TPS3838K33DBVR TI Supervisory Circuit | SOT-23-5 | 2.5V Threshold, Active-Low Reset

Product Overview

The TPS3838K33DBVR from Texas Instruments is a low-power, voltage supervisory circuit designed for monitoring power supplies in microprocessor and digital systems. It provides a precision voltage reference and a comparator that monitors the supply voltage (VDD) and asserts a reset signal when VDD falls below a factory-programmed threshold. The device features an active-low, open-drain reset output that remains asserted for a fixed timeout period after VDD rises above the threshold. Housed in a compact SOT-23-5 package, it is ideal for space-constrained applications requiring reliable power-on reset and brown-out protection.

Detailed Technical Specifications

Key Features

• Ultra-low supply current of 0.5 µA extends battery life in portable devices.
• Precision voltage threshold with ±1.5% accuracy over temperature.
• Fixed reset timeout period eliminates external timing components.
• Open-drain reset output allows wired-OR connection with other reset sources.
• Small SOT-23-5 package saves board space.
• Glitch immunity protects against fast transients on the supply rail.

Target Applications

• 5G base station power management modules requiring reliable brown-out detection.
• Automotive dashboard infotainment systems needing power-on reset for microcontrollers.
• Industrial sensor nodes with battery-powered operation.
• Portable medical devices like glucose monitors.
• IoT edge devices such as smart thermostats.

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TPS3838K33DBVR. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

TPS3838K33DBVR 是德州儀器推出的一款低功耗電壓監控電路，專為微處理器和數位系統的電源監控設計。它提供精確的電壓參考和比較器，監控電源電壓 (VDD)，並在 VDD 低於工廠編程的閾值時發出復位信號。該器件具有低電平有效、開漏輸出的復位信號，在 VDD 回升至閾值以上後，復位信號會保持一段固定的超時時間。採用緊湊的 SOT-23-5 封裝，非常適合需要可靠上電復位和掉電保護的空間受限應用。

詳細技術參數

核心特性

• 超低靜態電流 0.5 µA，延長便攜設備電池壽命。
• 精確電壓閾值，溫度範圍內精度 ±1.5%。
• 固定復位超時時間，無需外部定時元件。
• 開漏復位輸出，可與其他復位源進行線或連接。
• 小型 SOT-23-5 封裝，節省電路板空間。
• 抗干擾能力強，防止電源軌上的快速瞬態。

典型應用場景

• 5G 基站電源管理模塊，需要可靠的掉電檢測。
• 汽車儀表盤信息娛樂系統，需要為微控制器提供上電復位。
• 電池供電的工業傳感器節點。
• 便攜式醫療設備，如血糖監測儀。
• 物聯網邊緣設備，如智能恆溫器。

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TPS3838K33DBVR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]