參數(shù)資料
型號(hào)： TPS2058ADRG4
廠商： Texas Instruments, Inc.
英文描述： CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
中文描述： 限流配電開關(guān)
文件頁數(shù)： 27/31頁
文件大小： 478K
代理商： TPS2058ADRG4
TPS2045A, TPS2046A, TPS2047A, TPS2048A
TPS2055A, TPS2056A, TPS2057A, TPS2058A
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS251A
–
SEPTEMBER 2000
–
REVISED FEBRUARY 2001
27
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
generic hot-plug applications (see Figure 31)
In many applications it may be necessary to remove modules or pc boards while the main unit is still operating.
These are considered hot-plug applications. Such implementations require the control of current surges seen
by the main power supply and the card being inserted. The most effective way to control these surges is to limit
and slowly ramp the current and voltage being applied to the card, similar to the way in which a power supply
normally turns on. Due to the controlled rise times and fall times of the TPS204xA and TPS205xA, these devices
can be used to provide a softer start-up to devices being hot-plugged into a powered system. The UVLO feature
of the TPS204xA and TPS205xA also ensures the switch will be off after the card has been removed, and the
switch will be off during the next insertion. The UVLO feature insures a soft start with a controlled rise time for
every insertion of the card or module.
Power
Supply
Block of
Circuitry
TPS2045A
GND
IN
IN
EN
OUT
OUT
OUT
OC
0.1
μ
F
1000
μ
F
Optimum
2.7 V to 5.5 V
PC Board
Overcurrent Response
Figure 31. Typical Hot-Plug Implementation (Example, TPS2045A)
By placing the TPS204xA and TPS205xA between the V
CC
input and the rest of the circuitry, the input power
will reach these devices first after insertion. The typical rise time of the switch is approximately 2.5 ms, providing
a slow voltage ramp at the output of the device. This implementation controls system surge currents and
provides a hot-plugging mechanism for any device.
相關(guān)PDF資料
PDF描述
TPS2056P DUAL CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
TPS2058 "0.345A
TPS2058D QUAD CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
TPS2206DAP DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER
TPS2206DB DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2058AEVM-295 功能描述:交換機(jī) IC 開發(fā)工具 TPS2058AEVM-295 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評(píng)估:MAX4984E 工作電源電壓:2.8 V to 5.5 V
TPS2058D 功能描述:電源開關(guān) IC - USB Quad 2in 3 out .7A 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
TPS2058DG4 功能描述:電源開關(guān) IC - USB DUAL 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
TPS2058DR 功能描述:電源開關(guān) IC - USB Quad 2in 3 out .7A 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
TPS2058DRG4 功能描述:電源開關(guān) IC - USB DUAL 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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