Overview
The TL431CLPRMG is a three-terminal programmable shunt regulator diode produced by onsemi. This monolithic IC operates as a low temperature coefficient zener, which can be programmed to output voltages from 2.5 V to 36 V using two external resistors. It is designed to operate over a wide current range of 1.0 mA to 100 mA, making it suitable for various applications such as power supplies, industrial equipment, and automotive systems.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Cathode to Anode Voltage | VKA | V | - | - | 37 |
| Cathode Current Range | IK | mA | -100 | - | 150 |
| Reference Input Current Range | Iref | mA | -0.05 | - | 10 |
| Operating Junction Temperature | TJ | °C | - | - | 150 |
| Operating Ambient Temperature Range | TA | °C | 0 | - | 70 |
| Reference Input Voltage | Vref | V | 2.44 | 2.495 | 2.55 |
| Dynamic Impedance | |ZKA| | Ω | 0.22 | - | 0.5 |
| Thermal Resistance, Junction-to-Ambient | RθJA | °C/W | 178 | - | - |
| Thermal Resistance, Junction-to-Case | RθJC | °C/W | 83 | - | - |
Key Features
- Programmable output voltage from 2.5 V to 36 V using two external resistors.
- Sink current capability of 1.0 mA to 100 mA.
- Low dynamic output impedance of 0.22 Ω typical.
- Voltage reference tolerance of ±0.4% typical at 25°C for the TL431B version.
- 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, halogen-free, and RoHS compliant packages.
- AEC-Q100 qualified for automotive applications.
Applications
- Power supplies: Used as a precision voltage reference to stabilize output voltages.
- Industrial equipment: Suitable for various industrial applications requiring stable voltage references.
- Automotive systems: AEC-Q100 qualified, making it suitable for automotive applications with an extended temperature range of -40°C to +125°C.
- Digital voltmeters and op-amp circuitry: Provides a stable reference voltage for measurement and amplification circuits.
Q & A
- What is the programmable output voltage range of the TL431CLPRMG?
The TL431CLPRMG can be programmed to output voltages from 2.5 V to 36 V using two external resistors.
- What is the sink current capability of the TL431CLPRMG?
The sink current capability ranges from 1.0 mA to 100 mA.
- What is the typical dynamic impedance of the TL431CLPRMG?
The typical dynamic impedance is 0.22 Ω.
- What is the voltage reference tolerance of the TL431B version at 25°C?
The voltage reference tolerance is ±0.4% typical at 25°C for the TL431B version.
- What is the temperature coefficient of the TL431CLPRMG?
The equivalent full-range temperature coefficient is 50 ppm/°C typical.
- Is the TL431CLPRMG temperature compensated?
- What are the operating temperature ranges for the TL431CLPRMG?
The operating ambient temperature range is from 0°C to 70°C.
- Is the TL431CLPRMG AEC-Q100 qualified?
- What types of packages are available for the TL431CLPRMG?
The TL431CLPRMG is available in Pb-free, halogen-free, and RoHS compliant packages.
- What are some common applications of the TL431CLPRMG?
