- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄15876 > CP2101EK (Silicon Laboratories Inc)KIT DEVELOPMENT RS232 TO USB PDF資料下載
參數(shù)資料
| 型號： | CP2101EK |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT DEVELOPMENT RS232 TO USB |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 其它名稱： | 336-1076 CP2101EK-ND Q1572300 |
CP2101
Rev. 1.8
15
9. Voltage Regulator
The CP2101 includes an on-chip 5-to-3 V voltage regulator. This allows the CP2101 to be configured as
either a USB bus-powered device or a USB self-powered device. These configurations are shown in
Figure 9.1 and Figure 9.2. When enabled, the 3 V voltage regulator output appears on the VDD pin and can
be used to power external 3V devices. See Table 9.1 for the voltage regulator electrical characteristics.
Alternatively, if 3 V power is supplied to the VDD pin, the CP2101 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 9.3.
The USB max power and power attributes descriptor must match the device power usage and configura-
tion. See application note “AN144: CP2101 Customization Guide” for information on how to customize USB
descriptors for the CP2101.
Note:
It is recommended that additional decoupling capacitance (e.g., 0.1 F in parallel with 1.0 F) be pro-
vided on the REGIN input.
Table 9.1. 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
—
90
TBD
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
V
DD
CP2101
Figure 9.1. Configuration 1: USB Bus-Powered
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMC07DREN | CONN EDGECARD 14POS .100 EYELET |
| EMC12DRYH | CONN EDGECARD 24POS .100 EXTEND |
| ECC25DRXI | CONN EDGECARD 50POS DIP .100 SLD |
| RP15-4812SAW/N-HC | CONV DC/DC 15W 18-75VIN 12VOUT |
| EBC30DRAI | CONN EDGECARD 60POS R/A .100 SLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CP2101GM | 制造商: 功能描述: 制造商:AVNET 功能描述: 制造商:undefined 功能描述: |
| CP2101-GM | 功能描述:輸入/輸出控制器接口集成電路 USB TO UART BRIDGE RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2101-GMR | 功能描述:輸入/輸出控制器接口集成電路 USB TO UART BRIDGE RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2101R | 功能描述:輸入/輸出控制器接口集成電路 USB to UART Bridge RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| CP2102 | 功能描述:輸入/輸出控制器接口集成電路 USE 634-CP2102-GM RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。