Ideal for space-critical applications, the LM4040-N precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount package. The advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040-N easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The minimum operating current increases from 60 µA for the 2.5-V LM4040-N to 100 µA for the 10-V LM4040-N. All versions have a maximum operating current of 15 mA.
The LM4040-N uses a fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
Also available is the LM4041-N with two reverse breakdown voltage versions: adjustable and 1.2 V. See the LM4041-N data sheet (SNOS641).
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM4040-N/-Q1 Precision Micropower Shunt Voltage Reference datasheet (Rev. K) | 2016年 6月 2日 | |
| Application brief | Using Voltage Supervisors in High Voltage Applications (Rev. B) | PDF | HTML | 2023年 2月 20日 | |
| Functional safety information | LM4040-N-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2019年 12月 18日 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Technical article | How to use a voltage reference as a voltage regulator | PDF | HTML | 2018年 12月 4日 | |
| Application note | AN-1525 Single Supply Operation of the DAC0800 and DAC0802 (Rev. A) | 2013年 4月 22日 | ||
| Application note | Negative Buck Switching Regulator (using LM258x) | 2007年 3月 21日 |
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This external resistor quick-start calculator tool lets you easily calculate valid external resistor values relative to voltage reference, supply and load-current bounds. With these inputs, you can instantly view the resulting calculations and use the color-coded indications to understand (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOT-23 (DBZ) | 3 | 檢視選項 |