UC494J TI PWM Controller | 16-CDIP | Dual Output, 500kHz

Product Overview

The UC494J from Texas Instruments is a fixed-frequency pulse-width modulation (PWM) control circuit designed for a wide range of power supply applications. It integrates all the functions required for building a regulated power supply, including an internal oscillator, error amplifiers, a reference voltage, and a PWM comparator. The device operates at a switching frequency up to 500 kHz and provides dual complementary outputs, making it suitable for push-pull, half-bridge, and full-bridge topologies. Housed in a 16-pin ceramic dual-in-line package (CDIP), the UC494J offers enhanced thermal performance and reliability for industrial and military-grade applications.

Detailed Technical Specifications

Key Features

• Complete PWM control circuit
• Dual complementary outputs
• Internal oscillator with frequency programming
• Adjustable dead time control
• 5V reference voltage with 1% accuracy
• Under-voltage lockout (UVLO)
• Wide operating temperature range

Target Applications

• 5G base station power supplies
• Automotive dashboard power management
• Industrial motor drives
• Telecom rectifiers
• Military-grade DC-DC converters

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for UC494J. 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

UC494J 是德州儀器（TI）推出的一款固定頻率脈寬調製（PWM）控制電路，專為各種電源應用設計。它集成了構建穩壓電源所需的所有功能，包括內部振盪器、誤差放大器、參考電壓和 PWM 比較器。該器件的工作開關頻率高達 500 kHz，並提供雙路互補輸出，適用於推挽、半橋和全橋拓撲。UC494J 採用 16 引腳陶瓷雙列直插封裝（CDIP），具有增強的熱性能和可靠性，適用於工業和軍用級應用。

詳細技術參數

核心特性

• 完整的 PWM 控制電路
• 雙路互補輸出
• 內部振盪器，頻率可編程
• 可調死區時間控制
• 5V 參考電壓，精度 1%
• 欠壓鎖定（UVLO）
• 寬工作溫度範圍

典型應用場景

• 5G 基站電源
• 汽車儀表板電源管理
• 工業電機驅動
• 電信整流器
• 軍用級 DC-DC 轉換器

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 UC494J 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]