Model & package intelligence
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ADI/LINEAR LTC4417IUF#TRPBF LTC4417IUF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR LTC4417IUF#TRPBF
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- LTC4417IUF#TRPBF
- Electronic Component
- 1
- Package
- QFN-24(4x4)
- Electronic Component
- Ideal Diode / ORing Controller
- Electronic Component
- 0.067g
- Electronic Component
- 1
- Channel Count
- 3
- Features
- Voltage; Current
- Electronic Component
- BM0264756722
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.5V~36V
- Electronic Component
- Electronic Component
- Electronic Component
- 2500
- Logic
- Level
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LTC4417IUF#TRPBF 产品概述
一、产品简介
LTC4417IUF#TRPBF（ADI / Linear）是一款三通道功率电子开关控制器，封装为 QFN-24-EP (4×4)。器件支持 2.5V~36V 工作电压，工作温度范围 -40℃ 至 +85℃，输入控制逻辑为高电平有效。集成了过压保护、欠压锁定、反向电压保护、反向电流阻断和软启动等功能，适用于多源电源管理与高可靠性功率路径控制场合。
二、主要功能特性
- 三路独立控制，支持多路电源并联/切换。
- 工作电压宽范围：2.5V ~ 36V，覆盖大多数机载与车载/工业电源域。
- 输入控制高电平有效，便于与 MCU/逻辑电平直接接口。
- 过压保护与欠压锁定，提高系统安全性与对上游电源异常的响应能力。
- 反向电压与反向电流阻断，防止电源倒灌与负载对其他电源通道的影响。
- 软启动功能，用于限制充电突入电流和降低启动时的干扰冲击。
- QFN-24-EP 封装利于良好散热与紧凑 PCB 布局。
三、工作原理与优势
LTC4417 作为电源路径控制器，通过驱动外部功率 MOSFET 或内部开关实现低损耗的理想二极管或电源路由功能。相对于传统肖特基二极管，采用 MOSFET+控制器的方案可以显著降低导通损耗与发热，提升系统效率；其反向保护功能避免了电池或其他电源向系统倒灌带来的风险；软启动机制则平滑启动电流，保护电源与器件免受浪涌影响。
四、典型应用场景
- 电源 ORing 与冗余电源切换（服务器、电信设备）。
- 电池与外部电源自动切换（便携设备、UPS）。
- 汽车与工业 12V/24V 电源管理（因为电压范围覆盖至 36V）。
- 热插拔与热备份系统的过压/欠压保护与反向隔离。
五、设计与布局注意事项
- 选择合适的外部 MOSFET：关注 VgsMax、Rds(on) 与最大连续电流；确保 MOSFET Vgs 在工作电压下可靠驱动。
- 功率与热管理：QFN-EP 散热依赖于焊盘和多层地平面，需保证良好焊接与过孔散热通道。
- 去耦与滤波：在器件电源引脚附近布置低 ESR 陶瓷电容，抑制瞬态与保持控制稳定。
- 软启动元件：若采用外部电容设定软启动时间，应选择合适容值并注意耐压要求。
- 控制接口：输入为高电平有效，确保逻辑电平与器件阈值兼容，必要时加入电平移位或上拉/下拉电阻。
六、可靠性与环境适应
器件工作温度覆盖工业级 -40℃~+85℃，适配多数工业与车载环境。QFN-24-EP 封装为紧凑型且便于自动贴装，良好的封装热性能与机械强度支持长期可靠运行。建议在关键应用中进行整机级热分析与电磁兼容性验证，以保证在极端工况下的稳定性与寿命。
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