Overview
The TL431IDBVRG4 is an adjustable precision shunt regulator produced by Texas Instruments. It belongs to the TL431 family of three-terminal shunt regulators, known for their high precision and versatility. This component is widely used in various electronic systems to regulate voltage and provide stable reference voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage Range | Vref to 36 V (set by external resistors) |
| Reference Voltage Tolerance at 25°C | 2% (Standard Grade), 1% (A-Grade), 0.5% (B-Grade) |
| Typical Temperature Drift | 6 mV (from 0°C to 70°C) |
| Output Impedance | Typical 0.2 Ω |
| Sink Current Capability | 1 mA to 100 mA |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | SOT-23-3 (DBZ) |
| AEC-Q100 Qualification | Grade 1 |
Key Features
- Programmable output voltage up to 36 V using external resistors.
- Low output noise and high stability.
- Low typical output impedance of 0.2 Ω.
- Sink current capability from 1 mA to 100 mA.
- AEC-Q100 qualified (Grade 1) for automotive applications.
- Enhanced stability area with low load capacity requirement.
- Available in different grades with varying reference voltage tolerances.
Applications
- Shunt regulator in power supply systems.
- Precision current limiter and constant current sink.
- Isolated feedback loop for Switch Mode Power Supplies (SMPS).
- Automotive and industrial control systems.
- Linear and switching power supply applications.
Q & A
- What is the TL431IDBVRG4 used for?
The TL431IDBVRG4 is used as a shunt regulator, precision current limiter, and precision constant current sink in various electronic systems. - What is the output voltage range of the TL431IDBVRG4?
The output voltage range is from Vref to 36 V, set by two external resistors. - What are the reference voltage tolerances available for the TL431IDBVRG4?
The reference voltage tolerances are 2% (Standard Grade), 1% (A-Grade), and 0.5% (B-Grade) at 25°C. - What is the typical temperature drift of the TL431IDBVRG4?
The typical temperature drift is 6 mV from 0°C to 70°C. - What is the sink current capability of the TL431IDBVRG4?
The sink current capability ranges from 1 mA to 100 mA. - Is the TL431IDBVRG4 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified (Grade 1) for automotive applications. - What package type is the TL431IDBVRG4 available in?
The TL431IDBVRG4 is available in the SOT-23-3 (DBZ) package. - What are some common applications of the TL431IDBVRG4?
Common applications include shunt regulators, precision current limiters, and isolated feedback loops in SMPS, as well as automotive and industrial control systems. - How does the TL431IDBVRG4 handle electromagnetic interference (EMI)?
The TL431xFDT types offer enhanced EMI ruggedness, making them suitable for SMPS applications. - What is the operating temperature range of the TL431IDBVRG4?
The operating temperature range is from -40°C to 85°C.
