Overview
The TL431ACZ is an adjustable shunt voltage reference produced by Fairchild Semiconductor, now part of onsemi. This device is known for its high accuracy and stability over a wide temperature range, making it suitable for various applications in power supplies, industrial, and automotive systems. The TL431ACZ offers adjustable output voltage from 2.5 to 36 volts, with a sink current capability of 1 to 100 mA. It is available in several package types, including TO-92, which is the case for the TL431ACZ model.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Reference Input Voltage (Vref) | 2.44 | 2.495 | 2.55 | V |
| Output Voltage Range | 2.5 | - | 36 | V |
| Sink Current Capability | 1 | - | 100 | mA |
| Typical Output Impedance | - | 0.22 | 0.5 | Ω |
| Voltage Precision (at 25°C) | - | - | 1% | - |
| Operating Temperature Range | 0 | - | 70 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
Key Features
- AEC-Q100 qualified for automotive applications.
- Adjustable output voltage from 2.5 to 36 volts using two external resistors.
- Sink current capability of 1 to 100 mA.
- Typical output impedance of 0.22 Ω.
- Voltage precision of 1% at 25°C.
- Low output noise.
- Guaranteed temperature stability over the entire operating temperature range.
Applications
- Power supply systems: Used for voltage regulation and reference in power supplies.
- Industrial applications: Suitable for various industrial control and monitoring systems.
- Automotive systems: Qualified for use in automotive environments with a temperature range of -40°C to +125°C.
Q & A
- What is the TL431ACZ?
The TL431ACZ is an adjustable shunt voltage reference IC produced by Fairchild Semiconductor.
- What is the adjustable output voltage range of the TL431ACZ?
The output voltage can be adjusted from 2.5 to 36 volts.
- What is the sink current capability of the TL431ACZ?
The TL431ACZ can sink current from 1 to 100 mA.
- What is the typical output impedance of the TL431ACZ?
The typical output impedance is 0.22 Ω.
- What is the voltage precision of the TL431ACZ at 25°C?
The voltage precision is 1% at 25°C.
- What are the operating and storage temperature ranges for the TL431ACZ?
The operating temperature range is 0 to 70°C, and the storage temperature range is -65 to 150°C.
- Is the TL431ACZ AEC-Q100 qualified?
Yes, the TL431ACZ is AEC-Q100 qualified for automotive applications.
- What are some common applications of the TL431ACZ?
Common applications include power supply systems, industrial control systems, and automotive systems.
- What package types are available for the TL431ACZ?
The TL431ACZ is available in the TO-92 package among others.
- Is the TL431ACZ still in production?
The TL431ACZ is scheduled for obsolescence and will be discontinued by the manufacturer.
