Overview
The TL431ASDT,215, produced by NXP USA Inc., is a 3-terminal shunt regulator integrated circuit (IC) that belongs to the TL431 family. This IC is designed to provide a stable reference voltage and can be adjusted using two external resistors to set an output voltage range between the reference voltage (Vref) and 36 V. It is known for its enhanced stability, low load capacity requirements, and high Electro-Magnetic Interference (EMI) ruggedness, making it suitable for various applications including Switch Mode Power Supplies (SMPS) and linear power management circuits.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23-3 (TO-236AB) |
| Reference Voltage (Vref) | 2.495 V |
| Output Voltage Range | Vref to 36 V (adjustable) |
| Output Current | 100 mA |
| Operating Temperature Range | -40°C to 125°C |
| RoHS Status | Lead Free / RoHS Compliant |
| Noise Level | Low noise characteristics (specific values depend on frequency range) |
| Power Supply Current | Low power consumption |
Key Features
- High-precision, low-power reference voltage source with excellent stability and low noise characteristics.
- Adjustable output voltage using two external resistors.
- High EMI ruggedness, suitable for SMPS and other high-frequency applications.
- Low load capacity requirement.
- Wide operating temperature range (-40°C to 125°C).
- Small package size (SOT-23-3) facilitating easy integration into circuit boards.
- Tape & Reel (TR) packaging for automated production and transportation efficiency.
Applications
- Measurement and calibration: Provides accurate voltage values for calibrating voltmeters, ammeters, power meters, etc.
- Voltage regulation: Used in voltage regulators, voltage references, and voltage monitors in power management circuits, switching power supplies, linear regulators, and battery-powered equipment.
- Communication systems: Maintains a stable reference voltage for signal processing, modulation, demodulation, and frequency synthesis in wireless transceivers, cellular base stations, and network infrastructure equipment.
- Sensor interfaces: Used in sensor interface circuits for conditioning sensor signals and providing accurate reference voltages for sensor calibration in applications such as temperature sensors, pressure sensors, and strain gauges.
Q & A
- What is the TL431ASDT,215 used for? The TL431ASDT,215 is used as a 3-terminal shunt regulator to provide a stable reference voltage in various applications.
- What is the reference voltage of the TL431ASDT,215? The reference voltage (Vref) is 2.495 V.
- What is the output voltage range of the TL431ASDT,215? The output voltage range is adjustable between Vref and 36 V using two external resistors.
- What is the maximum output current of the TL431ASDT,215? The maximum output current is 100 mA.
- What is the operating temperature range of the TL431ASDT,215? The operating temperature range is -40°C to 125°C.
- Is the TL431ASDT,215 RoHS compliant? Yes, the TL431ASDT,215 is Lead Free / RoHS Compliant.
- What are the key features of the TL431ASDT,215? High precision, low power consumption, adjustable output voltage, high EMI ruggedness, and low noise characteristics.
- In what types of applications is the TL431ASDT,215 commonly used? Measurement and calibration, voltage regulation, communication systems, and sensor interfaces.
- What is the package type of the TL431ASDT,215? The package type is SOT-23-3 (TO-236AB).
- Does the TL431ASDT,215 support automated production? Yes, it uses Tape & Reel (TR) packaging for automated production and transportation efficiency.
