主页 电源管理 监控器和复位 IC
主页
电源管理
监控器和复位 IC
NEW

TPS38

正在供货

具有超低静态电流和延时功能的 65V 双通道监控器

立即订购
数据表

TPS38

正在供货
数据表 立即订购

产品详细信息

Number of supplies monitored 1, 2 Threshold voltage 1 (Typ) (V) 0.8 Features Detection time delay, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only, Wide input voltage Reset threshold accuracy (%) 1.5 Output driver type/reset output Active-high, Active-low, Open-drain, Push-pull Time delay (ms) Programmable Rating Catalog Operating temperature range (C) -40 to 125
Number of supplies monitored 1, 2 Threshold voltage 1 (Typ) (V) 0.8 Features Detection time delay, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only, Wide input voltage Reset threshold accuracy (%) 1.5 Output driver type/reset output Active-high, Active-low, Open-drain, Push-pull Time delay (ms) Programmable Rating Catalog Operating temperature range (C) -40 to 125
WSON (DSK) 10 6 mm² 2.5 x 2.5
  • Functional Safety-Capable
  • Wide supply voltage range: 2.7 V to 65 V
  • SENSE and RESET pins are 65 V graded
  • Low quiescent current: 1 µA (typical)
  • Flexible and wide voltage threshold options Table 12-1
    • 2.7 V to 36 V (1.5% maximum accuracy)
    • 800 mV option (1% maximum accuracy)
  • Built-in hysteresis (VHYS)
    • Percentage options: 2% to 13% (1% steps)
    • Fixed options: VTH < 8 V = 0.5 V, 1 V, 1.5 V, 2 V, 2.5 V
  • Programmable reset time delay
    • 10 nF = 12.8 ms, 10 µF = 12.8 s
  • Programmable sense time delay
    • 10 nF = 1.28 ms, 10 µF = 1.28 s
  • Manual Reset (MR) feature
  • Output reset latching feature
  • Output topology:
    • Channel 1: Open-Drain or Push-Pull
    • Channel 2: Open-Drain
  • Functional Safety-Capable
  • Wide supply voltage range: 2.7 V to 65 V
  • SENSE and RESET pins are 65 V graded
  • Low quiescent current: 1 µA (typical)
  • Flexible and wide voltage threshold options Table 12-1
    • 2.7 V to 36 V (1.5% maximum accuracy)
    • 800 mV option (1% maximum accuracy)
  • Built-in hysteresis (VHYS)
    • Percentage options: 2% to 13% (1% steps)
    • Fixed options: VTH < 8 V = 0.5 V, 1 V, 1.5 V, 2 V, 2.5 V
  • Programmable reset time delay
    • 10 nF = 12.8 ms, 10 µF = 12.8 s
  • Programmable sense time delay
    • 10 nF = 1.28 ms, 10 µF = 1.28 s
  • Manual Reset (MR) feature
  • Output reset latching feature
  • Output topology:
    • Channel 1: Open-Drain or Push-Pull
    • Channel 2: Open-Drain

The TPS38 is a 65 V input voltage detector with 1 µA IDD, 1% accuracy, and with a fast 10 µs detection time. This device can be connected directly to 12 V / 24 V automotive battery system for continuous monitoring of over (OV) or under (UV) voltage conditions; with its internal resistor divider, it offers the smallest total solution size. Wide hysteresis voltage options are available to ignore cold crank, start-stop and various car battery voltage transients. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability automotive systems and SENSE can monitor higher and lower voltages than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails; CTRx operates as a manual reset (MR) that can be used to force a system reset.

The TPS38 is available in a WSON or SOT-23 package. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664. TPS38 operates over –40°C to +125°C TA.

The TPS38 is a 65 V input voltage detector with 1 µA IDD, 1% accuracy, and with a fast 10 µs detection time. This device can be connected directly to 12 V / 24 V automotive battery system for continuous monitoring of over (OV) or under (UV) voltage conditions; with its internal resistor divider, it offers the smallest total solution size. Wide hysteresis voltage options are available to ignore cold crank, start-stop and various car battery voltage transients. Built-in hysteresis on the SENSE pins prevents false reset signals when monitoring a supply voltage rail.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability automotive systems and SENSE can monitor higher and lower voltages than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pins. CTSx and CTRx pins allow delay adjustability on the rising and falling edges of the RESET signals. Also, CTSx functions as a debouncer by ignoring voltage glitches on the monitored voltage rails; CTRx operates as a manual reset (MR) that can be used to force a system reset.

The TPS38 is available in a WSON or SOT-23 package. The central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC60664. TPS38 operates over –40°C to +125°C TA.
open-in-new 查找其他 监控器和复位 IC
下载

您可能感兴趣的相似产品

open-in-new 比较产品
功能与比较器件相同但引脚有所不同。
NEW TPS3760 正在供货 具有感应功能、超低静态电流和延迟的 65V 过压或欠压监控器 Single-channel product

技术文档

star = 有关此产品的 TI 精选热门文档
未找到结果。请清除搜索，并重试。
查看全部 1
类型 项目标题 下载最新的英语版本 日期
* 数据表 TPS38 Wide VIN 65 V Dual Channel Overvoltage or Undervoltage (OV or UV) Detector with Programmable Sense and Reset Function 数据表 PDF | HTML 12 Apr 2022

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

评估板

TPS37AQ1EVM — 用于具有超低 IQ 和延时功能的 65V 窗口监控器的 TPS37 评估模块

TPS37 评估模块 (EVM) 是一个用于评估 TPS37 和 TPS38 系列产品的平台。这些产品可在维持低静态电流的同时提供高达 65V 的工作电压，并提供可调整电压阈值、可调节复位、感应延时时间和可配置手动复位。

TPS37AQ1EVM 支持所有器件输出拓扑，并包括可置于跳线上的分流器，适用于不同输出配置。要了解详细信息，请参阅数据表。

TI.com 無法提供
仿真模型

TPS38 and TPS38-Q1 PSpice Transient Model TPS38 and TPS38-Q1 PSpice Transient Model

下载
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产品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，可缩短产品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 (...)
发送申请
封装 引脚数 下载
SON (DSK) 10 了解详情

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
  • 认证摘要
  • 持续可靠性监测

支持与培训

视频