Overview
The TL431AIDR2G is a programmable precision shunt regulator diode produced by onsemi. This three-terminal integrated circuit operates as a low temperature coefficient zener diode, which can be programmed to output voltages from 2.495V to 36V using two external resistors. It is designed for a wide range of applications, including digital voltmeters, power supplies, and op-amp circuitry. The device is known for its stability and low dynamic output impedance, making it an excellent replacement for traditional zener diodes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Type | Adjustable | |
| Operating Temperature | -40 to 85 | °C |
| Topology | Shunt | |
| Reference Voltage | 2.495V (typical) | V |
| Voltage Reference Tolerance | ±0.4% (typical @ 25°C) | % |
| Dynamic Output Impedance | 0.22 Ω (typical) | Ω |
| Sink Current Capability | 1.0 mA to 100 mA | mA |
| Temperature Coefficient | 50 ppm/°C (typical) | ppm/°C |
| Package Type | SOIC-8 | |
| Product Dimensions | 5 x 4 x 1.5 mm | mm |
Key Features
- Programmable output voltage from 2.495V to 36V using two external resistors.
- Low dynamic output impedance of 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 the full rated operating temperature range.
- Low output noise voltage.
- Pb-free packages available.
Applications
- Digital voltmeters
- Power supplies
- Op-amp circuitry
- Replacement for zener diodes in various applications
Q & A
- What is the TL431AIDR2G?
The TL431AIDR2G is a programmable precision shunt regulator diode produced by onsemi.
- What is the operating temperature range of the TL431AIDR2G?
The operating temperature range is -40 to 85°C.
- What is the typical reference voltage of the TL431AIDR2G?
The typical reference voltage is 2.495V.
- What is the voltage reference tolerance of the TL431AIDR2G?
The voltage reference tolerance is ±0.4% (typical @ 25°C).
- What is the dynamic output impedance of the TL431AIDR2G?
The dynamic output impedance is 0.22 Ω (typical).
- What is the sink current capability of the TL431AIDR2G?
The sink current capability is from 1.0 mA to 100 mA.
- What is the temperature coefficient of the TL431AIDR2G?
The temperature coefficient is 50 ppm/°C (typical).
- In what package type is the TL431AIDR2G available?
The TL431AIDR2G is available in an SOIC-8 package.
- What are the dimensions of the TL431AIDR2G?
The dimensions are 5 x 4 x 1.5 mm.
- What are some common applications of the TL431AIDR2G?
Common applications include digital voltmeters, power supplies, and op-amp circuitry.
