TPS3803

正在供货

低功耗电压检测器

米6体育平台手机版_好二三四详情

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.226, 1.4 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.226, 1.4 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Single Voltage Detector (TPS3803): Adjustable/1.5 V
  • Dual Voltage Detector (TPS3805): Adjustable/3.3 V
  • High ±1.5% Threshold Voltage Accuracy
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Push/Pull Reset Output (TPS3805) Open-Drain Reset Output (TPS3803)
  • Temperature Range: -40°C to +85°C
  • 5-Pin SC-70 Package
  • 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 trademarks are the property of their respective owners.

  • Single Voltage Detector (TPS3803): Adjustable/1.5 V
  • Dual Voltage Detector (TPS3805): Adjustable/3.3 V
  • High ±1.5% Threshold Voltage Accuracy
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Push/Pull Reset Output (TPS3805) Open-Drain Reset Output (TPS3803)
  • Temperature Range: -40°C to +85°C
  • 5-Pin SC-70 Package
  • 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 trademarks are the property of their respective owners.

The TPS3803 and TPS3805 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TPS3803G15 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805 devices provide a second adjustable SENSE input. RESET is asserted in case any of the two voltages drops below VIT.

During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT , RESET is deasserted again. The product spectrum is designed for 1.5 V, 3.3 V, and adjustable supply voltages. The devices are available in a 5-pin SC-70 package.

The TPS3803 and TPS3805 devices are characterized for operation over a temperature range of -40°C to +85°C.

The TPS3803 and TPS3805 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TPS3803G15 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01 has an adjustable SENSE input that can be configured by two external resistors. In addition to the fixed sense threshold monitored at VDD, the TPS3805 devices provide a second adjustable SENSE input. RESET is asserted in case any of the two voltages drops below VIT.

During power on, RESET is asserted when supply voltage VDD becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD (and/or SENSE) and keeps RESET active as long as VDD or SENSE remains below the threshold voltage VIT. As soon as VDD (SENSE) rises above the threshold voltage VIT , RESET is deasserted again. The product spectrum is designed for 1.5 V, 3.3 V, and adjustable supply voltages. The devices are available in a 5-pin SC-70 package.

The TPS3803 and TPS3805 devices are characterized for operation over a temperature range of -40°C to +85°C.

下载 观看带字幕的视频 视频

您可能感兴趣的相似米6体育平台手机版_好二三四

功能与比较器件相同,但引脚排列有所不同
TLV803E 正在供货 低电平有效漏极开路输出型低功耗电压监控器(复位 IC) Lower quiescent current (250nA) in more fixed threshold voltage options
TLV841 正在供货 具有可调节释放延迟功能且采用 Wafer Chip-Scale Package 封装的超低压纳瓦级功率监控器 Enhanced initial accuracy (0.5%) and lower quiescent current (120nA) in more fixed threshold voltage options

技术文档

star =有关此米6体育平台手机版_好二三四的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 5
类型 标题 下载最新的英语版本 日期
* 数据表 Voltage Detector 数据表 (Rev. A) 2007年 6月 26日
应用手册 Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 2020年 3月 17日
应用手册 Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011年 9月 19日
测试报告 PMP2960 Test Results 2011年 1月 18日
测试报告 PMP1941 TEST RESULTS 2011年 1月 6日

设计和开发

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)。

物料清单 (BOM)

PMP1941 BOM

SLUR179.PDF (24 KB)
物料清单 (BOM)

PMP2960 BOM

SLVRA66.PDF (26 KB)
原理图

PMP1941 SCHEMATIC

SLUR178.PDF (134 KB)
原理图

PMP2960 Schematic

SLVRA65.PDF (155 KB)
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源米6体育平台手机版_好二三四系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短米6体育平台手机版_好二三四上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
参考设计

PMP22125 — 电池备用开关、充电器和监测器参考设计

此参考设计实现了对备用电池和充电器的全面监测。它支持在 12Vdc/24Vdc 电源和 12V/24V 铅酸电池间切换,电池恒流充电的电流典型值为 1A,具有适用于电池和输入源的电池维护型浮充和监测电路。
测试报告: PDF
原理图: PDF
参考设计

TIDA-010008 — 用于针对电网应用提供瞬态保护且基于平缓钳位 TVS 的参考设计

该参考设计采用多种方法,使用平缓钳位浪涌保护措施、ESD 器件、电子保险丝或负载开关,来保护交流或直流模拟输入、直流模拟输出、交流或直流二进制输入、带高侧或低侧驱动器的数字输出、LCD 偏置电源、USB 接口(电源和数据)和具有 24、12 或 5V 输入的板载电源(用于多个电网应用),使其免受过压、过载和瞬变(1.2/50us,42Ω)的影响。该设计监测温度、湿度、磁场和电源以进行诊断。
设计指南: PDF
原理图: PDF
参考设计

PMP21103 — 具备平稳过渡到辅助的 5 类 PoE PD (12V/2.5A) 电源参考设计

This reference design implements an IEEE802.3bt compliant Class 5 Power over Ethernet (PoE) Powered Device (PD) with smooth transition between the PoE input and an auxiliary supply connected to the output.  The design consists of a 12-V/2.5-A active clamp forward converter utilizing the (...)
测试报告: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

视频