Overview
The TL431BILPR is a three-terminal adjustable precision shunt regulator produced by Texas Instruments. This device is part of the TL431 family, known for its thermal stability across various temperature ranges, making it suitable for automotive, commercial, and military applications. The TL431BILPR offers adjustable output voltage, low output noise, and a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) | % |
| Adjustable Output Voltage | Vref to 36 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Typical Temperature Drift | 6 mV (C temp), 14 mV (I temp, Q temp) | mV |
| Output Impedance | 0.2 Ω (typical) | Ω |
| Sink-Current Capability | 1 mA to 100 mA | mA |
| Package Type | TO-92-3 (TO-226AA) | - |
| Number of Pins | 3 | - |
| RoHS Compliance | Yes | - |
Key Features
- Adjustable output voltage between Vref (approximately 2.5 V) and 36 V using two external resistors.
- Low output noise and typical output impedance of 0.2 Ω.
- Sink-current capability ranging from 1 mA to 100 mA.
- Sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
- Low output drift versus temperature, ensuring good stability over the entire temperature range.
- Available in three grades with initial tolerances of 0.5%, 1%, and 2% at 25°C.
Applications
- On-board regulation and adjustable power supplies.
- Switching power supplies.
- Automotive, commercial, and military applications due to its specified thermal stability.
- Replacement for Zener diodes in various circuits.
Q & A
- What is the TL431BILPR?
The TL431BILPR is a three-terminal adjustable precision shunt regulator produced by Texas Instruments.
- What is the adjustable output voltage range of the TL431BILPR?
The output voltage can be adjusted between Vref (approximately 2.5 V) and 36 V using two external resistors.
- What are the operating temperature ranges for the TL431BILPR?
The device operates from -40°C to 125°C.
- What is the typical output impedance of the TL431BILPR?
The typical output impedance is 0.2 Ω.
- What is the sink-current capability of the TL431BILPR?
The sink-current capability ranges from 1 mA to 100 mA.
- Is the TL431BILPR RoHS compliant?
Yes, the TL431BILPR is RoHS compliant.
- What are the typical applications of the TL431BILPR?
It is used in on-board regulation, adjustable power supplies, switching power supplies, and as a replacement for Zener diodes.
- What are the different grades of the TL431BILPR based on initial tolerance?
The device is available in three grades with initial tolerances of 0.5%, 1%, and 2% at 25°C.
- How does the TL431BILPR handle temperature drift?
The device has low output drift versus temperature, ensuring good stability over the entire temperature range.
- What package type is the TL431BILPR available in?
The TL431BILPR is available in the TO-92-3 (TO-226AA) package type.
