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Product Overview
The LM2903VQDR is a dual differential comparator from Texas Instruments, designed for low-power and wide supply voltage range applications. It operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V, making it versatile for various industrial and automotive systems. The device features low supply current (0.4 mA per comparator), open-collector outputs for wired-OR configurations, and a common-mode input voltage range that includes ground. Housed in an 8-SOIC package, the LM2903VQDR is ideal for space-constrained designs requiring high reliability.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
2 |
| Supply Voltage (Single) |
2V to 36V |
| Supply Voltage (Dual) |
±1V to ±18V |
| Supply Current (per comparator) |
0.4 mA typical |
| Input Offset Voltage |
±7 mV max |
| Input Bias Current |
25 nA typical |
| Response Time |
1.3 µs typical |
| Output Type |
Open-collector |
| Operating Temperature |
-40°C to +125°C |
| Package |
8-SOIC |
Key Features
- Wide supply voltage range: 2V to 36V (single) or ±1V to ±18V (dual)
- Low supply current: 0.4 mA per comparator
- Open-collector outputs for flexible logic interfacing
- Common-mode input voltage range includes ground
- Low input offset voltage: ±7 mV max
- Fast response time: 1.3 µs typical
- Operating temperature range: -40°C to +125°C
- Industry-standard 8-SOIC package
Target Applications
- 5G base station power supply monitoring
- Automotive dashboard warning systems (e.g., overvoltage detection)
- Industrial motor control (overcurrent detection)
- Battery management systems (under/overvoltage thresholds)
- Signal conditioning in sensor interfaces
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM2903VQDR. 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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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
LM2903VQDR 是德州儀器 (TI) 推出的雙路差分比較器,專為低功耗和寬電源電壓範圍應用設計。它可在 2V 至 36V 的單電源或 ±1V 至 ±18V 的雙電源下工作,適用於各種工業和汽車系統。該器件具有低電源電流(每個比較器 0.4 mA)、開集電極輸出(支持線與配置)以及包含地電平的共模輸入電壓範圍。採用 8-SOIC 封裝,LM2903VQDR 非常適合需要高可靠性的空間受限設計。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
2 |
| 單電源電壓 |
2V 至 36V |
| 雙電源電壓 |
±1V 至 ±18V |
| 電源電流(每個比較器) |
典型值 0.4 mA |
| 輸入失調電壓 |
最大 ±7 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 |
8-SOIC |
核心特性
- 寬電源電壓範圍:單電源 2V 至 36V 或雙電源 ±1V 至 ±18V
- 低電源電流:每個比較器 0.4 mA
- 開集電極輸出,靈活連接邏輯電路
- 共模輸入電壓範圍包含地電平
- 低輸入失調電壓:最大 ±7 mV
- 快速響應時間:典型值 1.3 µs
- 工作溫度範圍:-40°C 至 +125°C
- 業界標準 8-SOIC 封裝
典型應用場景
- 5G 基站電源監控
- 汽車儀表盤警告系統(如過壓檢測)
- 工業電機控制(過流檢測)
- 電池管理系統(欠壓/過壓閾值)
- 傳感器接口信號調理
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LM2903VQDR 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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