Overview
The TL431AILPRAG is a three-terminal programmable shunt regulator diode produced by onsemi. This monolithic IC operates as a low temperature coefficient zener diode, which can be programmed from the reference voltage (Vref) to 36 V using two external resistors. It is designed to provide a stable voltage reference and can be used in a variety of applications, including digital voltmeters, power supplies, and op-amp circuitry. The device is known for its wide operating current range and low dynamic impedance, making it an excellent replacement for traditional zener diodes.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Cathode to Anode Voltage | VKA | 37 | V |
| Cathode Current Range, Continuous | IK | -100 to +150 | mA |
| Reference Input Current Range, Continuous | Iref | -0.05 to +10 | mA |
| Operating Junction Temperature | TJ | 150 | °C |
| Operating Ambient Temperature Range | TA | -40 to +85 | °C |
| Reference Voltage (Vref) | Vref | 2.44 to 2.495 | V |
| Dynamic Impedance | |ZKA| | 0.22 to 0.5 | Ω |
| Off-State Cathode Current | Ioff | 20 to 1000 | nA |
Key Features
- Programmable output voltage from Vref to 36 V using two external resistors.
- Wide operating current range of 1.0 mA to 100 mA.
- Low dynamic impedance of 0.22 Ω typical.
- Low output noise voltage.
- Temperature compensated for operation over the full rated operating temperature range.
- Pb-free packages available.
- Equivalent full-range temperature coefficient of 50 ppm/°C typical.
Applications
- Digital voltmeters.
- Power supplies.
- Op-amp circuitry.
- Rack server power.
- Industrial AC/DC power supplies.
- AC inverter and VF drives.
- Servo drive control modules).
- Notebook PC power adapter design).
Q & A
- What is the TL431AILPRAG?
The TL431AILPRAG is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the operating current range of the TL431AILPRAG?
The operating current range is from 1.0 mA to 100 mA.
- What is the maximum cathode to anode voltage for the TL431AILPRAG?
The maximum cathode to anode voltage is 37 V.
- What is the reference voltage (Vref) of the TL431AILPRAG?
The reference voltage (Vref) is between 2.44 V and 2.495 V.
- What is the dynamic impedance of the TL431AILPRAG?
The dynamic impedance is typically 0.22 Ω to 0.5 Ω.
- What are the typical applications of the TL431AILPRAG?
Typical applications include digital voltmeters, power supplies, op-amp circuitry, rack server power, and more.
- What is the operating ambient temperature range for the TL431AILPRAG?
The operating ambient temperature range is from -40°C to +85°C.
- Is the TL431AILPRAG Pb-free?
- What is the off-state cathode current of the TL431AILPRAG?
The off-state cathode current is between 20 nA and 1000 nA.
- How is the TL431AILPRAG temperature compensated?
The device is temperature compensated for operation over the full rated operating temperature range.
