Overview
The TL431AQDBVRE4 is a precision programmable reference voltage regulator produced by Texas Instruments. This component is part of the TL431 series, known for its adjustable output voltage and high thermal stability. Introduced in 1978, it has been widely used in various applications requiring stable voltage references. The TL431AQDBVRE4 is packaged in a 5-pin SOT-23 (DBV) package and is RoHS compliant, making it suitable for a range of modern electronic designs.
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 |
| Sink Current Capability | 1 mA to 100 mA | mA |
| Typical Temperature Drift | 14 mV (over the full temperature range) | mV |
| Output Impedance | 0.2 Ω (typical) | Ω |
| Package Type | SOT-23-5 (DBV) | - |
| RoHS Compliance | Yes (2011/65/EU, 2015/863) | - |
Key Features
- Programmable Output Voltage: The TL431AQDBVRE4 allows for adjustable output voltage up to 36V, making it versatile for various applications.
- High Thermal Stability: The device exhibits specified thermal stability over a wide temperature range, ensuring reliable operation in diverse environments.
- Low Output Noise: It features low output noise, which is crucial for applications requiring high signal integrity.
- Low Output Impedance: With a typical output impedance of 0.2 Ω, the device minimizes voltage drops and ensures efficient current handling.
- Sink Current Capability: The component can handle sink currents from 1 mA to 100 mA, catering to a broad range of current requirements.
- AEC-Q100 Qualified: The TL431AQDBVRE4 is AEC-Q100 qualified (grade 1), making it suitable for automotive applications.
Applications
- Rack Server Power: Used in power supply units for rack servers due to its high thermal stability and adjustable output voltage.
- Industrial AC/DC: Employed in industrial AC/DC power supplies where stable voltage references are essential.
- AC Inverter & VF Drives: Utilized in AC inverters and variable frequency drives for their precision and reliability.
- Servo Drive Control Module: Applied in servo drive control modules to ensure accurate and stable voltage references.
- Notebook PC Power Adapter Design: Used in power adapter designs for notebook PCs due to its compact package and high performance.
Q & A
- What is the reference voltage tolerance of the TL431AQDBVRE4 at 25°C?
The reference voltage tolerance is 1% at 25°C.
- What is the adjustable output voltage range of the TL431AQDBVRE4?
The adjustable output voltage range is from 2.495V to 36V.
- What is the operating temperature range of the TL431AQDBVRE4?
The operating temperature range is from -40°C to 125°C.
- What is the sink current capability of the TL431AQDBVRE4?
The sink current capability is from 1 mA to 100 mA.
- What is the typical output impedance of the TL431AQDBVRE4?
The typical output impedance is 0.2 Ω.
- Is the TL431AQDBVRE4 RoHS compliant?
Yes, the TL431AQDBVRE4 is RoHS compliant (2011/65/EU, 2015/863)).
- What package type is the TL431AQDBVRE4 available in?
The TL431AQDBVRE4 is available in a 5-pin SOT-23 (DBV) package).
- Is the TL431AQDBVRE4 AEC-Q100 qualified?
Yes, the TL431AQDBVRE4 is AEC-Q100 qualified (grade 1)).
- What are some common applications of the TL431AQDBVRE4?
Common applications include rack server power, industrial AC/DC power supplies, AC inverters, servo drive control modules, and notebook PC power adapter designs).
- What is the introduction date of the TL431AQDBVRE4?
The TL431 series was introduced on July 1, 1978).
