Overview
The TL431ACDBVTG4 is a versatile and reliable voltage reference and shunt regulator produced by Texas Instruments. This three-terminal adjustable shunt regulator is designed to offer specified thermal stability over a wide range of temperatures, making it suitable for automotive, commercial, and military applications. The device features an adjustable output voltage that can be set to any value between approximately 2.5V and 36V using two external resistors. Its active output circuitry provides a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | ±1% | - |
| Adjustable Output Voltage | 2.495V to 36V | V |
| Operating Temperature Range | −40°C to 125°C | °C |
| Typical Output Impedance | 0.2Ω | Ω |
| Sink-Current Capability | 1mA to 100mA | mA |
| Package/Case | SOT-23-5, SC-74A, SOT-753 | - |
| Mounting Type | Surface Mount | - |
| Cathode Current | 600 µA | µA |
Key Features
- Adjustable output voltage from approximately 2.5V to 36V using two external resistors.
- Reference voltage tolerance at 25°C: ±1% (A grade), ±0.5% (B grade), and ±2% (Standard grade).
- Operation from −40°C to 125°C, ensuring stability over a wide temperature range.
- Typical temperature drift: 6mV (C temp) and 14mV (I temp, Q temp).
- Low output noise and typical output impedance of 0.2Ω.
- Sink-current capability: 1mA to 100mA.
- Active output circuitry with a sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
Applications
- On-board regulation.
- Adjustable power supplies.
- Switching power supplies.
- Voltage regulation in automotive, commercial, and military systems.
Q & A
- What is the TL431ACDBVTG4 used for?
The TL431ACDBVTG4 is used as a voltage reference and shunt regulator in various applications, including on-board regulation, adjustable power supplies, and switching power supplies.
- What is the adjustable output voltage range of the TL431ACDBVTG4?
The output voltage can be set to any value between approximately 2.5V and 36V using two external resistors.
- What are the operating temperature ranges for the TL431ACDBVTG4?
The device operates from −40°C to 125°C.
- What is the typical output impedance of the TL431ACDBVTG4?
The typical output impedance is 0.2Ω.
- What are the sink-current capabilities of the TL431ACDBVTG4?
The device can sink currents from 1mA to 100mA.
- What are the package options for the TL431ACDBVTG4?
The device is available in SOT-23-5, SC-74A, and SOT-753 packages.
- Is the TL431ACDBVTG4 suitable for high-temperature applications?
Yes, it operates from −40°C to 125°C, making it suitable for high-temperature applications.
- What is the reference voltage tolerance of the TL431ACDBVTG4?
The reference voltage tolerance at 25°C is ±1% for the A grade.
- Can the TL431ACDBVTG4 replace Zener diodes in some applications?
Yes, its active output circuitry provides a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications.
- Is the TL431ACDBVTG4 RoHS compliant?
Yes, the TL431ACDBVTG4 is lead-free and RoHS compliant.
