Overview
The TL431IDE4 is a three-terminal adjustable shunt regulator produced by Texas Instruments. This device is part of the TL431 series, known for its thermal stability over a wide range of temperatures, making it suitable for automotive, commercial, and military applications. The TL431IDE4 allows for adjustable output voltage between approximately 2.5V and 36V using two external resistors, making it versatile for various power supply and voltage regulation needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) | % |
| Adjustable Output Voltage | Vref to 36V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Sink-Current Capability | 1mA to 100mA | mA |
| Typical Output Impedance | 0.2Ω | Ω |
| Typical Temperature Drift | 6mV (C temp), 14mV (I temp, Q temp) | mV |
| Package Type | SOT-SC70 (DCK) | - |
| Pins | 6 | - |
Key Features
- Adjustable output voltage from approximately 2.5V to 36V using two external resistors.
- Operation over a wide temperature range from -40°C to 125°C.
- Low output noise and typical output impedance of 0.2Ω.
- Sink-current capability from 1mA to 100mA.
- Low output drift versus temperature, ensuring good stability.
- AEC-Q100 qualified for automotive applications.
- Active output circuitry providing a sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
Applications
- On-board voltage regulation.
- Adjustable power supplies.
- Switching power supplies.
- Automotive systems requiring stable voltage references.
- Industrial power management systems.
- Replacement for Zener diodes in various applications.
Q & A
- What is the adjustable output voltage range of the TL431IDE4?
The adjustable output voltage range is from approximately 2.5V to 36V.
- What are the temperature tolerance grades available for the TL431IDE4?
The device is available in three grades with initial tolerances of 0.5% (B grade), 1% (A grade), and 2% (Standard grade) at 25°C.
- What is the operating temperature range of the TL431IDE4?
The operating temperature range is from -40°C to 125°C.
- What is the typical output impedance of the TL431IDE4?
The typical output impedance is 0.2Ω.
- What is the sink-current capability of the TL431IDE4?
The sink-current capability ranges from 1mA to 100mA.
- Is the TL431IDE4 suitable for automotive applications?
- Can the TL431IDE4 replace Zener diodes in some applications?
- What package type is the TL431IDE4 available in?
The TL431IDE4 is available in the SOT-SC70 (DCK) package.
- How many pins does the TL431IDE4 have?
The TL431IDE4 has 6 pins.
- What are some common applications of the TL431IDE4?
