Overview
The TL431CLPRAG is a three-terminal programmable shunt regulator diode produced by onsemi. This device operates as a low temperature coefficient zener, which can be programmed from the reference voltage (Vref) to 36 V using two external resistors. It is part of the TL431 series, known for its wide operating current range and stability, making it an excellent replacement for zener diodes in various applications.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Output Type | Adjustable | |
| Voltage - Output (Min/Fixed) | 2.495 V | V |
| Voltage - Output (Max) | 36 V | V |
| Current - Output | 1 mA to 100 mA | mA |
| Tolerance | ±2.2% | % |
| Cathode to Anode Voltage (VKA) | 37 V | V |
| Operating Junction Temperature (TJ) | 150 °C | °C |
| Operating Ambient Temperature Range (TA) | 0 to 70 °C | °C |
| Dynamic Impedance | 0.22 Ω (Typical) | Ω |
| Reference Input Voltage (Vref) | 2.44 to 2.55 V | V |
| Reference Input Current Range | -0.05 to +10 mA | mA |
Key Features
- Programmable Output Voltage: From Vref to 36 V using two external resistors.
- Voltage Reference Tolerance: ±0.4% (Typical) at 25°C for TL431B grade.
- Low Dynamic Output Impedance: 0.22 Ω (Typical).
- Sink Current Capability: 1 mA to 100 mA.
- Temperature Stability: Equivalent full-range temperature coefficient of 50 ppm/°C (Typical).
- Low Output Noise Voltage: Suitable for noise-sensitive applications.
- Pb-Free Packages Available: Compliant with lead-free requirements.
Applications
- Digital Voltmeters: Provides a stable reference voltage.
- Power Supplies: Used as a shunt regulator for voltage regulation.
- Op Amp Circuitry: Acts as a precision voltage reference.
- Rack Server Power: Suitable for server power supply designs.
- Industrial AC/DC and AC Inverter & VF Drives: Used in various industrial power conversion applications.
- Servo Drive Control Module: Provides stable voltage references for servo drive systems.
- Notebook PC Power Adapter Design: Used in power adapter designs for notebooks.
Q & A
- What is the TL431CLPRAG?
The TL431CLPRAG is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the output voltage range of the TL431CLPRAG?
The output voltage can be programmed from the reference voltage (Vref) to 36 V using two external resistors.
- What is the typical dynamic impedance of the TL431CLPRAG?
The typical dynamic impedance is 0.22 Ω.
- What is the operating current range of the TL431CLPRAG?
The device operates over a current range of 1 mA to 100 mA.
- What is the temperature range for the TL431CLPRAG?
The operating ambient temperature range is from 0 to 70 °C.
- What are some common applications of the TL431CLPRAG?
Common applications include digital voltmeters, power supplies, op amp circuitry, rack server power, industrial AC/DC and AC inverter & VF drives, servo drive control modules, and notebook PC power adapter designs.
- Is the TL431CLPRAG lead-free?
- What is the reference input voltage (Vref) of the TL431CLPRAG?
The reference input voltage (Vref) ranges from 2.44 to 2.55 V.
- What is the maximum cathode to anode voltage (VKA) for the TL431CLPRAG?
The maximum cathode to anode voltage (VKA) is 37 V.
- How does the TL431CLPRAG handle temperature variations?
The device is temperature compensated for operation over its full rated operating temperature range, with an equivalent full-range temperature coefficient of 50 ppm/°C (Typical).
