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Product Overview
The LM339BIRTER from Texas Instruments is a quad-channel, low-power voltage comparator designed for industrial and automotive applications. It operates from a single supply voltage ranging from 2V to 36V or dual supplies of ±1V to ±18V, with very low supply current (0.4 mA per comparator typical). The device features open-collector outputs that can be connected to various logic levels, making it versatile for interfacing with microcontrollers and other digital systems. Packaged in a compact 16-WQFN (3x3 mm), it is ideal for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
4 |
| Supply Voltage (Single) |
2V to 36V |
| Supply Voltage (Dual) |
±1V to ±18V |
| Supply Current (per comparator) |
0.4 mA (typical) |
| Input Offset Voltage |
±2 mV (typical) |
| Input Bias Current |
25 nA (typical) |
| Response Time |
1.3 μs (typical) |
| Output Type |
Open Collector |
| Operating Temperature Range |
-40°C to +125°C |
| Package |
16-WQFN (3x3 mm) |
Key Features
- Quad comparator in a small 3x3 mm WQFN package
- Wide supply voltage range: 2V to 36V (single) or ±1V to ±18V (dual)
- Low supply current: 0.4 mA per comparator typical
- Low input offset voltage: ±2 mV typical
- Open-collector outputs for flexible logic interfacing
- Fast response time: 1.3 μs typical
- Extended temperature range: -40°C to +125°C
Target Applications
- 5G base station power supply monitoring and fault detection
- Automotive dashboard warning systems (e.g., overvoltage/undervoltage detection)
- Industrial sensor signal conditioning and threshold detection
- Battery management systems for voltage level comparison
- Motor control circuits for overcurrent protection
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
LM339BIRTER. 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
LM339BIRTER 是德州儀器(TI)推出的一款四通道低功耗電壓比較器,專為工業和汽車應用設計。它可在 2V 至 36V 的單電源或 ±1V 至 ±18V 的雙電源下工作,典型每通道靜態電流僅 0.4 mA。器件採用開集電極輸出,可連接至各種邏輯電平,便於與微控制器及其他數字系統接口。封裝為緊湊的 16-WQFN(3x3 mm),適合空間受限的設計。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
4 |
| 單電源電壓 |
2V 至 36V |
| 雙電源電壓 |
±1V 至 ±18V |
| 每通道靜態電流 |
0.4 mA(典型值) |
| 輸入失調電壓 |
±2 mV(典型值) |
| 輸入偏置電流 |
25 nA(典型值) |
| 響應時間 |
1.3 μs(典型值) |
| 輸出類型 |
開集電極 |
| 工作溫度範圍 |
-40°C 至 +125°C |
| 封裝 |
16-WQFN(3x3 mm) |
核心特性
- 四通道比較器,採用 3x3 mm WQFN 小型封裝
- 寬電源電壓範圍:2V 至 36V(單電源)或 ±1V 至 ±18V(雙電源)
- 低靜態電流:每通道典型值 0.4 mA
- 低輸入失調電壓:典型值 ±2 mV
- 開集電極輸出,便於靈活的邏輯接口
- 快速響應時間:典型值 1.3 μs
- 寬溫度範圍:-40°C 至 +125°C
典型應用場景
- 5G 基站電源監控與故障檢測
- 汽車儀表盤警告系統(例如過壓/欠壓檢測)
- 工業傳感器信號調理與閾值檢測
- 電池管理系統中的電壓比較
- 電機控制電路中的過流保護
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 LM339BIRTER 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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