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Product Overview
The LM239AQDRQ1 from Texas Instruments is a quad differential comparator designed for automotive and industrial applications. It operates from a single power supply over a wide voltage range of 2 V to 36 V (or ±1 V to ±18 V for dual supplies) and features low supply current drain (0.4 mA per comparator at 5 V) independent of the supply voltage. The open-collector outputs allow wired-AND connections and can drive loads up to 36 V. This device is qualified to AEC-Q100 for automotive applications.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
4 |
| Supply Voltage (Single) |
2 V to 36 V |
| Supply Voltage (Dual) |
±1 V to ±18 V |
| Supply Current (per Comparator) |
0.4 mA typ at 5 V |
| Input Offset Voltage |
±2 mV typ |
| Input Bias Current |
25 nA typ |
| Response Time |
1.3 µs typ |
| Output Type |
Open Collector |
| Operating Temperature |
-40°C to +125°C |
| Package |
14-SOIC |
Key Features
- Wide supply voltage range: 2 V to 36 V
- Low supply current: 0.4 mA per comparator
- Open-collector outputs for wired-AND logic
- Low input offset voltage: ±2 mV typical
- Common-mode input voltage range includes ground
- AEC-Q100 qualified for automotive
- Available in 14-SOIC package
Target Applications
- Automotive: Battery management systems, engine control units, dashboard warning circuits
- Industrial: Motor control, overcurrent detection, level sensing
- Consumer: Power supply monitoring, window comparators
- Telecom: 5G base station power rail monitoring
Global Supply Chain & Wholesale Solutions
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LM239AQDRQ1. 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
LM239AQDRQ1 是德州儀器推出的四通道差分比較器,專為汽車和工業應用設計。它可在 2 V 至 36 V 的單電源(或 ±1 V 至 ±18 V 的雙電源)下工作,並具有低電源電流消耗(5 V 時每通道 0.4 mA),與電源電壓無關。開集電極輸出允許線與連接,並可驅動高達 36 V 的負載。該器件通過 AEC-Q100 汽車認證。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
4 |
| 單電源電壓 |
2 V 至 36 V |
| 雙電源電壓 |
±1 V 至 ±18 V |
| 每通道電源電流 |
5 V 時典型值 0.4 mA |
| 輸入失調電壓 |
典型值 ±2 mV |
| 輸入偏置電流 |
典型值 25 nA |
| 響應時間 |
典型值 1.3 µs |
| 輸出類型 |
開集電極 |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
14-SOIC |
核心特性
- 寬電源電壓範圍:2 V 至 36 V
- 低電源電流:每通道 0.4 mA
- 開集電極輸出,支持線與邏輯
- 低輸入失調電壓:典型值 ±2 mV
- 共模輸入電壓範圍包含地電位
- 通過 AEC-Q100 汽車認證
- 採用 14-SOIC 封裝
典型應用場景
- 汽車:電池管理系統、發動機控制單元、儀表盤報警電路
- 工業:電機控制、過流檢測、電平感測
- 消費電子:電源監控、窗口比較器
- 電信:5G 基站電源軌監控
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