Overview
The TL431AILPRMG 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) of approximately 2.5 V to 36 V using two external resistors. It is designed to offer a wide operating current range and stable voltage reference, making it suitable for various applications in electronics.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Cathode to Anode Voltage | VKA | V | - | - | 37 |
| Cathode Current Range, Continuous | IK | mA | -100 | - | 150 |
| Reference Input Current Range, Continuous | Iref | mA | -0.05 | - | 10 |
| Operating Junction Temperature | TJ | °C | - | - | 150 |
| Operating Ambient Temperature Range | TA | °C | -40 | - | 85 |
| Reference Input Voltage | Vref | V | 2.44 | 2.495 | 2.55 |
| Dynamic Impedance | |ZKA| | Ω | 0.22 | - | 0.5 |
| Minimum Cathode Current for Regulation | Imin | mA | 0.5 | - | 1.0 |
| Off-State Cathode Current | Ioff | nA | 20 | - | 1000 |
Key Features
- Programmable output voltage from Vref (approximately 2.5 V) to 36 V using two external resistors.
- Wide operating current range of 1.0 mA to 100 mA.
- Low dynamic output impedance, typically 0.22 Ω.
- Low output noise voltage.
- Temperature-compensated for operation over the full rated operating temperature range.
- Pb-free packages available.
- Voltage reference tolerance: +/- 0.4% (typical at 25°C for TL431B grade).
Applications
- Rack server power supplies
- Industrial AC/DC power supplies
- AC inverter and VF drives
- Servo drive control modules
- Notebook PC power adapter designs
- Digital voltmeters
- Power supplies
- Op-amp circuitry
Q & A
- What is the TL431AILPRMG? The TL431AILPRMG is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the programmable voltage range of the TL431AILPRMG? The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V using two external resistors.
- What is the operating current range of the TL431AILPRMG? The device operates over a current range of 1.0 mA to 100 mA.
- What is the typical dynamic impedance of the TL431AILPRMG? The typical dynamic impedance is 0.22 Ω.
- What are the operating temperature ranges for the TL431AILPRMG? The operating ambient temperature range is from -40°C to 85°C.
- What is the reference input voltage tolerance of the TL431AILPRMG? The voltage reference tolerance is +/- 0.4% (typical at 25°C for TL431B grade).
- Is the TL431AILPRMG suitable for high-temperature applications? Yes, it is temperature-compensated for operation over the full rated operating temperature range.
- What are some common applications of the TL431AILPRMG? Common applications include rack server power supplies, industrial AC/DC power supplies, AC inverter and VF drives, servo drive control modules, and notebook PC power adapter designs.
- Does the TL431AILPRMG have low output noise? Yes, the TL431AILPRMG has low output noise voltage.
- Are Pb-free packages available for the TL431AILPRMG? Yes, Pb-free packages are available.
