Overview
The TL431CZ-AP, produced by STMicroelectronics, is an adjustable shunt voltage reference with guaranteed temperature stability over its entire operating temperature range. This device is part of the TL431 and TL432 series, known for their versatility and reliability in various applications. The TL431CZ-AP can be used to set an output voltage between 2.5 and 36 V using two external resistors, making it highly adaptable for different circuit designs. It is particularly suited for automotive, industrial, and power supply applications due to its extended temperature range and robust performance characteristics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Input Voltage (Vref) | 2.44 - 2.495 | V |
| Adjustable Output Voltage | 2.5 - 36 | V |
| Sink Current Capability | 1 - 100 | mA |
| Typical Output Impedance | 0.22 | Ω |
| Voltage Precision | 0.5% (TL431B), 1%, 2% | % |
| Operating Temperature Range | -40 to +125 | °C |
| Cathode to Anode Voltage (VKA) | 37 | V |
| Continuous Cathode Current Range | -100 to +150 | mA |
| Thermal Resistance Junction to Case | 57 - 136 | °C/W |
| Thermal Resistance Junction to Ambient | 200 - 248 | °C/W |
Key Features
- AEC-Q100 qualified for automotive applications
- Adjustable output voltage: 2.5 to 36 V using two external resistors
- Sink current capability: 1 to 100 mA
- Typical output impedance: 0.22 Ω
- Voltage precision options: 0.5% (TL431B), 1%, and 2%
- Extended automotive temperature range: -40 °C to +125 °C
Applications
The TL431CZ-AP is suitable for a variety of applications, including:
- Power supply systems: For voltage regulation and reference purposes.
- Industrial applications: Where stable voltage references are crucial.
- Automotive systems: Due to its AEC-Q100 qualification and extended temperature range.
Q & A
- What is the adjustable output voltage range of the TL431CZ-AP? The output voltage can be set to any value between 2.5 and 36 V using two external resistors.
- What is the sink current capability of the TL431CZ-AP? The device can sink current in the range of 1 to 100 mA.
- What is the typical output impedance of the TL431CZ-AP? The typical output impedance is 0.22 Ω.
- What are the voltage precision options for the TL431CZ-AP? The voltage precision options are 0.5% (TL431B), 1%, and 2%.
- What is the operating temperature range for the TL431CZ-AP? The operating temperature range is -40 °C to +125 °C.
- Is the TL431CZ-AP AEC-Q100 qualified? Yes, the TL431CZ-AP is AEC-Q100 qualified, making it suitable for automotive applications.
- What types of applications is the TL431CZ-AP suitable for? It is suitable for power supply systems, industrial applications, and automotive systems.
- What is the maximum cathode to anode voltage (VKA) for the TL431CZ-AP? The maximum VKA is 37 V.
- What is the thermal resistance junction to case for the TL431CZ-AP? The thermal resistance junction to case varies by package but ranges from 57 to 136 °C/W.
- What is the storage temperature range for the TL431CZ-AP? The storage temperature range is -65 to +150 °C.
