The TLVH431 and TLVH432 devices 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 7-2). 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 devices 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 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | TLVH431, TLVH432 Low-Voltage Adjustable Precision Shunt Regulators datasheet (Rev. M) | PDF | HTML | 26 Jan 2023 |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 |
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| Gehäuse | Pins | Herunterladen |
|---|---|---|
| SOT-23 (DBV) | 5 | Optionen anzeigen |
| SOT-23 (DBZ) | 3 | Optionen anzeigen |
| SOT-89 (PK) | 3 | Optionen anzeigen |
| SOT-SC70 (DCK) | 6 | Optionen anzeigen |
| TO-92 (LP) | 3 | Optionen anzeigen |
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