Overview
The TL431FDT,215 is an adjustable precision shunt regulator produced by Nexperia USA Inc. This three-terminal device is part of the TL431 family and is known for its versatility and precision in voltage regulation. The TL431FDT allows for an output voltage range between 2.495 V and 36 V, which can be set using two external resistors. This component is widely used in various electronic designs across different industries, including automotive, industrial, power, computing, and consumer electronics.
Key Specifications
| Type number | Package version | Package name | Size (mm) | Pinning configuration | T amb (°C) | V ref tolerance (%) | V ref (V) | V KA (V) | I K (mA) |
|---|---|---|---|---|---|---|---|---|---|
| TL431FDT | SOT23 | SOT23 | 2.9 x 1.3 x 1 | normal | -40 to 125 | 2 | 2.495 | 36 | 100 |
Key Features
- Programmable output voltage up to 36 V using two external resistors.
- Reference voltage tolerance of 2%.
- Low output noise and typical output impedance of 0.2 Ω.
- Sink current capability ranging from 1 mA to 100 mA.
- AEC-Q100 qualified (grade 1) for automotive applications.
- Isolated feedback loop suitable for Switch Mode Power Supply (SMPS) applications.
- Available in SOT23 package with normal pinning configuration.
Applications
The TL431FDT is versatile and finds applications in various industries, including:
- Automotive: For voltage regulation in automotive systems.
- Industrial: In power supplies, voltage regulators, and other industrial control systems.
- Power: In switch-mode power supplies (SMPS) and other power management circuits.
- Computing: In computer power supplies and other computing hardware.
- Consumer Electronics: In a wide range of consumer electronic devices requiring precise voltage regulation.
Q & A
- What is the output voltage range of the TL431FDT?
The output voltage range of the TL431FDT is between 2.495 V and 36 V, set by two external resistors. - What is the reference voltage tolerance of the TL431FDT?
The reference voltage tolerance of the TL431FDT is 2%. - What is the typical output impedance of the TL431FDT?
The typical output impedance of the TL431FDT is 0.2 Ω. - What is the sink current capability of the TL431FDT?
The sink current capability of the TL431FDT ranges from 1 mA to 100 mA. - Is the TL431FDT AEC-Q100 qualified?
Yes, the TL431FDT is AEC-Q100 qualified (grade 1) for automotive applications. - What package is the TL431FDT available in?
The TL431FDT is available in the SOT23 package with normal pinning configuration. - What are the typical applications of the TL431FDT?
The TL431FDT is used in automotive, industrial, power, computing, and consumer electronics for precise voltage regulation. - How does the TL431FDT handle temperature variations?
The TL431FDT operates over a temperature range of -40°C to 125°C. - Can the TL431FDT be used in SMPS applications?
Yes, the TL431FDT has an isolated feedback loop suitable for Switch Mode Power Supply (SMPS) applications. - Where can I purchase the TL431FDT?
The TL431FDT can be purchased from Nexperia's official distributors and various online electronics retailers.
