TPS3803

現行

低功率電壓偵測器

alarm通知 立即訂購

產品詳細資料

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.

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類型 標題 日期
* Data sheet Voltage Detector datasheet (Rev. A) 2007年 6月 26日
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 2020年 3月 17日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011年 9月 19日
Test report PMP2960 Test Results 2011年 1月 18日
Test report PMP1941 TEST RESULTS 2011年 1月 6日

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訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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