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LTC2951CDDB-2#TRPBF

产品分类: 电源管理芯片(PMIC)
厂牌: ANALOG DEVICES
产品描述: 6μA 2.7V 26.4V 按钮,开/关控制器 DFN 贴片安装,黏合安装 3mm(长度)*2mm(宽度)
供应商型号: Q-LTC2951CDDB-2#TRPBF
供应商: 期货订购
标准整包数: 2500
ANALOG DEVICES 电源管理芯片(PMIC) LTC2951CDDB-2#TRPBF

LTC2951CDDB-2#TRPBF概述

    # LTC2951-1/LTC2951-2 Pushbutton On/Off Controller: A Comprehensive Analysis
    Product Introduction
    The LTC2951-1 and LTC2951-2 are advanced pushbutton on/off controllers from Linear Technology, now part of Analog Devices. These devices are designed for ultra-low-power applications requiring precise control of system power states. The primary function of these chips is to manage on/off cycles via a momentary switch while ensuring reliable operation across a wide input voltage range (2.7V to 26.4V). Key features include adjustable debounce times, a robust pushbutton interface, and an open-drain enable output compatible with various DC/DC converters or circuit breakers.
    The LTC2951 series finds widespread use in portable instruments, desktop computers, blade servers, and PDAs. Its low quiescent current (6µA typical) makes it ideal for battery-operated systems where energy efficiency is critical. Two versions are available—LTC2951-1 enables DC/DC converters, while LTC2951-2 facilitates circuit breaker control.
    Technical Specifications
    Below are the key technical parameters extracted from the datasheet:
    Electrical Characteristics
    | Symbol | Parameter | Conditions | Min | Typ | Max | Units |
    ||
    | VIN | Supply Voltage Range | Steady-State Operation | 2.7 | 26.4| V |
    | IIN | Supply Current | System Power-On | 6 | 12 | µA |
    | VPB | Pushbutton Voltage Range | Single-Ended | -1 | N/A | 26.4 | V |
    | tDB,ON | Turn-On Debounce Time | PB Falling → Enable Asserted | 100 | 128 | 163 | ms |
    | tKILL | Minimum Pulse Width | KILL Falling → Enable Released| 30 | N/A | N/A | µs |
    Operating Environment
    - Input Voltage: 2.7V to 26.4V
    - Quiescent Current: 6µA (typical)
    - Temperature Range:
    - Industrial (-40°C to 85°C)
    - Commercial (0°C to 70°C)
    These specifications ensure compatibility with diverse electronic designs, particularly in environments with fluctuating voltages or limited power resources.
    Product Features and Advantages
    The LTC2951 offers several distinct advantages:
    1. Wide Input Voltage Range: Supports both single-cell and multi-cell battery configurations.
    2. Adjustable Timings: Both turn-on and turn-off debounce times are programmable, enhancing reliability in noisy environments.
    3. Low Quiescent Current: Ideal for battery-powered devices minimizing standby power consumption.
    4. Robust Pushbutton Interface: High voltage tolerance (up to 26.4V) without additional current draw.
    5. Versatile Outputs: EN outputs suitable for controlling either DC/DC converters or circuit breakers based on version selection.
    Its ability to integrate seamlessly with existing systems ensures high market competitiveness.
    Application Cases and Recommendations
    Application Examples
    1. Portable Instruments: Used in handheld measurement tools to toggle power states precisely.
    2. Desktop Computers: Ensures orderly shutdown by leveraging the KILL input to monitor CPU activity.
    3. Blade Servers: Provides fail-safe mechanisms during unexpected shutdowns using the KILL timer.
    Usage Tips
    - For best performance, align the OFFT external capacitor value with the expected off-time requirements.
    - Always connect unused KILL pins to low-voltage supplies to prevent floating states.
    Compatibility and Support
    The LTC2951 is compatible with standard DC/DC converters and most microprocessors due to its open-drain outputs. Additionally, Linear Technology offers extensive support including datasheets, application notes, and customer service.
    Common Issues and Solutions
    | Problem | Solution |

    | Incorrect Turn-On Debounce Time | Verify PB connection duration against tDB,ON spe

LTC2951CDDB-2#TRPBF参数

参数
最小工作供电电压 2.7V
工作电源电流 6μA
最大输出电压 -
最小输出电压 -
应用场景 按钮,开/关控制器
最大工作供电电压 26.4V
长*宽*高 3mm(长度)*2mm(宽度)
通用封装 DFN
安装方式 贴片安装,黏合安装
应用等级 商用级
零件状态 在售
包装方式 卷带包装

LTC2951CDDB-2#TRPBF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。

LTC2951CDDB-2#TRPBF数据手册

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价格梯度 中国香港交货 内地交货(含增值税)
25000+ ¥ 31.703
50000+ ¥ 30.7972
75000+ ¥ 29.8914
库存: 25000
起订量: 25000 增量: 0
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最小起订量为:25000
合计: ¥ 792575
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