The 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 Ω. 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.
| TLVH431A-Q1 | TLVH431A-Q1 | |
| VO Adj(Min)(V) | 1.24 | 1.24 |
| VO Adj(Max)(V) | 18 | 18 |
| Initial Accuracy @ 25/deg C(%) | 1 | 0.5 |
| Min Iz for Regulation(uA) | 80 | 80 |
| Iout/Iz(Max)(mA) | 80 | 80 |
| Pin/Package | 5SOT-23 | 5SOT-23 |
| Approx. Price (US$) | 0.35 | 1ku | 0.48 | 1ku |
| Operating Temperature Range(°C) | -40 to 125 | -40 to 125 |
| Rating | Automotive | Automotive |
| 器件 | 状态 | 温度 (oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| TLVH431AQDBVRQ1 | ACTIVE | -40 to 125 | 0.35 | 1ku | SOT-23 (DBV) | 5 | 3000 | VOOQ |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| TLVH431AQDBVRQ1 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TLVH431AQDBVRQ1 |
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