Overview
The TL431BQLPR is an adjustable precision shunt regulator produced by Texas Instruments. This device is part of the TL431 series, known for its high accuracy and stability over a wide temperature range. The TL431BQLPR is particularly useful in applications requiring a precise and adjustable voltage reference, making it a versatile component in various electronic systems.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Texas Instruments |
| MPN | TL431BQLPR |
| Case/Package | SOT-23 |
| Number of Pins | 3 |
| Mount | Surface Mount |
| Max Output Current | 100mA |
| Min Input Voltage | 2.495V |
| Max Input Voltage | 37V |
| Max Output Voltage | 36V |
| Tolerance | 0.5% (B grade) |
| Temperature Coefficient | 34ppm/°C |
| Cathode Current | 700µA |
| Lifecycle Status | Production |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Number of Channels | 1 |
| Output Voltage | 2.5V to 36V (adjustable) |
| Packaging | Tape & Reel |
| Reference Type | Adjustable |
| RoHS Compliance | Yes |
Key Features
- Adjustable Output Voltage: The output voltage can be set to any value between 2.5V and 36V using two external resistors.
- High Accuracy: The TL431BQLPR has a voltage tolerance of 0.5% at 25°C for the B grade.
- Low Output Noise: The device features low output noise, making it suitable for applications requiring stable voltage references.
- Low Output Impedance: Typical output impedance is 0.2Ω, ensuring minimal voltage drop.
- Sink-Current Capability: The device can sink current from 1mA to 100mA.
- Wide Operating Temperature Range: Operates from -40°C to 125°C, making it suitable for various environmental conditions.
- RoHS Compliance: The TL431BQLPR is lead-free and RoHS compliant.
Applications
- Power Supplies: Used in adjustable power supplies and switching power supplies for precise voltage regulation.
- Industrial Systems: Suitable for industrial applications requiring stable voltage references.
- Automotive Systems: AEC-Q100 qualified, making it suitable for automotive applications.
- On-Board Regulation: Can replace Zener diodes in many on-board regulation applications due to its sharp turn-on characteristic.
Q & A
- What is the maximum output current of the TL431BQLPR?
The maximum output current is 100mA.
- What is the operating temperature range of the TL431BQLPR?
The device operates from -40°C to 125°C.
- How is the output voltage of the TL431BQLPR adjusted?
The output voltage can be adjusted using two external resistors to any value between 2.5V and 36V.
- What is the typical output impedance of the TL431BQLPR?
The typical output impedance is 0.2Ω.
- Is the TL431BQLPR RoHS compliant?
Yes, the TL431BQLPR is RoHS compliant and lead-free.
- What are the main applications of the TL431BQLPR?
The main applications include power supplies, industrial systems, automotive systems, and on-board regulation.
- What is the tolerance of the TL431BQLPR at 25°C?
The tolerance is 0.5% for the B grade.
- Can the TL431BQLPR replace Zener diodes in some applications?
Yes, it can replace Zener diodes due to its sharp turn-on characteristic and stable voltage reference.
- What is the package type of the TL431BQLPR?
The package type is SOT-23.
- Is the TL431BQLPR AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified, making it suitable for automotive applications.
