Packaging information
| Package | Pins SOT-23 (DBV) | 5 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TLV431B-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: -40°C to 125°C ambient operating temperature range
- Low-voltage operation, VREF = 1.24V
- Adjustable output voltage, VO = VREF to 6V
- Reference voltage tolerances at 25°C
- 0.5% for TLV431B
- 1% for TLV431A
- Typical temperature drift
- 11mV (–40°C to 125°C)
- Low operational cathode current, 80µA typical
- 0.25Ω Typical output impedance
- See TLVH431 and TLVH432 for:
- Wider VKA (1.24V to 18V) and IK (80mA)
- Multiple pinouts for SOT-23-3 and SOT-89 packages
Description for the TLV431B-Q1
The TLV431 device is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to 1.24V on stand alone mode or any value between VREF (1.24V) and 6V with two external resistors (see Figure 6-2). These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLV431 device is a voltage reference in isolated feedback circuits designed for 3V to 3.3V switching-mode power supplies. These devices have a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.