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TPS3803-Q1

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汽车类单通道电压检测器

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数据表

TPS3803-Q1

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产品详情

Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.226, 1.4 Features Ease-of-use Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Operating temperature range (°C) -40 to 125
Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 1.226, 1.4 Features Ease-of-use Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Watchdog timer WDI (s) None Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Qualified for Automotive Applications
  • Single Voltage Detector (TPS3803): Adjustable
    and 1.5 V
  • Dual Voltage Detector (TPS3805): Adjustable and
    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 125°C
  • 5-Pin SC-70 Package
  • Qualified for Automotive Applications
  • Single Voltage Detector (TPS3803): Adjustable
    and 1.5 V
  • Dual Voltage Detector (TPS3805): Adjustable and
    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 125°C
  • 5-Pin SC-70 Package

The TPS3803-Q1 and TPS3805-Q1 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TPS3803G15-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01-Q1 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-Q1 devices provide a second adjustable SENSE input. RESET is asserted in case either 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-Q1 and TPS3805-Q1 devices are characterized for operation over a temperature range of –40°C to 125°C.

The TPS3803-Q1 and TPS3805-Q1 families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TPS3803G15-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider, whereas the TPS3803-01-Q1 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-Q1 devices provide a second adjustable SENSE input. RESET is asserted in case either 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-Q1 and TPS3805-Q1 devices are characterized for operation over a temperature range of –40°C to 125°C.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS380x-Q1 Voltage Detectors 数据表 (Rev. C) PDF | HTML 2015年 7月 24日
测试报告 PMP1941 TEST RESULTS 2011年 1月 6日

设计和开发

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评估板

TPS3803Q1EVM — TPS3803x-Q1 电压检测器评估模块

TPS3803Q1EVM 评估模块 (EVM) 包含 TPS3803-Q1 和 TPS3805-Q1 系列监控电路。这些监控电路主要为 DSP 和基于处理器的系统提供电路初始化和计时监控功能。该 EVM 配备 TPS3803-01-Q1 和 TPS3803G15-Q1 两个 TPS3803-Q1 器件版本，以及 TPS3805H33-Q1 器件，以便于评估。TPS3803G15-Q1 版本具有固定的检测阈值电压，TPS3803-01-Q1 版本具有可通过外部电阻分压器配置的可调节检测输入。TPS3805H33-Q1 器件具有两个检测输入和一个固定阈值电压。
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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

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