UC3903Q TI Power Management IC | 20-PLCC (9x9) | Quad Supply Supervisor

Product Overview

The UC3903Q from Texas Instruments is a quad supply supervisor IC designed for monitoring multiple voltage rails in complex electronic systems. Housed in a compact 20-PLCC (9x9 mm) package, it provides precise undervoltage and overvoltage detection with programmable thresholds and hysteresis. This device is ideal for applications requiring reliable power sequencing and fault monitoring, such as telecommunications infrastructure, industrial control systems, and automotive electronics.

Detailed Technical Specifications

Key Features

• Quad independent supply voltage supervisors
• Programmable undervoltage and overvoltage thresholds
• Adjustable hysteresis via external resistors
• Open-drain reset outputs with internal pull-up option
• Low quiescent current for power-sensitive designs
• Wide supply voltage range (4.5V to 40V)
• Compact 20-PLCC package for space-constrained applications

Target Applications

• 5G base station power management
• Automotive dashboard and infotainment systems
• Industrial PLC and motor control units
• Telecommunications routers and switches
• Medical equipment power monitoring

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC3903Q. 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

UC3903Q 是德州儀器（TI）推出的一款四路電源監控器，專為監控複雜電子系統中的多個電壓軌而設計。採用緊湊的 20-PLCC（9x9 mm）封裝，提供精確的欠壓和過壓檢測功能，並支援可編程閾值和遲滯。該器件非常適合需要可靠電源排序和故障監控的應用，如電信基礎設施、工業控制系統和汽車電子。

詳細技術參數

核心特性

• 四路獨立電源電壓監控
• 可編程欠壓和過壓閾值
• 通過外部電阻調節遲滯
• 開漏復位輸出，可選內部上拉
• 低靜態電流，適合功耗敏感設計
• 寬電源電壓範圍（4.5V 至 40V）
• 緊湊的 20-PLCC 封裝，節省空間

典型應用場景

• 5G 基站電源管理
• 汽車儀表盤和信息娛樂系統
• 工業 PLC 和電機控制單元
• 電信路由器與交換機
• 醫療設備電源監控

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC3903Q 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]