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參數(shù)資料
| 型號： | MIC2580A |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Hot-Swap PCI Power Controller |
| 中文描述： | 熱插拔PCI電源控制器 |
| 文件頁數(shù)： | 20/21頁 |
| 文件大小： | 252K |
| 代理商： | MIC2580A |
MIC2580A
CompactPCI BD_SEL# Pin Tied to Ground
For applications that use system backplanes with the
BD_SEL# pin tied to ground, the MIC2580A /ON pin is edge
sensitive. Therefore, the /ON pin requires a delay circuit for
proper start-up when the board has already been inserted
into the backplane and the supplies are switched off, then
back on. The circuit, shown in the figure below, allows the
MIC2580A /ON pin to transition from high to low which is
necessary for start-up. The delay time may be increased or
decreased by changing the RC time constant in the circuit,
but the delay time must exceed the ramp time of all system
backplane supplies. The same circuit is functional for hot
swap insertion.
Micrel, Inc.
MIC2580A
20
February 2005
V
(3.3V or 5V)
3.3
μ
F
/FAULT
/RESET
MIC2580A
/ON
1.2k
10k
50k
2N3904
1N914
2k
2k
BD_SEL#
On PCB
Figure 7. /ON Pin Assertion Delay Circuit
PCB Layout Considerations
To achieve accurate current sensing Kelvin connections are
recommended between the supply pin and the respective
sense resistor as shown in Figure 8. PCB trace length should
be kept at a minimum. 0.02 inches per ampere is a minimum
width for 1 oz. copper to prevent damage to traces carrying
high current. Keep these high-current traces as short as
possible.
short-length, high-current
(wide) copper traces
to
VIN
pin
from
supply
to
pin
SENSE
to
load
sense resistor
Kelvin
connections
Figure 8. Layout Recommendation
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|---|---|
| MIC2580A-1.0BTS | Hot-Swap PCI Power Controller |
| MIC2580A-1.6BTS | Hot-Swap PCI Power Controller |
| MIC2580 | Hot-Swap PCI Power Controller(熱交換PCI功率控制器) |
| MIC2588 | Single-Channel, Negative High-Voltage Hot Swap Power Controllers |
| MIC2588-1BM | Single-Channel, Negative High-Voltage Hot Swap Power Controllers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2580A-1.0BTS | 功能描述:IC CTRLR HOTSWAP PCI PWR 24TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內(nèi)部開關:是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2580A-1.0BTS TR | 功能描述:IC CTRLR PCI HOT SWAP 24-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內(nèi)部開關:是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2580A-1.0YTS | 功能描述:熱插拔功率分布 PCI Hot Swap Controller - Lead Free 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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MIC2580A-1.0YTS TR | 功能描述:熱插拔功率分布 PCI Hot Swap Controller - Lead Free 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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MIC2580A-1.6BTS | 功能描述:IC CTRLR PCI HOT SWAP 24-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內(nèi)部開關:是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
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