Overview
The TLVH431AQDBZTG4 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. It is designed to provide stable voltage regulation across a wide range of temperatures and applications. The TLVH431AQDBZTG4 is particularly useful in scenarios where precise voltage control is necessary, such as in on-board regulation, adjustable power supplies, and switching power supplies.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOT-23 (DBZ), 3 pins |
| Operating Temperature Range | -40°C to 125°C |
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) |
| Adjustable Output Voltage | Vref (approximately 2.5V) to 36V |
| Typical Output Impedance | 0.2Ω |
| Sink-Current Capability | 1mA to 100mA |
| Typical Temperature Drift | 6mV (C temp), 14mV (I temp, Q temp) |
Key Features
- Active output circuitry with a sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
- Adjustable output voltage settable between Vref (approximately 2.5V) and 36V using two external resistors.
- Low output noise and typical output impedance of 0.2Ω.
- Sink-current capability ranging from 1mA to 100mA.
- Operation over a wide temperature range from -40°C to 125°C.
- Available in three grades with different initial tolerances: 0.5% (B grade), 1% (A grade), and 2% (Standard grade).
Applications
- On-board voltage regulation.
- Adjustable power supplies.
- Switching power supplies.
- Automotive, commercial, and military applications due to its specified thermal stability over various temperature ranges.
Q & A
- What is the TLVH431AQDBZTG4 used for? The TLVH431AQDBZTG4 is used for precise voltage regulation in applications such as on-board regulation, adjustable power supplies, and switching power supplies.
- What is the adjustable output voltage range of the TLVH431AQDBZTG4? The output voltage can be set to any value between Vref (approximately 2.5V) and 36V using two external resistors.
- What are the different grades of the TLVH431AQDBZTG4 based on reference voltage tolerance? The device is available in three grades: 0.5% (B grade), 1% (A grade), and 2% (Standard grade) at 25°C.
- What is the typical output impedance of the TLVH431AQDBZTG4? The typical output impedance is 0.2Ω.
- What is the sink-current capability of the TLVH431AQDBZTG4? The sink-current capability ranges from 1mA to 100mA.
- What is the operating temperature range of the TLVH431AQDBZTG4? The device operates from -40°C to 125°C.
- Why is the TLVH431AQDBZTG4 a good replacement for Zener diodes? It has active output circuitry with a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications.
- What are the typical temperature drift values for the TLVH431AQDBZTG4? The typical temperature drift values are 6mV (C temp) and 14mV (I temp, Q temp).
- What package type is the TLVH431AQDBZTG4 available in? The device is available in the SOT-23 (DBZ) package with 3 pins.
- What are some common applications of the TLVH431AQDBZTG4 in different industries? It is used in automotive, commercial, and military applications due to its specified thermal stability over various temperature ranges.
