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LT4250LCS8

产品分类: 浪涌抑制器
厂牌: ANALOG DEVICES
产品描述: Hot Swap Controller 1-CH -20V N-Channel Negative High Voltage 8-Pin SOIC N
供应商型号:
供应商:
标准整包数: 0
ANALOG DEVICES 浪涌抑制器 LT4250LCS8

LT4250LCS8概述

    Product Introduction: LT4250L/LT4250H Negative 48V Hot Swap Controllers
    The LT4250L/LT4250H is a series of advanced 8-pin controllers designed to handle negative 48V hot swapping applications. These devices allow safe insertion and removal of printed circuit boards (PCBs) from a live backplane without causing disruptions to the system. Their primary function is to regulate power flow by managing inrush currents and providing comprehensive protection against voltage spikes, current overloads, and other potential failures.
    These chips are ideal for use in central office switching systems, negative power supply control, and distributed power systems such as those operating with -48V supplies. Key applications include telecom infrastructure, data centers, and industrial automation environments where reliability and safety are critical.
    Technical Parameters
    | Parameter | Typical Value | Units |
    |
    | Supply Voltage Range | -18V to -80V | Volts |
    | Supply Current (Idle Mode) | 1.6–5.0 | mA |
    | Undervoltage Lockout (UVLO) | 38.5 | Volts |
    | Overvoltage Protection Range | 71 | Volts |
    | Current Limit Trip Voltage | 40–60 | mV |
    | Gate Drive Pull-Up Current | -30 to -60 | µA |
    | Gate Drive Pull-Down Current | 24–70 | mA |
    | Sense Pin Current | ≤ -20 | µA |
    | Output Power Good Delay | 1–1.5 µs
    Features:
    - Temperature Range: -40°C to 85°C operating temperature.
    - Package Types: Available in 8-pin PDIP and SO packages.
    Product Features and Advantages
    The LT4250L/LT4250H stands out due to its advanced design features:
    1. Safe Insertion/Removal: It enables seamless hot plugging of PCBs into live backplanes by limiting inrush currents and protecting against voltage transients.
    2. Programmability: Both inrush and short-circuit current limits are programmable, making it highly flexible for different system designs.
    3. Protection Mechanisms: Offers comprehensive protection through undervoltage lockout (UVLO), overvoltage detection, and an electronic circuit breaker.
    4. Pin Compatibility: Fully compatible with legacy products like the LT1640L/LT1640H, ensuring backward compatibility.
    5. Efficiency: Its low quiescent current consumption ensures minimal power loss during idle states.
    These features make the LT4250L/LT4250H a robust choice for demanding applications requiring high reliability and performance under harsh conditions.
    Application Case Studies and Usage Recommendations
    Use Case 1: Central Office Switching
    In central office telecommunications setups, maintaining uninterrupted service is paramount. The LT4250L/LT4250H can be employed to manage the insertion/removal of network interface cards (NICs) without disrupting ongoing operations. For optimal performance:
    - Ensure proper selection of external components (e.g., sense resistors, capacitors) tailored to specific operating conditions.
    - Implement precise timing adjustments for smoother transitions.
    Use Case 2: Data Center Power Management
    Data centers require continuous power delivery to all servers. Using the LT4250L/LT4250H ensures reliable power distribution even during maintenance cycles involving server swaps:
    - Adjust the current limit thresholds dynamically based on expected loads to prevent overload scenarios.
    - Regularly check UVLO settings to avoid unnecessary shutdowns due to minor voltage fluctuations.
    Recommendation: Always consult the application notes provided by Linear Technology to fine-tune parameters for your specific setup.
    Compatibility and Support
    The LT4250L/LT4250H demonstrates excellent interoperabil

LT4250LCS8参数

参数
额定电流 -
额定电压 -
冷电阻 -
最大稳态电流 -
不同电流时R值 -
5mm(Max)
3.99mm(Max)
1.5mm(Max)
通用封装 SOP
安装方式 贴片安装
应用等级 商用级

LT4250LCS8厂商介绍

Analog Devices(简称ADI)是一家全球领先的半导体公司,专注于模拟、混合信号和数字信号处理(DSP)集成电路(IC)的设计、制造和营销。公司成立于1965年,总部位于美国马萨诸塞州的诺伍德。

ADI的主营产品主要分为以下几类:
1. 数据转换器:包括模数转换器(ADC)和数模转换器(DAC),广泛应用于通信、工业、医疗等领域。
2. 放大器和比较器:提供各种高性能放大器和比较器产品,用于信号放大、滤波和比较等。
3. 射频(RF)和微波产品:包括射频收发器、混频器、放大器等,应用于无线通信、**等领域。
4. 电源管理:提供电源转换、电源管理等解决方案,满足各种电源需求。
5. 接口和通信:包括以太网、串行通信等接口产品,用于数据传输和通信。
6. 处理器和DSP:提供高性能处理器和数字信号处理器,用于复杂信号处理和控制。

ADI的优势在于其在模拟和混合信号领域的深厚技术积累,以及对客户需求的深刻理解。公司不断推出创新产品,满足客户在各种应用场景下的需求,如5G通信、自动驾驶、工业自动化等。此外,ADI还提供全面的技术支持和定制化服务,帮助客户实现产品快速上市。

LT4250LCS8数据手册

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ANALOG DEVICES 浪涌抑制器 ANALOG DEVICES LT4250LCS8 LT4250LCS8数据手册

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