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参数资料
| 型号： | CP2103-GM |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 8/20页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BRIDGE USB-UART 28QFN |
| 产品培训模块： | USB Protocol Products USBXpress CP21xx USB Bridge |
| 标准包装： | 73 |
| 应用： | USB |
| 接口： | USB |
| 电源电压： | 3 V ~ 3.6 V |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN（5x5） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 627 (CN2011-ZH PDF) |
| 配用： | 336-1163-ND - KIT EVAL FOR CP2103 USB TO UART |
| 其它名称： | 336-1164 |
CP2103
16
Rev. 1.0
9. Voltage Regulator
The CP2103 includes an on-chip 5 to 3 V voltage regulator. This allows the CP2103 to be configured as either a
USB bus-powered device or a USB self-powered device. These configurations are shown in Figures 7 and 8.
When enabled, the 3 V voltage regulator output appears on the VDD pin and can be used to power external 3 V
devices. See Table 11 for the voltage regulator electrical characteristics.
Alternatively, if 3 V power is supplied to the VDD pin, the CP2103 can function as a USB self-powered device with
the voltage regulator disabled. For this configuration, it is recommended that the REGIN input be tied to the 3 V net
to disable the voltage regulator. This configuration is shown in Figure 9.
The USB max power and power attributes descriptor must match the device power usage and configuration. See
“AN144: CP21xx Device Customization Guide” for information on how to customize USB descriptors for the
CP2103.
Note: It is recommended that additional decoupling capacitance (e.g., 0.1 F in parallel with 1.0 F) be provided on the REGIN
input.
Figure 7. Configuration 1: USB Bus-Powered
Table 11. Voltage Regulator Electrical Specifications
–40 to +85 °C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Input Voltage Range
4.0
—
5.25
V
Output Voltage
Output Current = 1 to 100 mA*
3.0
3.3
3.6
V
VBUS Detection Input Threshold
1.0
1.8
4.0
V
Bias Current
—
110
—
A
*Note: The maximum regulator supply current is 100 mA.
Voltage Regulator (REG0)
5 V In
3 V Out
VBUS Sense
REGIN
VBUS
From VBUS
To 3 V
Power Net
Device
Power Net
VDD
CP2103
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相关代理商/技术参数 |
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| CP2103-GMR | 功能描述:输入/输出控制器接口集成电路 USB-TO-UART BRIDGE RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| CP2104 | 制造商:SILABS 制造商全称:SILABS 功能描述:USB DRIVER CUSTOMIZATION |
| CP2104EK | 功能描述:界面开发工具 Evaluation kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| CP2104-F03-GM | 功能描述:输入/输出控制器接口集成电路 USB to UART bridge RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| CP2104-F03-GMR | 功能描述:输入/输出控制器接口集成电路 USB to UART bridge RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
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