首頁 電源管理 監控器和重設 IC 重設與看門狗 IC
首頁
電源管理
監控器和重設 IC
重設與看門狗 IC

TPS3805H33-Q1

現行

車用、雙軌 (可調整或 3.3-V 系統) 電壓偵測器

立即訂購
產品規格表

TPS3805H33-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.226, 3.05 Features Ease-of-use Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Push-Pull 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 2 Threshold voltage 1 (typ) (V) 1.226, 3.05 Features Ease-of-use Reset threshold accuracy (%) 1.5 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Push-Pull 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.
filter 尋找其它 重設與看門狗 IC
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
功能與所比較的裝置相似
TPS3899-Q1 現行 具有可編程感測和重設延遲的車用奈米功率監控器 Single channel reset IC with adjustable threshold voltage options and separate VDD and SENSE pins

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 3
重要文件 類型 標題 格式選項 日期
* Data sheet TPS380x-Q1 Voltage Detectors datasheet (Rev. C) PDF | HTML 2015年 7月 24日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Selection guide Automotive Supervisor and Reset IC Selection Guide 2016年 2月 22日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS3803Q1EVM — 適用於 TPS3803x-Q1 電壓偵測器的評估模組

TPS3803Q1EVM 評估模組 (EVM) 包含 TPS3803-Q1 和 TPS3805-Q1 監控電路系列。這些監控器 IC 提供電路初始化和時序監管，主要用於以 DSP 和處理器為基礎的系統。此 EVM 具有兩個版本的 TPS3803-Q1 裝置：TPS3803-01-Q1 和 TPS3803G15-Q1，以及 TPS3805H33-Q1 裝置，可供輕鬆進行評估。TPS3803G15-Q1 版本具固定感測閾值電壓，而 TPS3803-01-Q1 版本則具有由外部電阻分壓器配置的可調整感測輸入。TPS3805H33-Q1 裝置具有兩個感測輸入和固定閾值電壓。
使用指南: PDF
TI.com 無法提供
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片