Overview
The TL431AIPG is a three-terminal programmable shunt regulator diode produced by onsemi. This monolithic IC voltage reference 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 designed to provide a stable voltage reference with a wide operating current range of 1.0 mA to 100 mA and a typical dynamic impedance of 0.22 Ω. The TL431AIPG is suitable for various applications, including digital voltmeters, power supplies, and op-amp circuitry, making it an excellent replacement for traditional zener diodes.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Voltage Tolerance (TL431B) | ±0.4% | @ 25°C | ||
| Programmable Output Voltage | Vref | 36 V | ||
| Operating Current Range | 1.0 mA | 100 mA | ||
| Dynamic Impedance | 0.22 Ω | 0.5 Ω | ||
| Operating Junction Temperature | -40°C | 85°C | ||
| Storage Temperature Range | -65°C | 150°C | ||
| Total Power Dissipation @ TA = 25°C | 0.70 W (D, LP Suffix) | 1.10 W (P Suffix) | ||
| ESD Rating (HBM) | >2000 V |
Key Features
- Programmable Output Voltage to 36 V with two external resistors.
- Voltage Reference Tolerance: ±0.4% (Typ @ 25°C for TL431B).
- Low Dynamic Output Impedance: 0.22 Ω Typical.
- Sink Current Capability: 1.0 mA to 100 mA.
- Equivalent Full-Range Temperature Coefficient: 50 ppm/°C Typical.
- Temperature Compensated for Operation over Full Rated Operating Temperature Range.
- Low Output Noise Voltage.
- Pb-Free Packages are Available.
Applications
- Digital Voltmeters.
- Power Supplies.
- Op-Amp Circuitry.
- Rack Server Power.
- Industrial AC/DC.
- AC Inverter & VF Drives.
- Servo Drive Control Module.
- Notebook PC Power Adapter Design).
Q & A
- What is the TL431AIPG?
The TL431AIPG is a three-terminal programmable shunt regulator diode produced by onsemi, used as a low temperature coefficient zener diode.
- What is the programmable output voltage range of the TL431AIPG?
The TL431AIPG can be programmed to output voltages from the reference voltage (Vref) to 36 V using two external resistors.
- What is the operating current range of the TL431AIPG?
The operating current range of the TL431AIPG is from 1.0 mA to 100 mA.
- What is the typical dynamic impedance of the TL431AIPG?
The typical dynamic impedance of the TL431AIPG is 0.22 Ω.
- What are the operating temperature ranges for the TL431AIPG?
The TL431AIPG operates from -40°C to 85°C and can be stored from -65°C to 150°C.
- What are some common applications of the TL431AIPG?
Common applications include digital voltmeters, power supplies, op-amp circuitry, rack server power, industrial AC/DC, AC inverter & VF drives, servo drive control modules, and notebook PC power adapter designs.
- Does the TL431AIPG have low output noise?
Yes, the TL431AIPG is characterized by low output noise voltage.
- Are Pb-Free packages available for the TL431AIPG?
Yes, Pb-Free packages are available for the TL431AIPG.
- What is the ESD rating of the TL431AIPG?
The ESD rating of the TL431AIPG is greater than 2000 V (HBM).
- What is the total power dissipation of the TL431AIPG at 25°C?
The total power dissipation at 25°C varies by package, but for example, it is 0.70 W for D and LP suffix packages and 1.10 W for P suffix packages.
