Overview
The TL431ACDBVT is an adjustable precision shunt regulator produced by Texas Instruments. This device is part of the TL431 series, known for its specified thermal stability over a wide range of temperatures. The TL431ACDBVT allows the output voltage to be set to any value between approximately 2.5V (Vref) and 36V using two external resistors. It features active output circuitry that provides a very sharp turn-on characteristic, making it an excellent replacement for Zener diodes in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage (Vref) | 2.495V | V |
| Reference Voltage Tolerance at 25°C | 1% (A grade) | % |
| Adjustable Output Voltage Range | 2.495V to 36V | V |
| Typical Output Impedance | 0.2Ω | Ω |
| Sink-Current Capability | 1mA to 100mA | mA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SOT-23 | - |
| Number of Pins | 5 | - |
| RoHS Compliance | Yes | - |
Key Features
- Adjustable output voltage from approximately 2.5V to 36V using two external resistors.
- Typical output impedance of 0.2Ω.
- Sink-current capability from 1mA to 100mA.
- Low output noise.
- Operation from -40°C to 125°C, ensuring good stability over the entire temperature range.
- Active output circuitry providing a very sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
- Available in three grades with initial tolerances of 0.5%, 1%, and 2% at 25°C.
Applications
- Power Management
- Automotive
- Aerospace
- Defense and Military
- Commercial
- On-board regulation
- Adjustable power supplies
- Switching power supplies
Q & A
- What is the TL431ACDBVT?
The TL431ACDBVT is an adjustable precision shunt regulator produced by Texas Instruments.
- What is the adjustable output voltage range of the TL431ACDBVT?
The output voltage can be set to any value between approximately 2.5V and 36V using two external resistors.
- What is the typical output impedance of the TL431ACDBVT?
The typical output impedance is 0.2Ω.
- What is the sink-current capability of the TL431ACDBVT?
The sink-current capability ranges from 1mA to 100mA.
- What is the operating temperature range of the TL431ACDBVT?
The device operates from -40°C to 125°C.
- What package type is the TL431ACDBVT available in?
The TL431ACDBVT is available in the SOT-23 package type.
- Is the TL431ACDBVT RoHS compliant?
Yes, the TL431ACDBVT is RoHS compliant.
- What are some common applications of the TL431ACDBVT?
Common applications include power management, automotive, aerospace, defense and military, commercial, on-board regulation, adjustable power supplies, and switching power supplies.
- Can the TL431ACDBVT replace Zener diodes in some applications?
Yes, the TL431ACDBVT can replace Zener diodes due to its active output circuitry and sharp turn-on characteristic.
- What are the different grades of the TL431ACDBVT based on initial tolerance?
The TL431ACDBVT is available in three grades with initial tolerances of 0.5%, 1%, and 2% at 25°C.
