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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） |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 375K |
| 代理商： | TPS2350EVM |
SLUU171A - September 2003
6
TPS2350 48-V Hot Swap/Supply Selector Evaluation Module
2
The TPS2350 48-V Hot Swap/Supply Selector EVM Kit
2.1
Module Description
The TPS2350 48-V hot swap/supply selector EVM kit is a PCB-based platform that enables designers to
rapidly learn about the TPS2350 operation, and evaluate its performance during hot swap events. The assembly
(TI part number HPA021001) features a TPS2350 device as it may be connected in the power interface section
of a hot swap-capable plug-in card. The assembly also provides additional controls and components to simplify
testing and for quick modifications of the circuit characteristics. Input power to the module is connected at three
banana jacks located on the left-hand side of the board. A toggle switch is provided to rapidly apply power to
and remove it from the circuit.
The hot swap circuit on the EVM board contains the TPS2350 HSPM device, a power MOSFET switch, sense
resistor and some configuration capacitors. Two through-hole patterns are provided on the load side for the
installation of large-value aluminum electrolytic capacitors. These capacitors simulate the input bulk
capacitance that may be found on the target module’s back-end supply plane. The EVM is supplied from the
factory with a 100-
μ
F capacitor installed in one of the locations. The second pattern, connected in parallel with
the first, can be used to increase or otherwise modify the amount of load capacitance. With the TPS2350, both
inrush slew rate limiting and a fault time-out period are externally programmable using capacitors. On the EVM
board, several options are provided for slew rate limit setting, for quick comparison of the effect of capacitor
value on this function. The capacitors can be quickly switched in and out of the circuit via the DIP switch SW1.
Fault timing programming is set up in a similar manner; some amount of capacitance is hard-wired into the
circuit, with the option of switching in additional capacitance.
N-channel FETs are also provided on-board to exercise or demonstrate the supply selection operation of the
TPS2350 when two supplies are connected to the board.
The board also contains the component patterns and connections to exercise the undervoltage (UVLO) and
overvoltage (OVLO) lockout functions. A slide switch is also tied into the UV input pin to provide an alternate
means of enabling and disabling the output voltage. The powergood output can be monitored directly at the
device pin, or through the on-board opto-coupler.
Test points are provided throughout the circuit for easy voltage monitoring via oscilloscope or voltmeter. The
test point connections are listed in Table
6.
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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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