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TI TPS3897ADRYR
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- TI(Texas Instruments) TPS3897ADRYR
- Type
- TI
- Unit
- Electronic Component
- Minimum package
- 5000
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TI(Texas Instruments)
- Electronic Component
- TPS3897ADRYR
- Electronic Component
- 1
- Package
- SON-6(1x1.5)
- Electronic Component
- Supervisorand positions IC
- Electronic Component
- 0.036g
- Electronic Component
- 1
- Electronic Component
- BM0227583009
- Reset
- 40us
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 1.7V~6.5V
- ICType
- Voltage Detector
- Output Type
- Electronic Component
- Voltage
- 500mV
- Static Current(Iq)
- 6uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TPS3897ADRYR 产品概述
一、器件简介
TPS3897ADRYR 是德州仪器（TI）推出的一款低功耗电压监控与复位芯片，属于简单复位/上电复位（POR）器件。芯片以紧凑的 SON-6（1.0 × 1.5 mm）封装提供，适合空间受限、需可靠上电复位的便携及工业类系统。工作电压范围宽（1.7 V 至 6.5 V），工作温度覆盖 -40 ℃ 至 +125 ℃（Tj），静态电流仅 6 μA，非常适合电池供电系统。
二、主要特性
- 输出类型：开漏（需外部上拉电阻）
- 复位有效电平：高电平有效（配合上拉使用以产生逻辑高电平复位）
- 复位超时（复位脉宽）：典型 40 μs（短超时，用于快速系统重置）
- 受监控通道：单通道电压检测器（监控 1 个电压轨）
- 看门狗定时器：无
- 手动复位：无独立按键输入
- 静态电流（Iq）：6 μA（低功耗）
- 阈值电压：500 mV（器件内部参考/门限相关，参照数据手册以确认具体标称与容差）
- 封装：SON-6（1 × 1.5 mm）
- 品牌：TI（德州仪器）
三、工作原理与使用建议
TPS3897ADRYR 在被监控电压低于设定门限时输出复位信号。器件提供开漏输出，因此需要在 RESET 输出端接入适当的上拉电阻（上拉电压可接至监控电压或系统逻辑电源，依据系统需求选择），以生成所需的高电平复位信号。由于复位为高电平有效，输出在断言复位时被驱成高电平（由外部上拉维持），释放复位时开漏释放，线被拉低或由外部逻辑判定为无复位状态——在实际设计中请参考数据手册中关于输出极性与时序的具体说明以避免误用。
复位超时短（40 μs）适合需要快速释放复位或短暂上电检测的场景；若系统需更长的复位保持时间，需在系统逻辑中通过延时电路或上层控制器配合实现。
四、典型应用场景
- MCU/CPU 上电复位（便携设备、消费电子）
- 电池供电与能源管理系统（低静态电流优势明显）
- 工业控制与仪表（宽电压与高温规范）
- 电源序列与故障复位检测
五、布局与选型注意事项
- RESET 引脚旁应布置上拉电阻（典型 10 kΩ，可根据上拉电压与响应速度调整）。
- 器件靠近被监控电源轨布局，减少引线阻抗与噪声耦合。
- 加强电源去耦，特别是在电源启动或切换瞬态时，能提高检测可靠性。
- 工作温度及封装热特性应结合应用环境评估，确保器件在 -40 ℃ 至 +125 ℃（Tj）范围内稳定工作。
- 详细参数（门限误差、迟滞、复位脉宽最小/最大值等）请以 TI 官方数据手册为准，选型时注意容差等级与版本号。
总结：TPS3897ADRYR 提供了低功耗、小封装、宽电压和工业级温度范围的单通道电压监控解决方案，适合对尺寸、电流消耗和上电复位可靠性有严格要求的设计。购买与设计实现时，请参考 TI 数据手册与推荐的参考电路以获得最佳性能。
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