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參數(shù)資料
| 型號： | TPS2020P |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | POWER-DISTRIBUTION SWITCHES |
| 中文描述： | 配電開關 |
| 文件頁數(shù)： | 20/23頁 |
| 文件大?。?/td> | 377K |
| 代理商： | TPS2020P |
TPS2020, TPS2021, TPS2022, TPS2023, TPS2024
POWER-DISTRIBUTION SWITCHES
SLVS175A – DECEMBER 1998 – REVISED NOVEMBER 1999
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
generic hot-plug applications (see Figure 40)
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. Because of the controlled rise times and fall times of the TPS202x series, 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 TPS202x 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 guarantees a soft start with a controlled rise time for every insertion
of the card or module.
Power
Supply
Block of
Circuitry
TPS2024
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 40. Typical Hot-Plug Implementation
By placing the TPS202x between the V
CC
input and the rest of the circuitry, the input power will reach this device
first after insertion. The typical rise time of the switch is approximately 9 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PDF資料 |
PDF描述 |
|---|---|
| TPS2022P | POWER-DISTRIBUTION SWITCHES |
| TPS202X | USB POWER DISTRIBUTION |
| TPS204X | USB POWER DISTRIBUTION |
| TPS203X | USB POWER DISTRIBUTION |
| TPS2032P | POWER-DISTRIBUTION SWITCHES |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2020PE4 | 功能描述:電源開關 IC - USB 0.22A 2.7-5.5V Sngl 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 |
| TPS2020-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:POWER-DISTRIBUTION SWITCHES |
| TPS2021 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:POWER-DISTRIBUTION SWITCHES |
| TPS2021D | 功能描述:電源開關 IC - USB 0.66A 2.7-5.5V Sngl 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 |
| TPS2021D | 制造商:Texas Instruments 功能描述:IC 0.9A PWR DIST SWITCH 8-SOIC 制造商:Texas Instruments 功能描述:IC, 0.9A PWR DIST SWITCH 8-SOIC 制造商:Texas Instruments 功能描述:IC, 0.9A PWR DIST SWITCH 8-SOIC; Primary Input Voltage:5.5V; No. of Outputs:1; Output Current:600mA; Voltage Regulator Case Style:SOIC; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; SVHC:No SVHC ;RoHS Compliant: Yes |
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