LM4041D
- 1.225V Fixed and adjustable outputs (1.225V to 10V)
- Tight output tolerances and low temperature
coefficient
- Maximum 0.1%, 100ppm/°C – A grade
- Maximum 0.2%, 100ppm/°C – B grade
- Maximum 0.5%, 100ppm/°C – C grade
- Maximum 1.0%, 150ppm/°C – D grade
- Low output noise . . . 20µVRMS (typical)
- Wide operating current range . . . 45µA (typical) to 12mA
- Stable with all capacitive loads; no output capacitor required
- Available in
- Industrial temperature: –40°C to 85°C
- Extended temperature: –40°C to 125°C
The LM4041 series of shunt voltage references are versatile, easy-to-use references designed for a wide array of applications. These parts do not require external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to maintain a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (maximum) for the A grade to 1% (maximum) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for applications. The LM4041 is available in a fixed (1.225V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225V and 10V).
Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45µA (typical), the LM4041 also designed for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM4041 Precision Micropower Shunt Voltage Reference datasheet (Rev. H) | PDF | HTML | 2025/3/19 | ||
| 電子書 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019/6/28 | ||||
| 更多文件說明 | SLL Precision Reference Product Clip | 2006/2/23 |
設計與開發
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SHUNT-REFERENCE-CALC — Shunt Reference Selector and Design Calculator
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採用帕爾帖效應的熱電冷卻 (TEC) 裝置可用於這類應用的溫度控制。電流流過 TEC 的方向決定了它是被加熱還是被冷卻。本設計指南示範如何使用 TI 的低靜態電流 (11µA) 降壓升壓轉換器 (TPS63802) 搭配微控制器 (MSP430FR2433) 來實作 TEC 驅動器，以精確調節敏感裝置的溫度。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-SC70 (DCK) | 5 | Ultra Librarian |
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |