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TPS3801

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具有手动复位功能的 200ms 延迟、小型电源电压监控器

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TPS3801

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产品详情

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.14, 1.71, 2.25, 2.64, 2.93, 4, 4.55 Features Manual reset capable Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.14, 1.71, 2.25, 2.64, 2.93, 4, 4.55 Features Manual reset capable Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 200 Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-SC70 (DCK) 5 4.2 mm² (2 mm × 2.1 mm)
  • Small, 5-Pin SC-70 (SOT-323) Package
  • Supply Current of 9 µA
  • Power-On Reset Generator With Fixed Delay Time
    • TPS3800 = 100 ms
    • TPS3801 = 200 ms
    • TPS3802 = 400 ms
  • Precision Supply Voltage Monitor 1.8 V, 2.5 V,
    2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
  • Manual Reset Input (Except TPS3801-01)
  • Temperature Range:  –40°C to +85°C
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Wireless Communication Systems
    • Portable/Battery-Powered Equipment
    • Programmable Controls
    • Intelligent Instruments
    • Industrial Equipment
    • Notebook/Desktop Computers
    • Automotive Systems

All other trademarks are the property of their respective owners.
  • Small, 5-Pin SC-70 (SOT-323) Package
  • Supply Current of 9 µA
  • Power-On Reset Generator With Fixed Delay Time
    • TPS3800 = 100 ms
    • TPS3801 = 200 ms
    • TPS3802 = 400 ms
  • Precision Supply Voltage Monitor 1.8 V, 2.5 V,
    2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
  • Manual Reset Input (Except TPS3801-01)
  • Temperature Range:  –40°C to +85°C
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Wireless Communication Systems
    • Portable/Battery-Powered Equipment
    • Programmable Controls
    • Intelligent Instruments
    • Industrial Equipment
    • Notebook/Desktop Computers
    • Automotive Systems

All other trademarks are the property of their respective owners.

The TPS380x family of supervisory circuits monitor supply voltages to provide circuit initialization and timing supervision, primarily for DSPs and other processor-based systems.

These devices assert a push-pull RESET signal when the SENSE (adjustable version) or VDD (fixed version) drops below a preset threshold. The RESET output remains asserted for the factory programmed delay time after the SENSE or VDD return above its threshold.

The TPS380x devices, except the TPS3801-01, incorporate a manual reset input (MR). A low level at MR causes RESET to become active.

The TPS380x uses a precision reference to achieve an overall threshold accuracy of 2%—2.5%. These devices are available in a 5-pin SC-70 package, which is only about half the size of a 5-pin SOT-23 package.

The TPS380x devices are fully specified over a temperature range of –40°C to +85°C.

The TPS380x family of supervisory circuits monitor supply voltages to provide circuit initialization and timing supervision, primarily for DSPs and other processor-based systems.

These devices assert a push-pull RESET signal when the SENSE (adjustable version) or VDD (fixed version) drops below a preset threshold. The RESET output remains asserted for the factory programmed delay time after the SENSE or VDD return above its threshold.

The TPS380x devices, except the TPS3801-01, incorporate a manual reset input (MR). A low level at MR causes RESET to become active.

The TPS380x uses a precision reference to achieve an overall threshold accuracy of 2%—2.5%. These devices are available in a 5-pin SC-70 package, which is only about half the size of a 5-pin SOT-23 package.

The TPS380x devices are fully specified over a temperature range of –40°C to +85°C.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 超小型电源电压监控器 数据表 (Rev. E) 2010-10-29
电子书 电压监测仪和电压检测器：提示、技巧和基础知识 英语版 2019-8-28
测试报告 PMP15014 Test Results 2016-5-12
测试报告 PMP4742 Test Results 2010-11-12

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

参考设计

PMP15014 — 汽车信息娱乐电源系统参考设计

PME15014 旨在用作由非电池电源供电且用于信息娱乐系统的汽车前端电源。此系统通过满足高电压输入需求的单级电源系统创建，并可针对不同的负载需求为多个输出轨提供低电压。此系统还提供瞬态和反极性保护。宽输入电压降压级在 2.1Mhz 频率下工作以避免 AM 频带，并具有支持 CISPER 25 的差分 EMI 滤波器，可实现出色的 EMI 性能。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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