LM4041D12
- 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
PMP8973 — 18Vdc-60Vdc 輸入、3.3V/15A 主動鉗位順向式、1/8 磚型參考設計
PMP8973 參考設計可從 18V 至 60V 電信輸入產生 3.3V/15A 輸出。UCC2897A 控制主動箝位順向式轉換器功率級。CSD16415Q5 和 CSD18502Q5B 的低閘極電荷和低 RDSon 作為同步整流器實作，可提供高效率設計。此設計以標準的第八個磚型封裝配置，可實現峰值效率超過 92%。 其中包括輸出電壓的遠程感測。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
| SOT-SC70 (DCK) | 5 | Ultra Librarian |