Overview
The TL431MFDT,215 is an adjustable precision shunt regulator produced by Nexperia USA Inc. This three-terminal device is part of the TL431 family and is designed to provide a programmable output voltage range between 2.495 V and 36 V, set by two external resistors. It is widely used in various electronic designs due to its precision and versatility.
Key Specifications
| Type number | Package version | Package name | Size (mm) | Pinning configuration | Temperature range (T amb) (°C) | Reference voltage tolerance (%) | Reference voltage (V) | Maximum output voltage (V KA) | Sink current capability (I K) (mA) |
|---|---|---|---|---|---|---|---|---|---|
| TL431MFDT | SOT23 | SOT23 | 2.9 x 1.3 x 1 | Mirrored | -40 to 125 | 2 | 2.495 | 36 | 100 |
Key Features
- Programmable output voltage up to 36 V using two external resistors.
- Three different reference voltage tolerances: Standard grade (2%), A-Grade (1%), and B-Grade (0.5%).
- Typical temperature drift of 9 mV from 0 °C to 70 °C.
- Low output noise.
- Typical output impedance of 0.2 Ω.
- Sink current capability 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.
Applications
The TL431MFDT,215 is versatile and finds applications across various industries, including:
- Automotive systems for voltage regulation and monitoring.
- Industrial control systems for precision voltage reference.
- Power supplies, especially in Switch Mode Power Supplies (SMPS).
- Consumer electronics for reliable voltage regulation.
- Mobile and wearable devices requiring precise voltage control.
Q & A
- What is the TL431MFDT,215 used for?
The TL431MFDT,215 is used as an adjustable precision shunt regulator, providing a programmable output voltage range between 2.495 V and 36 V.
- What are the different reference voltage tolerances available for the TL431MFDT?
The TL431MFDT is available in three different reference voltage tolerances: Standard grade (2%), A-Grade (1%), and B-Grade (0.5%).
- What is the typical temperature drift of the TL431MFDT?
The typical temperature drift of the TL431MFDT is 9 mV from 0 °C to 70 °C.
- What is the output impedance of the TL431MFDT?
The typical output impedance of the TL431MFDT is 0.2 Ω.
- What is the sink current capability of the TL431MFDT?
The sink current capability of the TL431MFDT ranges from 1 mA to 100 mA.
- Is the TL431MFDT AEC-Q100 qualified?
Yes, the TL431MFDT is AEC-Q100 qualified (grade 1) for automotive applications.
- What package type does the TL431MFDT come in?
The TL431MFDT comes in the SOT23 package.
- What is the temperature range for the TL431MFDT?
The TL431MFDT operates over a temperature range of -40 °C to 125 °C.
- Can the TL431MFDT be used in SMPS applications?
Yes, the TL431MFDT is suitable for use in Switch Mode Power Supply (SMPS) applications due to its isolated feedback loop.
- Where can I purchase the TL431MFDT?
The TL431MFDT can be purchased from various distributors, including Nexperia's official distributors and online electronics retailers.
