Overview
The TL431BIDBZRG4 is a precision programmable shunt voltage reference produced by Texas Instruments. This device is part of the TL431 family, known for its adjustable precision shunt regulation capabilities. It offers specified thermal stability over a wide temperature range, making it suitable for various automotive, commercial, and industrial applications. The TL431BIDBZRG4 is a three-terminal device that can be used to set output voltages from approximately 2.5V to 36V using two external resistors.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Reference Voltage (VREF) | 2.440 | 2.495 | 2.550 | mV |
| Deviation of Reference Voltage (VI(DEV)) | - | 14 | 34 | mV |
| Adjustable Output Voltage Range | 2.495 | - | 36 | V |
| Sink-Current Capability | 1 | - | 100 | mA |
| Output Impedance | - | 0.2 | - | Ω |
| Operating Temperature Range | -40 | - | 125 | °C |
| Reference Voltage Tolerance at 25°C | - | - | 0.5% | - |
Key Features
- Adjustable output voltage from approximately 2.5V to 36V using two external resistors.
- Low dynamic output impedance of 0.2Ω.
- Sink-current capability from 1mA to 100mA.
- Specified thermal stability over a wide temperature range (-40°C to 125°C).
- Low output noise and sharp turn-on characteristic, making it an excellent replacement for Zener diodes.
- Available in different grades with initial tolerances of 0.5%, 1%, and 2% at 25°C.
Applications
- Precision voltage regulation in various electronic systems.
- On-board regulation and adjustable power supplies.
- Switching power supplies, including flyback SMPSs and DC-DC converters.
- Battery management systems and voltage monitoring applications.
- Rack server power, industrial AC/DC, AC inverter & VF drives, and servo drive control modules.
Q & A
- Q: What is the typical output voltage of the TL431BIDBZRG4?
A: The TL431BIDBZRG4 provides a typical output voltage of 2.495V, which can be adjusted as per the application's requirements using external resistors. - Q: What are the typical applications of the TL431BIDBZRG4?
A: The TL431BIDBZRG4 is commonly used in precision voltage regulation, battery management systems, and switching power supplies to provide stable and accurate reference voltages. - Q: What is the operating temperature range of the TL431BIDBZRG4?
A: The TL431BIDBZRG4 operates from -40°C to 125°C. - Q: How is the output voltage of the TL431BIDBZRG4 adjusted?
A: The output voltage can be adjusted using two external resistors. - Q: What is the typical output impedance of the TL431BIDBZRG4?
A: The typical output impedance is 0.2Ω. - Q: What are the different grades of the TL431BIDBZRG4 based on reference voltage tolerance?
A: The TL431BIDBZRG4 is available in grades with initial tolerances of 0.5%, 1%, and 2% at 25°C. - Q: Can the TL431BIDBZRG4 replace Zener diodes in some applications?
A: Yes, the TL431BIDBZRG4 can replace Zener diodes due to its sharp turn-on characteristic and low output impedance. - Q: What is the sink-current capability of the TL431BIDBZRG4?
A: The sink-current capability ranges from 1mA to 100mA. - Q: What package types are available for the TL431BIDBZRG4?
A: The TL431BIDBZRG4 is available in SOT-23 (3-pin) packages. - Q: Is the TL431BIDBZRG4 suitable for automotive applications?
A: Yes, the TL431BIDBZRG4 is suitable for automotive applications due to its specified thermal stability over applicable automotive temperature ranges.
