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參數(shù)資料
| 型號： | LM25066APSQE |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數(shù)： | 4/48頁 |
| 文件大?。?/td> | 1658K |
| 代理商： | LM25066APSQE |
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Block Diagram
30146010
Functional Description
The inline protection functionality of the LM25066A is de-
signed to control the in-rush current to the load upon insertion
of a circuit card into a live backplane or other “hot” power
source, thereby limiting the voltage sag on the backplane’s
supply voltage and the dV/dt of the voltage applied to the load.
Effects on other circuits in the system are minimized, pre-
venting possible unintended resets. A controlled shutdown
when the circuit card is removed can also be implemented
using the LM25066A.
In addition to a programmable current limit, the LM25066A
monitors and limits the maximum power dissipation in the se-
ries pass device to maintain operation within the device Safe
Operating Area (SOA). Either current limiting or power limiting
for an extended period of time results in the shutdown of the
series pass device. In this event, the LM25066A can latch off
or repetitively retry based on the hardware setting of the
RETRY pin. Once started, the number of retries can be set to
none, 1, 2, 4, 8, 16, or infinite. The circuit breaker function
quickly switches off the series pass device upon detection of
a severe over-current condition. Programmable under-volt-
age lockout (UVLO) and over-voltage lockout (OVLO) circuits
shut down the LM25066A when the system input voltage is
outside the desired operating range.
The telemetry capability of the LM25066A provides intelligent
monitoring of the input voltage, output voltage, input current,
input power, temperature, and an auxiliary input. The
LM25066A also provides a peak capture of the input power
and programmable hardware averaging of the input voltage,
current, power, and output voltage. Warning thresholds which
trigger the SMBA pin may be programmed for input and output
voltage, current, power and temperature via the PMBus in-
terface. Additionally, the LM25066A is capable of detecting
damage to the external MOSFET, Q
1.
www.national.com
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LM25066A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM25066APSQE/NOPB | 功能描述:熱插拔功率分布 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 |
| LM25066APSQX | 制造商:TI 制造商全稱:Texas Instruments 功能描述:System Power Management and Protection IC with PMBusa?￠ |
| LM25066APSQX/NOPB | 功能描述:熱插拔功率分布 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 |
| LM25066EVK/NOPB | 功能描述:電源管理IC開發(fā)工具 LM25066 EVAL BOARD 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 |
| LM25066IAPSQ/NOPB | 制造商:Texas Instruments 功能描述:IC PWR MGMT/PROT PMBUS 24WQFN 制造商:Texas Instruments 功能描述:System PWR Mgmt & Protection IC |
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