參數(shù)資料
型號(hào)： 2045A
廠商： Texas Instruments, Inc.
英文描述： CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
中文描述： 限流配電開(kāi)關(guān)
文件頁(yè)數(shù)： 27/31頁(yè)
文件大?。?/td> 478K
代理商： 2045A
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
2045B10 制造商: 功能描述: 制造商:undefined 功能描述:
2045OO 制造商:BULGIN 制造商全稱:BULGIN 功能描述:Neon Indicatiors (Neon, LED and Filament Lamps)
2045ST 制造商:CTS Corporation 功能描述:SWIT DIP OFF-ON SPST 5 RAISED SLIDE 0.05A 24VDC GW 2.54MM SM - Rail/Tube
204-5ST 功能描述:DIP 開(kāi)關(guān)/ SIP 開(kāi)關(guān) SPST 5 switch sections RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開(kāi)關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole
2046 功能描述:罩類、盒類及殼類產(chǎn)品 Alum cover panel for 700 case RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級(jí): 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red
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