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參數(shù)資料
| 型號： | TPS2481PW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO20 |
| 封裝： | GREEN, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 10/56頁 |
| 文件大?。?/td> | 1381K |
| 代理商： | TPS2481PW |
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SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
www.ti.com
The TPS2480/81 responds rapidly to the short circuit as seen in Figure 15. The falling OUT voltage is the result
of the external FET and CO currents through the short circuit impedance. The internal GATE clamp causes the
GATE voltage to follow the output voltage down and subsequently limits the negative VDS to 1.2 V. The rapidly
rising fault current overdrives the GATE amplifier causing it to overshoot and rapidly turn the external FET off by
sinking current to ground. The external FET slowly turns back on as the GATE amplifier recovers; the external
FET then settles to an equilibrium operating point determined by the power limiting circuit.
Figure 15. Current Limit Onset
Minimal input voltage overshoot appears in Figure 15 because a local 100-mF bypass capacitor and very short
input leads were used. The input voltage would overshoot as the input current abruptly drops in a typical
application due to the stored energy in the input distribution inductance. The exact waveforms seen in an
application depend upon many factors including parasitics of the voltage distribution, circuit layout, and the short
itself.
18
Copyright 2010, Texas Instruments Incorporated
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2481PWR | 功能描述:熱插拔功率分布 Pos VltgInt Prot Dev/Hotswap Cntrlr RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2482PW | 制造商:Texas Instruments 功能描述:Hot Swap Controller 1-CH 80V 20-Pin TSSOP Tube 制造商:Texas Instruments 功能描述:IC CTRLR HOT SWAP 9-36V 20TSSOP 制造商:Texas Instruments 功能描述:36V Hotswap Cntlr w/ Digital Pwr Monitor |
| TPS2482PWR | 制造商:Texas Instruments 功能描述:Hot Swap Controller 1-CH 80V 20-Pin TSSOP T/R 制造商:Texas Instruments 功能描述:36V Hotswap Cntlr w/ Digital Pwr Monitor |
| TPS2483EVM-157 | 功能描述:電源管理IC開發(fā)工具 TPS2483 EVAL MOD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS2483PW | 功能描述:Hot Swap Controller, Monitor 1 Channel General Purpose 20-TSSOP 制造商:texas instruments 系列:- 包裝:管件 零件狀態(tài):有效 類型:熱交換控制器，監(jiān)控器 通道數(shù):1 內部開關:無 應用:通用 特性:自動重試，I2C，UVLO 可編程特性:限流，故障超時 電壓 - 電源:9 V ~ 80 V 電流 - 輸出（最大值）:- 工作溫度:-40°C ~ 85°C 電流 - 電源:2mA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商器件封裝:20-TSSOP 功能引腳:EN，PG，PROG，TIMER 標準包裝:70 |
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