參數(shù)資料
型號： TPS2056P
廠商： Texas Instruments, Inc.
英文描述： DUAL CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
中文描述： 雙限流配電開關(guān)
文件頁數(shù)： 18/23頁
文件大?。?/td> 410K
代理商： TPS2056P
TPS2046, TPS2056
DUAL CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS183 – APRIL 1999
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
IN
OC1
EN1
OC2
EN2
GND
1
0.1
μ
F
2
8
3
5
4
7
6
0.1
μ
F
10
μ
F
0.1
μ
F
10
μ
F
GND
OUT1
OUT2
TPS2046
Power Supply
3.3 V
D+
D–
VBUS
Internal
Function
USB
Control
10
μ
F
Internal
Function
Figure 31. High-Power Bus-Powered Function
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.
Bus-Powered Hubs must:
–
Enable/disable power to downstream ports
–
Power up at <100 mA
–
Limit inrush current (<44
and 10
μ
F)
Functions must:
–
Limit inrush currents
–
Power up at <100 mA
The feature set of the TPS2046 and TPS2056 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 32).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TPS2057 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRIPLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
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TPS2057AD 功能描述:電源開關(guān) IC - USB Tr .345A 2.7-5.5V Hi RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube
TPS2057ADG4 功能描述:電源開關(guān) IC - USB 0.345A 2.7-5.5V Trpl Hi-Side MOSFET RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube
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