Overview
The TL431BMFDT/8VL, produced by Nexperia USA Inc., is a member of the TL431 family of adjustable precision shunt regulators. This three-terminal device is designed to provide a highly stable output voltage that can be set between 2.495 V and 36 V using two external resistors. It is known for its thermal stability over a wide range of temperatures, making it suitable for various automotive and commercial applications.
The TL431BMFDT/8VL features a mirrored pinning configuration and is packaged in a SOT23 package, which is compact and suitable for space-constrained designs. The device is characterized by its low reference voltage tolerance of 0.5% and a high level of precision, making it an excellent choice for on-board regulation, adjustable power supplies, and switching power supplies.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Reference Voltage (Vref) | - | - | - | 2.495 | V |
| Output Voltage Range | - | 2.495 | - | 36 | V |
| Reference Voltage Tolerance | - | - | - | 0.5% | % |
| Cathode-Anode Voltage (VKA) | - | - | - | 37 | V |
| Cathode Current (IK) | - | 1 | - | 100 | mA |
| Reference Current (Iref) | - | 0.05 | - | 10 | mA |
| Total Power Dissipation (Ptot) | Tamb ≤ 25 °C | - | - | 950 | mW |
| Junction Temperature (Tj) | - | - | - | 150 | °C |
| Ambient Temperature (Tamb) | - | -40 | - | 125 | °C |
| Pinning Configuration | - | - | - | Mirrored | - |
| Package | - | - | - | SOT23 | - |
Key Features
- Adjustable Output Voltage: The output voltage can be set to any value between 2.495 V and 36 V using two external resistors.
- High Precision: Features a low reference voltage tolerance of 0.5%, ensuring high accuracy in voltage regulation.
- Thermal Stability: Specified thermal stability over a wide temperature range from -40 °C to 125 °C.
- Compact Package: Available in the SOT23 package, which is ideal for space-constrained designs.
- Low Dynamic Impedance: Typical output impedance of 0.2 Ω, providing a sharp turn-on characteristic.
- Replacement for Zener Diodes: Excellent replacement for Zener diodes in many applications due to its active output circuitry.
Applications
- On-Board Regulation: Suitable for on-board voltage regulation in various electronic systems.
- Adjustable Power Supplies: Used in adjustable power supplies where precise voltage control is necessary.
- Switching Power Supplies: Ideal for switching power supplies due to its high precision and thermal stability.
- Automotive and Industrial Systems: Applicable in automotive and industrial systems where reliability and precision are critical.
- Consumer Electronics: Used in consumer electronics for voltage regulation in power supplies and other circuits.
Q & A
- What is the output voltage range of the TL431BMFDT/8VL?
The output voltage range of the TL431BMFDT/8VL can be set between 2.495 V and 36 V using two external resistors.
- What is the reference voltage tolerance of the TL431BMFDT/8VL?
The reference voltage tolerance of the TL431BMFDT/8VL is 0.5%.
- What is the typical output impedance of the TL431BMFDT/8VL?
The typical output impedance of the TL431BMFDT/8VL is 0.2 Ω.
- What is the operating temperature range of the TL431BMFDT/8VL?
The operating temperature range of the TL431BMFDT/8VL is from -40 °C to 125 °C.
- What package type is the TL431BMFDT/8VL available in?
The TL431BMFDT/8VL is available in the SOT23 package.
- Can the TL431BMFDT/8VL replace Zener diodes in some applications?
Yes, the TL431BMFDT/8VL can replace Zener diodes in many applications due to its active output circuitry and sharp turn-on characteristic.
- What is the maximum cathode-anode voltage (VKA) for the TL431BMFDT/8VL?
The maximum cathode-anode voltage (VKA) for the TL431BMFDT/8VL is 37 V.
- What is the maximum cathode current (IK) for the TL431BMFDT/8VL?
The maximum cathode current (IK) for the TL431BMFDT/8VL is 100 mA.
- What is the total power dissipation (Ptot) for the TL431BMFDT/8VL at Tamb ≤ 25 °C?
The total power dissipation (Ptot) for the TL431BMFDT/8VL at Tamb ≤ 25 °C is 950 mW.
- What are some common applications of the TL431BMFDT/8VL?
The TL431BMFDT/8VL is commonly used in on-board regulation, adjustable power supplies, switching power supplies, automotive systems, and consumer electronics.
