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参数资料
| 型号： | LM25066PSQX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, QCC24 |
| 封装： | LLP-24 |
| 文件页数： | 4/48页 |
| 文件大小： | 1456K |
| 代理商： | LM25066PSQX |
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Block Diagram
30115810
Functional Description
The inline protection functionality of the LM25066 is designed
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. Ef-
fects on other circuits in the system are minimized, preventing
possible unintended resets. A controlled shutdown when the
circuit card is removed can also be implemented using the
LM25066.
In addition to a programmable current limit, the LM25066
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 LM25066 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 LM25066 when the system input voltage is
outside the desired operating range.
The telemetry capability of the LM25066 provides intelligent
monitoring of the input voltage, output voltage, input current,
input power, temperature, and an auxiliary input. The
LM25066 also provides a peak capture of the input power and
programmable hardware averaging of the input voltage, cur-
rent, 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 LM25066 is capable of detecting
damage to the external MOSFET, Q
1.
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LM25066
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM25066PSQX/NOPB | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| LM25069 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Positive Low Voltage Power Limiting Hot Swap Controller |
| LM25069MM-2EVAL | 功能描述:BOARD EVALUATION LM25069 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| LM25069MM-2EVAL/NOPB | 功能描述:电源管理IC开发工具 LM25069MM-2 Eval Brd RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM25069PMM-1 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Positive Low Voltage Power Limiting Hot Swap Controller |
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