Overview
The TL431IDT, produced by STMicroelectronics, is an adjustable shunt voltage reference with high temperature stability and a wide range of applications. This device is part of the TL431 series, known for its precision and reliability. The TL431IDT is particularly suited for automotive and industrial environments due to its extended temperature range and robust specifications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Input Voltage (Vref) | 2.44 | 2.495 | 2.55 | V |
| Adjustable Output Voltage | 2.5 | - | 36 | V |
| Sink Current Capability | 1 | - | 100 | mA |
| Typical Output Impedance | - | 0.22 | 0.5 | Ω |
| Operating Temperature Range | -40 | - | 125 | °C |
| Voltage Precision | - | - | 2% (Standard grade) | % |
| Package Type | - | - | SO-8 | - |
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 0.22 Ω
- Voltage precision options: 0.5% (B grade), 1% (A grade), and 2% (Standard grade)
- Extended operating temperature range from -40 °C to +125 °C for automotive versions
- Low output noise
Applications
- Power supply systems
- Industrial control systems
- Automotive systems
- Rack server power supplies
- Industrial AC/DC converters
- AC inverter and VF drives
- Servo drive control modules
- Notebook PC power adapters
Q & A
- What is the adjustable output voltage range of the TL431IDT?
The output voltage can be set to any value between 2.5 V and 36 V using two external resistors.
- What is the sink current capability of the TL431IDT?
The device can sink current from 1 mA to 100 mA.
- What is the typical output impedance of the TL431IDT?
The typical output impedance is 0.22 Ω.
- What are the voltage precision options for the TL431IDT?
The voltage precision options are 0.5% (B grade), 1% (A grade), and 2% (Standard grade).
- What is the operating temperature range for the TL431IDT?
The operating temperature range is from -40 °C to +125 °C for automotive versions.
- Is the TL431IDT AEC-Q100 qualified?
Yes, the TL431IDT is AEC-Q100 qualified for automotive applications).
- What package type is the TL431IDT available in?
The TL431IDT is available in the SO-8 package type).
- What are some common applications of the TL431IDT?
Common applications include power supply systems, industrial control systems, automotive systems, and more).
- Does the TL431IDT have low output noise?
Yes, the TL431IDT is known for its low output noise).
- How is the dynamic impedance of the TL431IDT defined?
The dynamic impedance is defined as |ZKA| = ΔVKA/ΔIKA, typically 0.22 Ω).
