Overview
The TL431CLPRM, produced by onsemi, is a three-terminal programmable shunt regulator diode. This device operates as a low temperature coefficient zener diode that is programmable from 2.5 V to 36 V using two external resistors. It is part of the TL431 series, known for its wide operating current range and excellent temperature stability, making it a versatile component for various electronic applications.
Key Specifications
| Characteristic | Symbol | Unit | Typical Value | Minimum Value | Maximum Value |
|---|---|---|---|---|---|
| Reference Input Voltage | Vref | V | 2.495 | 2.44 | 2.55 |
| Voltage Reference Tolerance | - | % | - | - | ±0.4% @ 25°C (TL431B) |
| Dynamic Output Impedance | ZKA | Ω | 0.22 | - | 0.5 |
| Sink Current Capability | IK | mA | - | 1.0 | 100 |
| Temperature Coefficient | - | ppm/°C | 50 | - | - |
| Cathode to Anode Voltage | VKA | V | - | - | 37 |
| Operating Junction Temperature | TJ | °C | - | - | 150 |
| Operating Ambient Temperature Range | TA | °C | - | -40 | 85 |
Key Features
- Programmable Output Voltage: The TL431CLPRM can be programmed to output voltages from 2.5 V to 36 V using two external resistors.
- Low Dynamic Output Impedance: It features a typical dynamic output impedance of 0.22 Ω, ensuring stable voltage regulation.
- Wide Operating Current Range: The device can operate with a sink current capability of 1.0 mA to 100 mA.
- Temperature Stability: It has an equivalent full-range temperature coefficient of 50 ppm/°C, making it suitable for applications requiring stable voltage references over a wide temperature range.
- Low Output Noise Voltage: The TL431CLPRM is designed to minimize output noise, enhancing its performance in sensitive applications.
- Pb-Free Packages: Available in lead-free packages, making it compliant with environmental regulations.
Applications
- Digital Voltmeters: The TL431CLPRM can be used as a stable voltage reference in digital voltmeters due to its precise and adjustable output voltage.
- Power Supplies: It is suitable for use in power supply circuits where a stable and adjustable voltage reference is required.
- Op Amp Circuitry: The device can be used in operational amplifier circuits to provide a stable reference voltage.
- Switch Adjustment Control Circuits: It can be utilized in switch adjustment control circuits and as a series or shunt voltage regulator.
- Automotive, Military, and Commercial Applications: The TL431 series, including the TL431CLPRM, is used in various applications across automotive, military, and commercial sectors due to its robust temperature stability and reliability.
Q & A
- What is the programmable output voltage range of the TL431CLPRM?
The TL431CLPRM can be programmed to output voltages from 2.5 V to 36 V using two external resistors.
- What is the typical dynamic output impedance of the TL431CLPRM?
The typical dynamic output impedance is 0.22 Ω.
- What is the operating current range of the TL431CLPRM?
The device operates with a sink current capability of 1.0 mA to 100 mA.
- What is the temperature coefficient of the TL431CLPRM?
The equivalent full-range temperature coefficient is 50 ppm/°C.
- What are the typical applications of the TL431CLPRM?
It is used in digital voltmeters, power supplies, op amp circuitry, and various automotive, military, and commercial applications.[
- Is the TL431CLPRM available in Pb-Free packages?
Yes, the TL431CLPRM is available in lead-free packages.[
- What is the maximum operating junction temperature of the TL431CLPRM?
The maximum operating junction temperature is 150°C.[
- What is the operating ambient temperature range of the TL431CLPRM?
The operating ambient temperature range is from -40°C to 85°C.[
- How many active transistors does the TL431CLPRM contain?
The device contains 12 active transistors.[
- What is the maximum cathode to anode voltage of the TL431CLPRM?
The maximum cathode to anode voltage is 37 V.[
