 5V VBUS line of
the USB cable.
The host signals the USB device to enter Suspend
mode by stopping all USB traffic to that device for more
than 3 ms.
The USB bus provides a 5V voltage. However, the USB
transceiver requires 3.3V for the signaling (on D+ and
D- lines).
During USB Suspend mode, the D+ or D- pull-up resis-
tor must remain active, which will consume some of the
allowed suspend current budget (500 A/2.5 mA).
The VUSB pin is required to have an external bypass
capacitor. It is recommended that the capacitor be a
ceramic cap, between 0.22 and 0.47 F.
Figure 1-3 shows a circuit where the MCP2210 internal
LDO is used to provide 3.3V to the USB transceiver.
The voltage on the VDD affects the voltage levels onto
the GP and SPI module pins (GP8-GP0, MOSI, MISO
and SCK). With VDD at 5V, these pins will have a logic
‘1’ of 5V with the variations specified in Section 4.1
FIGURE 1-3:
TYPICAL POWER SUPPLY
OPTION USING THE 5V
PROVIDED BY THE USB
1.5.2.3
3.3V – Self Powered
Typically, many embedded applications are using 3.3V
or lower power supplies. When such an option is avail-
able in the target system, MCP2210 can be powered
up (VDD) from the existing power supply rail. The typi-
cal connections for MCP2210 powered from 3.3V rail
are shown in Figure 1-4.
In this example MCP2210 has both VDD and VUSB lines
tied to the 3.3V rail. These tied connections disable the
internal USB transceiver LDO of the MCP2210 to
regulate the power supply on VUSB pin. Another
consequence is that the ‘1’ logical level on the GP and
SPI pins will be at the 3.3V level, in accordance with the
variations
specified
in
FIGURE 1-4:
USING AN EXTERNALLY
PROVIDED 3.3V POWER
SUPPLY
LDO
3.3V
USB
Transceiver
D+
VDD
VUSB
D-
IN
OUT
5V (USB Bus)
or external
power supply
LDO
3.3V
D+
VDD
VUSB
D-
IN
OUT
5V (USB Bus)
or external
power supply
External
USB
Transceiver
3.3V
LDO
相关PDF资料 |
PDF描述 |
|---|---|
| MCP2210-I/SS | IC CONVERTER USB-PCI 20-SSOP |
| MCP2210-I/SO | IC CONVERTER USB-PCI 20-SOIC |
| V28C48H100B3 | CONVERTER MOD DC/DC 48V 100W |
| VI-BTN-IX-F3 | CONVERTER MOD DC/DC 18.5V 75W |
| V28C48H100B | CONVERTER MOD DC/DC 48V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2210-I-SO | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB-to-SPI Protocol Converter with GPIO (Master Mode) |
| MCP2210-I-SS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:USB-to-SPI Protocol Converter with GPIO (Master Mode) |
| MCP2210T-I/MQ | 功能描述:USB 接口集成电路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MCP2210T-I/SO | 功能描述:USB 接口集成电路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MCP2210T-I/SS | 功能描述:USB 接口集成电路 USB to SPI Protocol Converter RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
发布紧急采购，3分钟左右您将得到回复。