Overview
The TL431ACPW is a 3-terminal adjustable precision shunt regulator produced by Texas Instruments. This device is part of the TL431 series, known for its thermal stability over a wide range of temperature conditions, including automotive, commercial, and military environments. The TL431ACPW is characterized by its ability to set the output voltage to any value between approximately 2.5 V and 36 V using two external resistors, making it highly versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference 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 | - | 0.2 | - | Ω |
| Operating Temperature Range | 0 | - | 70 | °C |
| Reference Voltage Tolerance at 25°C | - | 1% (A Grade) | - | - |
| Package Type | - | TSSOP (PW) | - | - |
Key Features
- Adjustable Output Voltage: The output voltage can be set to any value between approximately 2.5 V and 36 V using two external resistors.
- Low Output Impedance: Typical output impedance of 0.2 Ω, ensuring minimal voltage drop across the device.
- Sink Current Capability: Can sink current from 1 mA to 100 mA, making it suitable for a variety of applications.
- Low Output Noise: Features low output noise, enhancing the stability and reliability of the voltage reference.
- Thermal Stability: Guaranteed thermal stability over a wide temperature range, including automotive, commercial, and military environments.
- Sharp Turn-On Characteristic: Active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement for Zener diodes).
Applications
- On-Board Regulation: Used for regulating voltage within electronic circuits on the same board).
- Adjustable Power Supplies: Ideal for applications requiring adjustable output voltages in power supplies).
- Switching Power Supplies: Suitable for use in switching power supplies due to its low output impedance and sharp turn-on characteristic).
- Automotive and Industrial Systems: AEC-Q100 qualified, making it suitable for automotive and industrial applications where reliability and thermal stability are crucial).
Q & A
- What is the TL431ACPW?
The TL431ACPW is a 3-terminal adjustable precision shunt regulator produced by Texas Instruments.
- What is the adjustable output voltage range of the TL431ACPW?
The output voltage can be set to any value between approximately 2.5 V and 36 V using two external resistors.
- What is the typical output impedance of the TL431ACPW?
The typical output impedance is 0.2 Ω.
- What is the sink current capability of the TL431ACPW?
The device can sink current from 1 mA to 100 mA.
- What are the operating temperature ranges for the TL431ACPW?
The operating temperature range is from 0°C to 70°C.
- What are some common applications of the TL431ACPW?
Common applications include on-board regulation, adjustable power supplies, switching power supplies, and automotive and industrial systems.
- Is the TL431ACPW suitable for automotive applications?
- What package type is the TL431ACPW available in?
The TL431ACPW is available in a TSSOP (PW) package.
- What is the reference voltage tolerance at 25°C for the TL431ACPW?
The reference voltage tolerance at 25°C is 1% for the A Grade.
- Does the TL431ACPW have low output noise?
