Overview
The TL431CLPREG is a programmable precision reference voltage regulator produced by onsemi. This device is part of the TL431 series, known for its adjustable output voltage and high thermal stability. The TL431CLPREG operates as a shunt regulator and can be used in various applications requiring a precise and adjustable voltage reference.
It features a three-terminal configuration with an anode, cathode, and reference pin, allowing for easy integration into a wide range of circuits. The device is available in a TO-92 (TO-226) package, making it suitable for applications where space is a consideration.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Reference Voltage | Vref | 2.44 | 2.495 | 2.55 | mV |
| Cathode to Anode Voltage | VKA | - | - | 37 | V |
| Cathode Current Range | IK | -100 | - | 150 | mA |
| Reference Input Current Range | Iref | -0.05 | - | 10 | mA |
| Operating Junction Temperature | TJ | - | - | 150 | °C |
| Operating Ambient Temperature Range | TA | -40 | - | 85 | °C |
| Dynamic Impedance | |ZKA| | 0.22 | 0.5 | - | Ω |
Key Features
- Programmable Output Voltage: Adjustable output voltage up to 36 V, making it versatile for various applications.
- High Thermal Stability: Specified thermal stability over a wide operating temperature range, ensuring consistent performance.
- Low Dynamic Output Impedance: Typical dynamic impedance of 0.22 Ω, which helps in maintaining a stable output voltage.
- Sink Current Capability: Can sink currents from 1 mA to 100 mA, making it suitable for a range of load conditions.
- Low Output Noise: Features low output noise, which is crucial for applications requiring high precision and stability.
- Automotive and Industrial Compliance: Available with NCV and SCV prefixes for automotive and other applications requiring unique site and control change requirements, and is AEC-Q100 qualified.
- Environmental Compliance: Pb-free, halogen-free/BFR-free, and RoHS compliant).
Applications
- Rack Server Power: Used in power supply designs for rack servers due to its high precision and thermal stability).
- Industrial AC/DC Power Supplies: Suitable for industrial AC/DC power supplies where adjustable and precise voltage references are needed).
- AC Inverter & VF Drives: Applied in AC inverter and variable frequency drive systems for stable voltage referencing).
- Servo Drive Control Modules: Used in servo drive control modules to ensure precise voltage control).
- Notebook PC Power Adapters: Utilized in notebook PC power adapter designs for efficient and stable power supply).
- Feedback Control in Power Supplies: Often used for feedback control in power supplies, especially when driving optocouplers).
Q & A
- What is the typical reference voltage of the TL431CLPREG?
The typical reference voltage is 2.495 V).
- What is the maximum cathode to anode voltage for the TL431CLPREG?
The maximum cathode to anode voltage is 37 V).
- What is the operating temperature range for the TL431CLPREG?
The operating ambient temperature range is from -40°C to +85°C).
- What is the dynamic impedance of the TL431CLPREG?
The typical dynamic impedance is 0.22 Ω).
- Can the TL431CLPREG be used in automotive applications?
Yes, it is available with NCV and SCV prefixes for automotive and other applications requiring unique site and control change requirements, and is AEC-Q100 qualified).
- Is the TL431CLPREG RoHS compliant?
Yes, the TL431CLPREG is Pb-free, halogen-free/BFR-free, and RoHS compliant).
- What is the sink current capability of the TL431CLPREG?
The device can sink currents from 1 mA to 100 mA).
- What are some common applications of the TL431CLPREG?
Common applications include rack server power, industrial AC/DC power supplies, AC inverter & VF drives, servo drive control modules, and notebook PC power adapters).
- What package type is the TL431CLPREG available in?
The TL431CLPREG is available in a TO-92 (TO-226) package).
- Does the TL431CLPREG have low output noise?
Yes, the TL431CLPREG features low output noise, which is crucial for applications requiring high precision and stability).
