Overview
The TL431LIAIDBZR is a three-terminal adjustable shunt regulator produced by Texas Instruments. This device is part of the TL431 family, known for its high precision and adjustable output voltage. The TL431LIAIDBZR offers a reference voltage range between 2.495 V and 36 V, which can be set using two external resistors. It is designed to provide thermal stability over a wide temperature range, making it suitable for various applications including automotive, commercial, and military environments.
Key Specifications
| Parameter | Value |
|---|---|
| Reference Voltage Tolerance at 25°C | 1% (A Grade), 0.5% (B Grade) |
| Minimum Typical Output Voltage | 2.495 V |
| Adjustable Output Voltage Range | 2.495 V to 36 V |
| Temperature Range | −40°C to +125°C |
| Maximum Temperature Drift | 10 mV (C Temp), 17 mV (I Temp), 27 mV (Q Temp) |
| Typical Output Impedance | 0.3 Ω |
| Sink-Current Capability | 1 mA (min), 15 mA (max) |
| Reference Input Current (IREF) | 0.4 µA (max) |
| Package | SOT-23 |
Key Features
- Adjustable output voltage from 2.495 V to 36 V using two external resistors.
- High precision with reference voltage tolerances of 1% (A Grade) and 0.5% (B Grade) at 25°C.
- Low output drift versus temperature, ensuring good stability over the entire temperature range.
- Typical output impedance of 0.3 Ω.
- Sink-current capability of 1 mA (min) and 15 mA (max).
- Low reference input current (IREF) of 0.4 µA (max).
- Active output circuitry with a sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
Applications
- Onboard regulation in various electronic systems.
- Adjustable power supplies and switching power supplies.
- Automotive, commercial, and military applications due to its wide temperature range and thermal stability.
- Replacement for Zener diodes in many circuits.
Q & A
- What is the adjustable output voltage range of the TL431LIAIDBZR?
The adjustable output voltage range is from 2.495 V to 36 V. - What are the reference voltage tolerances for the TL431LIAIDBZR?
The reference voltage tolerances are 1% (A Grade) and 0.5% (B Grade) at 25°C. - What is the typical output impedance of the TL431LIAIDBZR?
The typical output impedance is 0.3 Ω. - What is the sink-current capability of the TL431LIAIDBZR?
The sink-current capability is 1 mA (min) and 15 mA (max). - What is the reference input current (IREF) of the TL431LIAIDBZR?
The reference input current (IREF) is 0.4 µA (max). - In what temperature range can the TL431LIAIDBZR operate?
The TL431LIAIDBZR can operate from −40°C to +125°C. - What package type is the TL431LIAIDBZR available in?
The TL431LIAIDBZR is available in the SOT-23 package. - What are some common applications of the TL431LIAIDBZR?
Common applications include onboard regulation, adjustable power supplies, switching power supplies, and replacement for Zener diodes in various electronic systems. - Is the TL431LIAIDBZR suitable for automotive applications?
Yes, it is suitable for automotive applications due to its wide temperature range and thermal stability. - What is the maximum temperature drift of the TL431LIAIDBZR?
The maximum temperature drift is 10 mV (C Temp), 17 mV (I Temp), and 27 mV (Q Temp).
