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ADI/LINEAR MAX1978ETM+T MAX1978ETM
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
14
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR MAX1978ETM+T
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- MAX1978ETM+T
- Electronic Component
- 1
- Package
- TQFN-48-EP(7x7)
- Electronic Component
- Specialized Power Management(PMIC)
- Electronic Component
- 0.376g
- Electronic Component
- 1
- Electronic Component
- BM0264340407
- Electronic Component
- Electronic Component
- Electronic Component
- 2500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MAX1978ETM+T 产品概述
一、产品定位与核心功能
MAX1978ETM+T 是一款面向热电冷却器（Peltier/TEC）驱动与温度管理的电源管理IC（PMIC），由 ADI（包含 Linear 技术） 系列提供。器件专为实现对热电模块的精确电流控制与保护而设计，支持可调限流与过流保护功能，以提高系统安全性与热稳定性。
二、关键特性
- 可调限流：通过外部电阻或控制引脚调节输出限流值，适配不同规格的 TEC 单元，便于实现温控精细化。
- 过流保护：实时检测异常电流并快速响应，防止 TEC 或下游器件受损，并可配置为自动恢复或锁定模式。
- PMIC 功能：集成用于 TEC 的电源管理与控制逻辑，简化外部电路设计，提升稳定性与响应速度。
- 故障与状态指示：支持故障输出/标志信号，便于与 MCU 或监控电路联动，实现系统级保护与报警。
三、封装与热管理
封装为 TQFN-48-EP（7 x 7 mm），带裸露热焊盘（EP），便于高效散热。建议在 PCB 设计时对热焊盘使用多层铜通（via）和大面积散热铜箔，以降低结壳温升，确保长期可靠工作。
四、典型应用场景
- 光电和激光器件温控（激光二极管、光纤通讯模块）
- 精密仪器温度稳定（传感器、频率基准、医用设备）
- 小型制冷/保温模块（便携冷却箱、样品台）
- 工业与科研环境下的热管理系统
五、设计与使用建议
- 布局：将电源回路与控制信号分区，限流/过流检测元件靠近芯片放置，减少寄生感抗。
- 滤波与旁路：在输入和输出端配置合适的去耦电容，抑制开关噪声和瞬态。
- 热设计：在 TQFN 热焊盘下使用多盲/通孔连接至底层散热区，并按实际功耗选择散热材料与外壳方案。
- 保护策略：配合软启动、短路检测与温度监控，可显著延长 TEC 与系统寿命。
六、注意事项与可靠性
在高电流工况下，需评估 PCB 的电流承载能力与连接件温升；若系统对温控精度要求高，应配合精密电阻与快速采样的反馈回路。器件应在额定温度与电气参数范围内使用，并参考厂商参考设计与布局指南以保证最佳可靠性。
该产品适合需要高度可控、可靠保护与紧凑封装的热电冷却解决方案，是追求性能与安全并重应用的优选。
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