Texas Instruments TL431AC
The TL431LI / TL432LI are pin-to-pin alternatives to TL431 / TL432. The TL431 and TL432 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors.| Part No. | TL431AC |
|---|---|
| Datasheet | TL431AC Download |
| Manufacturer |  Texas Instruments |
| Description | three-terminal adjustable shunt regulator |
| Buy | Stock & Price |
FEATURES
●1 Reference Voltage Tolerance at 25°C – 0.5% (B Grade) – 1% (A Grade) – 2% (Standard Grade)● Adjustable Output Voltage: Vref to 36 V
● Operation From −40°C to 125°C
● Typical Temperature Drift (TL43xB) – 6 mV (C Temp) – 14 mV (I Temp, Q Temp)
● Low Output Noise
● 0.2-Ω Typical Output Impedance
● Sink-Current Capability: 1 mA to 100 mA 2
APPLICATIONS
● Adjustable Voltage and Current Referencing● Secondary Side Regulation in Flyback SMPSs
● Zener Replacement
● Voltage Monitoring
● Comparator with Integrated Reference Simplified Schematic Input VKA IKA Vref 3
DESCRIPTION
TL43xLI offers better stability, lower temperature drift (VI(dev)), and lower reference current (Iref) for improved system accuracy. These devices have a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.
