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Product Overview
The LM74720QDRRRQ1 is a automotive-grade ideal diode controller from Texas Instruments, designed to replace Schottky diodes in reverse polarity protection and OR-ing applications. It features an ultra-low quiescent current of 1.5 µA (typical) and supports input voltages from 3.2 V to 65 V. The device drives an external N-channel MOSFET to emulate a diode with very low forward voltage drop, minimizing power dissipation and heat. Housed in a compact 12-WSON (3x3 mm) package, it is AEC-Q100 qualified for automotive applications.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
3.2 V to 65 V |
| Quiescent Current (typical) |
1.5 µA |
| Shutdown Current |
0.3 µA |
| Gate Drive Voltage |
10 V (typical) |
| Reverse Current Threshold |
-5 mV |
| Operating Temperature |
-40°C to +125°C |
| Package |
12-WSON (3x3 mm) |
| Qualification |
AEC-Q100 |
Key Features
- Ultra-low quiescent current: 1.5 µA (typical)
- Wide input voltage range: 3.2 V to 65 V
- Fast reverse current detection and response
- Drives N-channel MOSFET with 10 V gate drive
- Low shutdown current: 0.3 µA
- Small 12-WSON package (3x3 mm)
- AEC-Q100 qualified for automotive
Target Applications
- Automotive reverse battery protection (e.g., infotainment systems, ADAS ECUs)
- Redundant power supply OR-ing (e.g., 5G base station power modules)
- Industrial power protection (e.g., PLC, motor drives)
- Battery management systems (e.g., dashboard battery monitoring)
Global Supply Chain & Wholesale Solutions
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LM74720QDRRRQ1. Our core advantages include:
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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
LM74720QDRRRQ1 是德州儀器推出的車規級理想二極管控制器,用於替代肖特基二極管進行反極性保護和 OR-ing 應用。其典型靜態電流僅 1.5 µA,支持 3.2 V 至 65 V 的輸入電壓。該器件驅動外部 N 溝道 MOSFET,模擬具有極低正向壓降的二極管,從而最大限度地減少功耗和發熱。採用緊湊的 12-WSON(3x3 mm)封裝,通過 AEC-Q100 認證,適用於汽車應用。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
3.2 V 至 65 V |
| 典型靜態電流 |
1.5 µA |
| 關斷電流 |
0.3 µA |
| 柵極驅動電壓 |
10 V(典型值) |
| 反向電流閾值 |
-5 mV |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
12-WSON(3x3 mm) |
| 認證 |
AEC-Q100 |
核心特性
- 超低靜態電流:1.5 µA(典型值)
- 寬輸入電壓範圍:3.2 V 至 65 V
- 快速反向電流檢測和響應
- 驅動 N 溝道 MOSFET,提供 10 V 柵極驅動
- 低關斷電流:0.3 µA
- 小型 12-WSON 封裝(3x3 mm)
- 通過 AEC-Q100 汽車級認證
典型應用場景
- 汽車反極性保護(例如信息娛樂系統、ADAS ECU)
- 冗餘電源 OR-ing(例如 5G 基站電源模塊)
- 工業電源保護(例如 PLC、電機驅動)
- 電池管理系統(例如儀表板電池監控)
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