參數(shù)資料
型號(hào)： TPS2068IDGNRQ1
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDSO8
封裝： GREEN, PLASTIC, MSOP-8
文件頁(yè)數(shù)： 9/24頁(yè)
文件大?。?/td> 756K
代理商： TPS2068IDGNRQ1
Power
Supply
0.1
F
1000
F
Optimum
2.7 V to 5.5 V
PC Board
Overcurrent Response
TPS2060
OC1
GND
EN1
IN
EN2
OUT1
OUT2
OC2
Block of
Circuitry
Block of
Circuitry
www.ti.com ................................................................................................................................................................................................ SLVS999 – AUGUST 2009
Figure 24. Typical Hot-Plug Implementation
By placing the TPS2068 between the VCC input and the rest of the circuitry, the input power reaches these
devices first after insertion. The typical rise time of the switch is approximately 1 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.
DETAILED DESCRIPTION
Power Switch
The power switch is an N-channel MOSFET with a low on-state resistance. Configured as a high-side switch, the
power switch prevents current flow from OUT to IN and IN to OUT when disabled. The power switch supplies a
minimum current of 1.5 A.
Charge Pump
An internal charge pump supplies power to the driver circuit and provides the necessary voltage to pull the gate
of the MOSFET above the source. The charge pump operates from input voltages as low as 2.7 V and requires
little supply current.
Driver
The driver controls the gate voltage of the power switch. To limit large current surges and reduce the associated
electromagnetic interference (EMI) produced, the driver incorporates circuitry that controls the rise times and fall
times of the output voltage.
Enable (EN)
The logic enable disables the power switch and the bias for the charge pump, driver, and other circuitry to reduce
the supply current. The supply current is reduced to less than 1
μA when a logic high is present on EN. A logic
zero input on EN restores bias to the drive and control circuits and turns the switch on. The enable input is
compatible with both TTL and CMOS logic levels.
Overcurrent (OC)
The OC open-drain output is asserted (active low) when an overcurrent or overtemperature condition is
encountered. The output remains asserted until the overcurrent or overtemperature condition is removed. A
10-ms deglitch circuit prevents the OC signal from oscillation or false triggering. If an overtemperature shutdown
occurs, the OC is asserted instantaneously.
Copyright 2009, Texas Instruments Incorporated
17
Product Folder Link(s): TPS2068-Q1
相關(guān)PDF資料
PDF描述
TPS2074DBG4 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
TPS2100DBV 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
TPS2100DRG4 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
TPS2101DRG4 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
TPS2100DG4 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2068-Q1 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:CURRENT-LIMITED POWER-DISTRIBUTION SWITCH
TPS2069 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
TPS2069C 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Current-Limited, Power-Distribution Switches Deglitched Fault Reporting
TPS2069CDBVR 功能描述:電源開(kāi)關(guān) IC - 配電 Sgl Ch Current-Ltd USB Pwr Disti Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
TPS2069CDBVT 功能描述:電源開(kāi)關(guān) IC - 配電 Sgl Ch Current-Ltd USB Pwr Disti Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*