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參數(shù)資料
| 型號： | TPS2049DRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 471K |
| 代理商： | TPS2049DRG4 |
1
FEATURES
IN
GND
IN
EN
OUT
OC
DESCRIPTION
www.ti.com......................................................................................................................................... SLVS713A – OCTOBER 2006 – REVISED SEPTEMBER 2007
SINGLE-CHANNEL 100 mA POWER SWITCH
SOIC-8 Package
100-mA Continuous Current
Ambient Temperature Range: –40°C to 85°C
600-m High-Side MOSFET
2 S Response Time to Short Circuit
Thermal and Short-Circuit Protection
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
43 A Quiescent Supply Current
1-A Maximum Standby Supply Current
The TPS2049 power-distribution switch is intended for applications where heavy capacitive loads and short
circuits are likely to be encountered. This device incorporates a 600-m
N-channel MOSFET power switch for
power-distribution systems that require only one power distribution path. The switch is controlled by a logic
enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times
and fall times to minimize current surges during switching. The charge pump requires no external components
and allows operation from supplies as low as 2.7V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current
to a safe level by switching into a constant-current mode, pulling the overcurrent (OC) logic output low. When
continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off
until valid input voltage is present. This power-distribution switch is designed to set current limit at 150mA
typically.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2049EVM-290 | 功能描述:交換機 IC 開發(fā)工具 TPS2049EVM-290 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
| TPS204X | 制造商:TI 制造商全稱:Texas Instruments 功能描述:USB POWER DISTRIBUTION |
| TPS2051 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:POWER-DISTRIBUTION SWITCHES |
| TPS2051A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:0.7A. 2.7-5.5V Single Hi-Side MOSFET. Fault Report. Act-High Enable |
| TPS2051AD | 功能描述:電源開關(guān) IC - USB 0.7A 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 |
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