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參數(shù)資料
| 型號(hào)： | TPS2350EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | TPS2350 -48V Hot Swap/Supply Selector Evaluation Module(’-48V熱交換/電源選擇器TPS2350的評(píng)估板) |
| 中文描述： | TPS2350 - 48V熱插拔/供應(yīng)選擇評(píng)估模塊（\u0026#39;- 48V的熱交換/電源選擇器TPS2350的評(píng)估板） |
| 文件頁(yè)數(shù)： | 5/20頁(yè) |
| 文件大?。?/td> | 375K |
| 代理商： | TPS2350EVM |
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SLUU171A - September 2003
5
TPS2350 48-V Hot Swap/Supply Selector Evaluation Module
1
Introduction
The TPS2350 is a negative voltage hot swap controller intended for use in systems needing to hot swap telecom
distribution-level voltages. It integrates inrush current control, peak current limiting, electronic circuit breaker,
and overvoltage and undervoltage protection. In addition, it monitors and selects from two power supplies the
larger magnitude supply, reducing OR-ing losses in redundant supply systems. The EVM is a PCB-based tool
featuring the TPS2350 in a hot swap circuit, and can be used to evaluate device operation in simulated live
insertion events.
1.1
Features
The following list highlights some of the features of the TPS2350 device.
Wide input supply range of 12 V to 80 V
Transient rating to 100 V
Programmable current limit
Programmable linear inrush slew rate
Redundant supply selector function
Programmable UV/OV thresholds/hysteresis
Fault timer to eliminate nuisance trips
Open-drain power good (PG) output
Open-drain fault output (FLT)
14-pin TSSOP package
1.2
Description
The TPS2350 integrated circuit is a hot swap power manager optimized for use in nominal 48-V systems. It
operates over a supply voltage range of 12 V to 80 V, and is rated to withstand spikes to 100 V. In conjunction
with an external N-channel FET and sense resistor, it can be used to enable live insertion of plug-in cards and
modules into powered systems. It provides load current slew rate control and peak magnitude limiting.
Undervoltage and overvoltage shutdown thresholds are easily programmed via a three-resistor divider network.
A power good (PG) output enables downstream converters. The TPS2350 also provides the basic hot swap
functions of electrical isolation of faulty cards, filtered protection against nuisance overcurrent trips, and
single-line fault reporting.
The TPS2350 also provides a unique feature for redundant-supply systems. The supply selection function can
be used to reduce power losses of diode-OR systems. A selection comparator monitors the two input supplies,
and selects the supply with the larger magnitude. Internal driver circuits provide the gate drive needed to control
two external N-channel FETs, providing a low-loss switch closure for the active supply, while disconnecting the
lower voltage supply.
For input capacitor charging and load current faults, the TPS2350 provides an internal fault timer to filter out
spurious current glitch events. In the event of a persistent fault which exceeds the programmable timer setting,
the TPS2350 turns off the hot swap FET, disconnecting the load. A retry mode periodically tests for continued
existence of the fault at a low duty cycle, thus protecting the pass FET from excessive dissipation.
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| TPS2812(中文) | Dual High-Speed MOSFET Drivers, Inverting(雙路高速同相MOSFET驅(qū)動(dòng)器) |
| TPS2813(中文) | Dual High-Speed MOSFET Drivers, 1 Noninverting,1 Inverting(一路同相，一路反相高速M(fèi)OSFET驅(qū)動(dòng)器) |
| TPS2814(中文) | Dual High-Speed MOSFET Drivers, 1 Noninverting,1 Inverting(2輸入AND高速M(fèi)OSFET驅(qū)動(dòng)器,一路同相,一路反相) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2350PW | 功能描述:熱插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2350PW | 制造商:Texas Instruments 功能描述:HOT SWAP CONTROLLER ((NW)) 制造商:Texas Instruments 功能描述:IC, HOT SWAP POWER MANAGER, 14-TSSOP |
| TPS2350PWG4 | 功能描述:熱插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2350PWR | 功能描述:熱插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2350PWRG4 | 功能描述:熱插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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