Overview
The TL431ACDBVRG4 is a precision programmable reference voltage regulator produced by Texas Instruments. This three-terminal adjustable shunt regulator is known for its high thermal stability and adjustable output voltage, making it versatile for various applications. The device is part of the TL431 series, which is characterized by its low output noise and high sink-current capability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Voltage (Vref) | 2440 | 2495 | 2550 | mV |
| Reference Voltage Tolerance at 25°C | - | - | 0.5% (B Grade), 1% (A Grade), 2% (Standard Grade) | % |
| Adjustable Output Voltage | 2.5 | - | 36 | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Typical Temperature Drift | - | 6 mV (C Temp), 14 mV (I Temp, Q Temp) | - | mV |
| Output Impedance | - | 0.2 | - | Ω |
| Sink-Current Capability | 1 | - | 100 | mA |
| Package Type | - | - | SOT-23-5 | - |
Key Features
- High thermal stability over a wide temperature range (-40°C to 125°C)
- Adjustable output voltage from 2.5 V to 36 V
- Low output noise and high sink-current capability (1 mA to 100 mA)
- Typical output impedance of 0.2 Ω
- Reference voltage tolerance at 25°C: 0.5% (B Grade), 1% (A Grade), 2% (Standard Grade)
- Low temperature drift: 6 mV (C Temp), 14 mV (I Temp, Q Temp)
Applications
- Rack server power
- Industrial AC/DC power supplies
- AC inverter and variable frequency (VF) drives
- Servo drive control modules
- Notebook PC power adapter designs
Q & A
- What is the TL431ACDBVRG4?
The TL431ACDBVRG4 is a precision programmable reference voltage regulator produced by Texas Instruments.
- What is the adjustable output voltage range of the TL431ACDBVRG4?
The adjustable output voltage range is from 2.5 V to 36 V.
- What are the operating temperature ranges for the TL431ACDBVRG4?
The device operates from -40°C to 125°C.
- What is the typical temperature drift of the TL431ACDBVRG4?
The typical temperature drift is 6 mV (C Temp) and 14 mV (I Temp, Q Temp).
- What is the sink-current capability of the TL431ACDBVRG4?
The sink-current capability ranges from 1 mA to 100 mA.
- What is the typical output impedance of the TL431ACDBVRG4?
The typical output impedance is 0.2 Ω.
- What are some common applications of the TL431ACDBVRG4?
Common applications include rack server power, industrial AC/DC power supplies, AC inverter and VF drives, servo drive control modules, and notebook PC power adapter designs.
- What is the package type of the TL431ACDBVRG4?
The package type is SOT-23-5.
- What is the reference voltage tolerance at 25°C for the TL431ACDBVRG4?
The reference voltage tolerance at 25°C is 0.5% (B Grade), 1% (A Grade), and 2% (Standard Grade).
- Does the TL431ACDBVRG4 have low output noise?
Yes, the TL431ACDBVRG4 is known for its low output noise.
