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LTC1473CGN

产品分类: 电源管理芯片(PMIC)
厂牌: ANALOG DEVICES
产品描述: Power Path Switch 16-Pin SSOP N
供应商型号:
供应商:
标准整包数: 0
ANALOG DEVICES 电源管理芯片(PMIC) LTC1473CGN

LTC1473CGN概述

    Introduction to the LTC1473 Dual PowerPath™ Switch Driver
    The LTC1473 is a specialized dual PowerPath™ switch driver designed to manage power paths in systems utilizing multiple DC sources, such as dual-battery notebook computers and various portable electronic devices. Its key functions include seamless power routing between different sources, supporting up to 30V, and reducing power losses through the use of all N-channel switching. By integrating advanced features like adaptive high-voltage step-up regulation, inrush current limitation, and programmable timers, the LTC1473 ensures reliable and efficient power management.
    The device’s small footprint, 16-pin narrow SSOP, makes it ideal for space-constrained applications while its robustness and versatility enable it to serve multiple industries including portable instruments, handheld terminals, and medical & industrial control equipment.
    Technical Parameters
    Below are the key technical specifications and performance characteristics of the LTC1473:
    | Parameter | Value |

    | Supply Voltage Range | 4.75V to 30V |
    | Operating Temperature Range | Commercial: 0°C to 70°C
    Industrial: –40°C to 85°C |
    | Gate Drive Voltage (VGG) | Approximately 8.5V above V+ |
    | Current Limit Threshold (VSENSE+ - VSENSE-) | ±0.2V |
    | Timer Latch Threshold Voltage | 1.1V to 1.3V |
    | Turn-On Delay Time (tD1) | 22µs |
    | Turn-Off Delay Time (tD2) | 1µs |
    | Rise Time (tON) | 33µs |
    | Fall Time (tOFF) | 2µs |
    Key Performance Features:
    - Adaptive inrush current limiting via a low-value current sense resistor.
    - Programmable timer to limit MOSFET switch dissipation.
    - All-N-channel switching for lower power loss and cost optimization.
    - Supports input voltages up to 30V.
    Product Characteristics and Advantages
    Unique Features:
    1. Efficient Power Path Management: The LTC1473 handles multiple DC sources efficiently, ensuring optimal power delivery to the primary system regulator.
    2. Reduced Power Losses: Using N-channel MOSFETs minimizes power dissipation compared to P-channel alternatives.
    3. Capacitor Inrush Protection: Smooth transitions are achieved with adaptive current limiting schemes, safeguarding sensitive components.
    4. Compact Design: Its 16-pin narrow SSOP package facilitates easy integration into compact electronics.
    Market Competitiveness:
    The LTC1473 excels in portable electronic systems due to its advanced thermal management, low-voltage operation, and programmable safety mechanisms. Its ability to seamlessly integrate power from multiple sources gives it a significant edge over traditional discrete solutions.
    Application Cases and Use Suggestions
    Applications:
    - Notebook Computers: Handles dual-battery power management effectively.
    - Portable Instruments: Ensures reliable power transfer across varied input sources.
    - Medical Devices: Provides critical safety features for inrush current control.
    Use Suggestions:
    1. Ensure proper bypass capacitors (≥1µF) are installed on V+ and VGG pins for optimal stability.
    2. Experiment with timer capacitor values to match application-specific fault tolerances.
    3. Avoid loading the VGG pin externally to prevent performance degradation.
    Compatibility and Support
    The LTC1473 offers compatibility with a wide range of systems that employ back-to-back N-channel MOSFET configurations. Linear Technology Corporation provides comprehensive technical support, including design guides and reference schematics. Additionally, software tools facilitate quick prototyping and system integration.
    Common Issues and Solutions
    | Issue | Solution

LTC1473CGN参数

参数
工作电源电流 -
最大输出电压 -
最小输出电压 -
应用场景 -
最大工作供电电压 -
最小工作供电电压 -
4.98mm(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

LTC1473CGN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。

LTC1473CGN数据手册

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ANALOG DEVICES 电源管理芯片(PMIC) ANALOG DEVICES LTC1473CGN LTC1473CGN数据手册

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