Overview
The TL431CLPG is a three-terminal programmable shunt regulator diode produced by onsemi. This monolithic IC voltage reference operates as a low temperature coefficient zener that can be programmed from the reference voltage to 36 V using two external resistors. The device is known for its wide operating current range of 1.0 mA to 100 mA and a typical dynamic impedance of 0.22 Ω. This makes it an excellent replacement for zener diodes in various applications, including digital voltmeters, power supplies, and op-amp circuitry. The 2.5 V reference voltage allows for convenient use with 5.0 V logic supplies, and it can function as either a positive or negative voltage reference.
Key Specifications
| Specification | Value |
|---|---|
| Shunt Type | Shunt |
| Output Type | Adjustable |
| Accuracy | ±2.2% |
| Reference Voltage | 2.495 V |
| Output Voltage | 2.44 V to 36 V |
| Output Impedance | 0.5 Ω |
| Cathode Current | 1 mA to 100 mA |
| Power Dissipation | 0.7 W |
| Operating Temperature Range | 0°C to 70°C |
| Package Style | TO-92 |
| Mounting Method | Through Hole |
Key Features
- Programmable Output Voltage to 36 V
- Voltage Reference Tolerance: ±0.4% (Typ @ 25°C for TL431B)
- Low Dynamic Output Impedance, 0.22 Ω Typical
- Sink Current Capability of 1.0 mA to 100 mA
- Equivalent Full-Range Temperature Coefficient of 50 ppm/°C Typical
- Temperature Compensated for Operation over Full Rated Operating Temperature Range
- Low Output Noise Voltage
- Pb-Free Packages are Available
Applications
The TL431CLPG is suitable for a variety of applications, including:
- Digital voltmeters
- Power supplies
- Op-amp circuitry
- Metering and power management systems
Q & A
- What is the TL431CLPG?
The TL431CLPG is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the reference voltage of the TL431CLPG?
The reference voltage is 2.495 V.
- What is the output voltage range of the TL431CLPG?
The output voltage can be programmed from 2.44 V to 36 V.
- What is the operating current range of the TL431CLPG?
The operating current range is from 1 mA to 100 mA.
- What is the typical dynamic impedance of the TL431CLPG?
The typical dynamic impedance is 0.22 Ω.
- What is the operating temperature range of the TL431CLPG?
The operating temperature range is from 0°C to 70°C.
- What package style and mounting method does the TL431CLPG use?
The TL431CLPG comes in a TO-92 package and uses through-hole mounting.
- What are some common applications of the TL431CLPG?
Common applications include digital voltmeters, power supplies, op-amp circuitry, and metering and power management systems.
- Is the TL431CLPG available in Pb-free packages?
- What is the power dissipation of the TL431CLPG?
The power dissipation is 0.7 W.
