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參數資料
| 型號： | TPS2480PW |
| 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： | 6/56頁 |
| 文件大小： | 1381K |
| 代理商： | TPS2480PW |
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SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
www.ti.com
APPLICATION INFORMATION
Basic Operation
The TPS2480/81 provides all the features needed for a positive hotswap controller.
These features include:
1. Under-voltage lockout;
2. Adjustable (system-level) enable;
3. Turn-on inrush limit;
4. High-side gate drive for an external N-channel MOSFET;
5. MOSFET protection (power limit and current limit);
6. Adjustable overload timeout (also called an electronic circuit breaker);
7. Charge-complete indicator for downstream converter sequencing; and
8. Optional automatic restart mode.
The TPS2480/81 features superior power-limiting, MOSFET protection that allows independent control of current
limit (to set maximum full-load current), power limit and overload time (to keep FET in its SOA), and overload
time (to control case temperature rise). The typical application circuit, and oscilloscope plots of Figure 12 and
Figure 16 demonstrate many of the functions described above.
Board Plug-In (Figure 12)
Only the bypass capacitor charge current and small bias currents are evident when a board is first plugged in.
The TPS2480/81 is held inactive, and GATE, PROG, TIMER, and PG are held low for less than 1 ms while
internal voltages stabilize, then GATE, PROG, TIMER, and PG are released and the part begins sourcing current
to the GATE pin and the external FET begins to turn on while the voltage across it, V(SENSE-OUT), and current
through it, V(VCC-SENSE), are monitored. Current initially rises to the value which satisfies the power limit engine
(PLIM÷VVCC) since the output capacitor was discharged.
14
Copyright 2010, Texas Instruments Incorporated
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相關代理商/技術參數 |
參數描述 |
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| TPS2480PWR | 功能描述:熱插拔功率分布 Pos Vltg,Int 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 |
| TPS2481EVM-001 | 功能描述:電源管理IC開發工具 Eval Mod for TPS2481 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 |
| TPS2481PW | 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 |
| 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 |
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