The TLVH431 and TLVH432 are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. 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 and TLVH432 are ideal voltage references in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 Ohm. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
| TLVH431 | TLVH431A | TLVH431B | |
| VO Adj(Min)(V) | 1.24 | 1.24 | 1.24 |
| VO Adj(Max)(V) | 18 | 18 | 18 |
| Initial Accuracy @ 25/deg C(%) | 1.5 | 1 | 0.5 |
| Min Iz for Regulation(uA) | 80 | 80 | 80 |
| Iout/Iz(Max)(mA) | 80 | 80 | 80 |
| Pin/Package | 3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 6SC70 | 3SOT-89, 5SOT-23, 6SC70, 3TO-92, 3SOT-23 | 3SOT-23, 3SOT-89, 6SC70, 3TO-92, 5SOT-23 |
| Approx. Price (US$) | 0.27 | 1ku | 0.31 | 1ku | 0.41 | 1ku |
| Operating Temperature Range(°C) | -40 to 125,-40 to 85,0 to 70 | -40 to 125,0 to 70,-40 to 85 | -40 to 125,0 to 70,-40 to 85 |
| Rating | Catalog | Catalog | Catalog |
| 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 |
| TLVH431CDBVR | ACTIVE | 0 to 70 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431CDBVRE4 | ACTIVE | 0 to 70 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431CDBVRG4 | ACTIVE | 0 to 70 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431CDBVT | ACTIVE | 0 to 70 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431CDBVTE4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431CDBVTG4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431CDBZR | ACTIVE | 0 to 70 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431CDBZRG4 | ACTIVE | 0 to 70 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431CDBZT | ACTIVE | 0 to 70 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431CDBZTG4 | ACTIVE | 0 to 70 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431CDCKR | ACTIVE | 0 to 70 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431CDCKRE4 | ACTIVE | 0 to 70 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431CDCKRG4 | ACTIVE | 0 to 70 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431CDCKT | ACTIVE | 0 to 70 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431CDCKTE4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431CDCKTG4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431CLP | ACTIVE | 0 to 70 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431CLPE3 | ACTIVE | 0 to 70 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431CLPR | ACTIVE | 0 to 70 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431CLPRE3 | ACTIVE | 0 to 70 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431CPK | ACTIVE | 0 to 70 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
| TLVH431CPKG3 | ACTIVE | 0 to 70 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
| TLVH431IDBVR | ACTIVE | -40 to 85 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431IDBVRE4 | ACTIVE | -40 to 85 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431IDBVRG4 | ACTIVE | -40 to 85 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431IDBVT | ACTIVE | -40 to 85 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431IDBVTE4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431IDBVTG4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431IDBZR | ACTIVE | -40 to 85 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431IDBZRG4 | ACTIVE | -40 to 85 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431IDBZT | ACTIVE | -40 to 85 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431IDBZTG4 | ACTIVE | -40 to 85 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431IDCKR | ACTIVE | -40 to 85 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431IDCKRE4 | ACTIVE | -40 to 85 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431IDCKRG4 | ACTIVE | -40 to 85 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431IDCKT | ACTIVE | -40 to 85 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431IDCKTE4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431IDCKTG4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431ILP | ACTIVE | -40 to 85 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431ILPE3 | ACTIVE | -40 to 85 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431ILPR | ACTIVE | -40 to 85 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431ILPRE3 | ACTIVE | -40 to 85 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431IPK | ACTIVE | -40 to 85 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
| TLVH431IPKG3 | ACTIVE | -40 to 85 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
| TLVH431QDBVR | ACTIVE | -40 to 125 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431QDBVRE4 | ACTIVE | -40 to 125 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431QDBVRG4 | ACTIVE | -40 to 125 | 0.27 | 1ku | SOT-23 (DBV) | 5 | 3000 | LARGE T&R | Y3UU |
| TLVH431QDBVT | ACTIVE | -40 to 125 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431QDBVTE4 | ACTIVE | -40 to 125 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431QDBVTG4 | ACTIVE | -40 to 125 | 0.55 | 1ku | SOT-23 (DBV) | 5 | 250 | SMALL T&R | Y3UU |
| TLVH431QDBZR | ACTIVE | -40 to 125 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431QDBZRG4 | ACTIVE | -40 to 125 | 0.30 | 1ku | SOT-23 (DBZ) | 3 | 3000 | LARGE T&R | (Y3US, Y3UU) |
| TLVH431QDBZT | ACTIVE | -40 to 125 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431QDBZTG4 | ACTIVE | -40 to 125 | 0.60 | 1ku | SOT-23 (DBZ) | 3 | 250 | SMALL T&R | (Y3US, Y3UU) |
| TLVH431QDCKR | ACTIVE | -40 to 125 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431QDCKRE4 | ACTIVE | -40 to 125 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431QDCKRG4 | ACTIVE | -40 to 125 | 0.27 | 1ku | SC70 (DCK) | 6 | 3000 | LARGE T&R | YUU |
| TLVH431QDCKT | ACTIVE | -40 to 125 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431QDCKTE4 | ACTIVE | -40 to 125 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431QDCKTG4 | ACTIVE | -40 to 125 | 0.55 | 1ku | SC70 (DCK) | 6 | 250 | SMALL T&R | YUU |
| TLVH431QLP | ACTIVE | -40 to 125 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431QLPE3 | ACTIVE | -40 to 125 | 0.27 | 1ku | TO-92 (LP) | 3 | 1000 | BULK | ZA431 |
| TLVH431QLPR | ACTIVE | -40 to 125 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431QLPRE3 | ACTIVE | -40 to 125 | 0.27 | 1ku | TO-92 (LP) | 3 | 2000 | LARGE T&R | ZA431 |
| TLVH431QPK | ACTIVE | -40 to 125 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
| TLVH431QPKG3 | ACTIVE | -40 to 125 | 0.27 | 1ku | SOT-89 (PK) | 3 | 1000 | LARGE T&R | W4 |
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