Typical Output ImpedanceThe TLVH431 devices are low-voltage 3-terminal adjustable voltage references, with thermal stability specified over the automotive temperature range. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 2). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLVH431 devices are ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 . Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TLVH431A-Q1, TLVH431B-Q1 Low-Voltage Adjustable Precision Shunt Regulator . datasheet (Rev. B) | 2011年 3月 28日 | |
| Functional safety information | TLVH431B-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021年 9月 22日 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
| Application brief | Automotive LED Lighting with Adjustable Shunt References | 2018年 7月 17日 |
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
| SOT-23 (DBZ) | 3 | Ultra Librarian |
This is the first release of this tool.