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参数资料
| 型号： | TPS2042DRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | GREEN, PLASTIC, SOIC-8 |
| 文件页数： | 11/26页 |
| 文件大小： | 583K |
| 代理商： | TPS2042DRG4 |
TPS2042, TPS2052
DUAL POWER-DISTRIBUTION SWITCHES
SLVS173A – AUGUST 1998 – REVISED APRIL 1999
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
USB power-distribution requirements
USB can be implemented in several ways, and, regardless of the type of USB device being developed, several
power-distribution features must be implemented.
D Hosts/self-powered hubs must:
–
Current-limit downstream ports
–
Report overcurrent conditions on USB VBUS
D Bus-powered hubs must:
–
Enable/disable power to downstream ports
–
Power up at <100 mA
–
Limit inrush current (<44
and 10 F)
D Functions must:
–
Limit inrush currents
–
Power up at <100 mA
The feature set of the TPS2042 and TPS2052 allows them to meet each of these requirements. The integrated
current-limiting and overcurrent reporting is required by hosts and self-powered hubs. The logic-level enable
and controlled rise times meet the need of both input and output ports on bus-power hubs, as well as the input
ports for bus-power functions (see Figure 33).
相关PDF资料 |
PDF描述 |
|---|---|
| TPS2052DRG4 | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| TPS2049DRG4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2062QDGNRQ1 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2066ADRBR | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2066ADRG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2042P | 功能描述:电源开关 IC - USB Dual 1in 2out .7A 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 |
| TPS2042PE4 | 功能描述:电源开关 IC - USB 0.7A 2.7-5.5V Dual Hi-Side MOSFET 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 |
| TPS2043 | 制造商:TI 制造商全称:Texas Instruments 功能描述:POWER DISTRIBUTION SWITCHES |
| TPS2043A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:0.7A. 2.7-5.5V Triple (2In/3Out) Hi-Side MOSFET. Fault Report. Act-Low Enable |
| TPS2043AD | 功能描述:电源开关 IC - USB Tr .345A 2.7-5.5V Hi 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 |
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