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Product Overview
The L4981BD013TR is a high-performance Power Factor Correction (PFC) controller from STMicroelectronics, designed for AC-DC converters requiring high power factor and low harmonic distortion. It operates in transition mode (TM) with a proprietary multiplier to achieve near-unity power factor. The device integrates a 400mA gate driver, making it suitable for driving external MOSFETs in boost PFC topologies. Housed in a 20-SOIC package with a 7.50mm width, it offers a compact solution for medium-power applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (Vcc) |
10V to 22V |
| Gate Drive Current |
400mA (source/sink) |
| Operating Frequency |
Up to 200kHz |
| Power Factor |
>0.99 |
| THD |
<10% |
| Start-up Threshold |
12V |
| UVLO Hysteresis |
1V |
| Operating Temperature |
-40°C to 150°C |
| Package |
20-SOIC (0.295", 7.50mm width) |
Key Features
- Transition mode PFC controller with high accuracy multiplier
- Low start-up current (50µA typical)
- Overvoltage protection (OVP)
- Overcurrent protection (OCP) with cycle-by-cycle limiting
- Enable/disable function for standby operation
- Internal soft-start
- Low quiescent current (4mA typical)
Target Applications
- AC-DC adapters for laptops and gaming consoles
- LED lighting drivers (e.g., 100W street light)
- Industrial power supplies for 5G base stations
- Home appliance power supplies (e.g., air conditioner inverter)
- Telecom rectifiers (48V output)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
L4981BD013TR. 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
L4981BD013TR 是意法半導體推出的一款高性能功率因數校正(PFC)控制器,專為需要高功率因數和低諧波失真的 AC-DC 轉換器設計。它採用過渡模式(TM)工作,並內置專有乘法器,可實現接近單位功率因數。該器件集成了 400mA 柵極驅動器,適用於驅動升壓 PFC 拓撲中的外部 MOSFET。採用 20-SOIC 封裝(寬度 7.50mm),為中等功率應用提供了緊湊的解決方案。
詳細技術參數
| 參數 |
數值 |
| 電源電壓(Vcc) |
10V 至 22V |
| 柵極驅動電流 |
400mA(源/漏) |
| 工作頻率 |
最高 200kHz |
| 功率因數 |
>0.99 |
| 總諧波失真 |
<10% |
| 啟動閾值 |
12V |
| 欠壓鎖定遲滯 |
1V |
| 工作溫度 |
-40°C 至 150°C |
| 封裝 |
20-SOIC(0.295",7.50mm 寬) |
核心特性
- 過渡模式 PFC 控制器,帶高精度乘法器
- 低啟動電流(典型值 50µA)
- 過壓保護(OVP)
- 逐週期限流的過流保護(OCP)
- 使能/禁用功能,支持待機操作
- 內部軟啟動
- 低靜態電流(典型值 4mA)
典型應用場景
- 筆記本電腦和遊戲機的 AC-DC 適配器
- LED 照明驅動器(例如 100W 路燈)
- 5G 基站的工業電源
- 家用電器電源(例如空調逆變器)
- 電信整流器(48V 輸出)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 L4981BD013TR 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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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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