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參數(shù)資料
| 型號： | TPS2491EVM-002 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | +48V Hot Swap Power Manager Evaluation Kit(在+48V熱插拔電源管理中應(yīng)用的評估) |
| 中文描述： | 48V熱插拔電源管理評估套件（在48V的熱插拔電源管理中應(yīng)用的評估） |
| 文件頁數(shù)： | 23/24頁 |
| 文件大?。?/td> | 170K |
| 代理商： | TPS2491EVM-002 |
TIMER Capacitor
4-3
Using the EVM Kit to Evaluate the TPS2490/91 HSPM IC
4.3
TIMER Capacitor
On the EVM main board, a 0.1
μ
F ceramic capacitor (C3) is placed on the
TIMER pin of the device. Besides, a spare capacitor footprint (C4) is provided
to add additional capacitance on TIMER when needed. For example, if
capacitors are placed on C8 and/or C9, the 0.1
μ
F TIMER capacitor may not
be large enough, and it would need to add additional capacitance on TIMER
through C4.
4.4
PROG Capacitor
A spare ceramic-capacitor footprint (C2) is provided on the EVM main board
for adding capacitance on the PROG pin of the device. When a small capacitor
is placed on C2, the initial turnon inrush current slew rate is reduced, but the
overall turnon time is longer.
4.5
GATE Capacitor
A spare ceramic capacitor footprint (C5) is provided to add capacitance on the
GATE pin of the device. Although the device is designed for power-limiting
hotswap control, the TPS2490 or TPS2491 can be used as a dV/dt hot-swap
controller by removing resistor R4 and adding a gate capacitor on C5.
Increasing the value of C5 increases the output voltage ramp-up time. The
recommended capacitance range of C5 is 5 nF to 1
μ
F. When using power-
limiting control as the EVM is designed for, no capacitor should be placed on
C5. The recommended voltage rating for the GATE capacitor is 100 V.
4.6
Evaluation Without the Backplane Board
The EVM main board alone can be used to evaluate all the functions of the
TPS2490 or TPS2491 device except the performance in a live hot-swap event.
Switch S1 on main board serves almost the same functionality of the switch
SW1 on the backplane board. The difference is that the SW1 switches the EN
signal of the device between the input voltage VIN and the ground, but the
switch S1 only switches the EN signal between 0.033 VIN and ground. When
using the EVM main board only, configure as listed below:
Connect input power supply between jacks J1 and J2.
Add a 100-V, 100
μ
F (or larger) input capacitor between J1 and J2.
Use switch S1 to turn on (placed in AUTO position) or turn off (placed in
MANU position) the device.
Input supply voltage must be at least 42 V as defined in Table 24.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2492EVM-001 | 功能描述:電源管理IC開發(fā)工具 TPS2492 Hot Swap Controller Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| TPS2492EVM-003 | 功能描述:電源管理IC開發(fā)工具 TPS2492 Hot Swap Controller Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| TPS2492PW | 功能描述:熱插拔功率分布 Pos Hi-Vltg Pwr-Ltd Hotswap Controller 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 |
| TPS2492PW | 制造商:Texas Instruments 功能描述:HOT SWAP CONTROLLER IC 80V TSSOP-14 |
| TPS2492PWR | 功能描述:熱插拔功率分布 Pos Hi-Vltg Pwr-Ltd Hotswap Controller 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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