Overview
The TL431IDRG4, produced by Texas Instruments, is a precision adjustable shunt voltage regulator. This device is part of the TL431 family, known for its high thermal stability and adjustable output voltage. The TL431IDRG4 is particularly suited for applications requiring a stable voltage reference with a wide range of adjustability. It operates over a broad temperature range, making it versatile for various industrial, automotive, and commercial uses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) | % |
| Adjustable Output Voltage | 2.5 V to 36 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Sink-Current Capability | 1 mA to 100 mA | mA |
| Typical Output Impedance | 0.2 Ω | Ω |
| Typical Temperature Drift | 6 mV (C temp), 14 mV (I temp, Q temp) | mV |
| Cathode Voltage | Up to 37 V | V |
| Reference Input Current | -0.05 to 10 mA | mA |
Key Features
- AEC-Q100 qualified for automotive applications
- Adjustable output voltage from 2.5 V to 36 V using two external resistors
- Sink-current capability from 1 mA to 100 mA
- Typical output impedance of 0.2 Ω
- Low output noise and sharp turn-on characteristic
- Operation from -40°C to 125°C, making it suitable for a wide range of environments
- Low output drift versus temperature, ensuring good stability over the entire temperature range
Applications
- Rack server power supplies
- Industrial AC/DC power supplies
- AC inverters and variable frequency (VF) drives
- Servo drive control modules
- Notebook PC power adapter designs
- On-board regulation and adjustable power supplies
- Switching power supplies
Q & A
- What is the adjustable output voltage range of the TL431IDRG4?
The TL431IDRG4 can have its output voltage adjusted between 2.5 V and 36 V using two external resistors.
- What are the temperature ranges for different grades of the TL431?
The TL431 devices are characterized for operation from 0°C to 70°C (C grade), -40°C to 85°C (I grade), and -40°C to 125°C (Q grade).
- What is the typical output impedance of the TL431IDRG4?
The typical output impedance of the TL431IDRG4 is 0.2 Ω.
- What is the sink-current capability of the TL431IDRG4?
The TL431IDRG4 can sink current from 1 mA to 100 mA.
- Is the TL431IDRG4 suitable for automotive applications?
- What are some common applications of the TL431IDRG4?
- How does the TL431IDRG4 compare to Zener diodes?
- What is the reference voltage tolerance at 25°C for the TL431IDRG4?
- Does the TL431IDRG4 have low output noise?
- How can I calculate the component parameters for the desired output voltage of the TL431IDRG4?
