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Product Overview
The TPS2042DR from Texas Instruments is a dual-channel, current-limited power-distribution switch designed for applications requiring precision current limiting and thermal protection. Housed in an 8-pin SOIC package, this device provides independent enable control for each channel, making it ideal for USB ports, peripheral power management, and hot-swap applications. With a continuous output current of 0.5A per channel and an operating voltage range of 2.7V to 5.5V, it offers robust protection against overcurrent, overtemperature, and reverse current.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
2 |
| Continuous Output Current |
0.5 A per channel |
| Operating Voltage Range |
2.7 V to 5.5 V |
| On-Resistance (typical) |
70 mΩ |
| Current Limit Accuracy |
±20% |
| Enable Logic |
Active High |
| Package |
8-SOIC |
| Operating Temperature Range |
-40°C to +85°C |
Key Features
- Dual-channel independent power distribution
- Precise current limiting (0.5A per channel)
- Thermal shutdown protection
- Reverse current blocking
- Under-voltage lockout (UVLO)
- Low quiescent current (10 µA typical)
- Fast transient response
Target Applications
- USB hubs and ports (e.g., USB 2.0/3.0 host controllers)
- 5G base station power management
- Automotive dashboard infotainment systems
- Industrial PLC I/O modules
- Portable electronics (e.g., tablets, smartphones)
- Hot-swap power supplies
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TPS2042DR. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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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.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
TPS2042DR 是德州儀器 (TI) 推出的雙通道限流電源分配開關,採用 8 引腳 SOIC 封裝。該器件為每個通道提供獨立的使能控制,適用於 USB 端口、外設電源管理及熱插拔應用。每通道連續輸出電流為 0.5A,工作電壓範圍為 2.7V 至 5.5V,具備過流、過溫及反向電流保護功能。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
2 |
| 每通道連續輸出電流 |
0.5 A |
| 工作電壓範圍 |
2.7 V 至 5.5 V |
| 導通電阻 (典型值) |
70 mΩ |
| 限流精度 |
±20% |
| 使能邏輯 |
高電平有效 |
| 封裝 |
8-SOIC |
| 工作溫度範圍 |
-40°C 至 +85°C |
核心特性
- 雙通道獨立電源分配
- 精確限流 (每通道 0.5A)
- 熱關斷保護
- 反向電流阻斷
- 欠壓鎖定 (UVLO)
- 低靜態電流 (典型值 10 µA)
- 快速瞬態響應
典型應用場景
- USB 集線器與端口 (例如 USB 2.0/3.0 主機控制器)
- 5G 基站電源管理
- 汽車儀表板信息娛樂系統
- 工業 PLC I/O 模塊
- 便攜式電子設備 (如平板電腦、智能手機)
- 熱插拔電源
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TPS2042DR 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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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。
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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。
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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。
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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。
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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。
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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。
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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。
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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。
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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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