Overview
The TL431AIPE4 is a precision programmable reference voltage regulator produced by Texas Instruments. This device is part of the TL431 and TL432 series, known for their adjustable output voltage and high thermal stability. The TL431AIPE4 is specifically designed to operate over a wide temperature range, making it suitable for various industrial and automotive applications. It features a three-terminal adjustable shunt regulator configuration, which allows for precise voltage regulation and replaces traditional Zener diodes in many circuits.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reference Voltage (Vref) | 2.470 | 2.495 | 2.520 | mV |
| Output Voltage Range | 2.495 | - | 36 | V |
| Sink Current Range | 1 | - | 100 | mA |
| Operating Junction Temperature Range | -40 | - | 125 | °C |
| Dynamic Impedance (|ZKA|) | 0.2 | - | 0.5 | Ω |
| Reference Voltage Tolerance at 25°C (A Grade) | - | - | 1% | - |
Key Features
- Adjustable output voltage from 2.495 V to 36 V
- Reference voltage tolerance at 25°C: 1% (A grade)
- Operation from -40°C to 125°C
- Typical temperature drift: 6 mV (C temp), 14 mV (I temp, Q temp)
- Low output noise
- 0.2-Ω typical output impedance
- Sink-current capability: 1 mA to 100 mA
Applications
- Rack server power supplies
- Industrial AC/DC power supplies
- AC inverter and VF drives
- Servo drive control modules
- Notebook PC power adapter designs
Q & A
- What is the TL431AIPE4 used for?
The TL431AIPE4 is used as a precision programmable reference voltage regulator in various applications, including industrial and automotive systems.
- What is the adjustable output voltage range of the TL431AIPE4?
The adjustable output voltage range is from 2.495 V to 36 V.
- What is the operating temperature range of the TL431AIPE4?
The device operates from -40°C to 125°C.
- What is the typical temperature drift of the TL431AIPE4?
The typical temperature drift is 6 mV (C temp) and 14 mV (I temp, Q temp).
- What is the sink-current capability of the TL431AIPE4?
The sink-current capability ranges from 1 mA to 100 mA.
- What are some common applications of the TL431AIPE4?
Common applications include rack server power supplies, industrial AC/DC power supplies, AC inverter and VF drives, servo drive control modules, and notebook PC power adapter designs.
- What is the dynamic impedance of the TL431AIPE4?
The dynamic impedance is typically 0.2 Ω to 0.5 Ω.
- Is the TL431AIPE4 RoHS compliant?
- What is the reference voltage tolerance at 25°C for the TL431AIPE4?
The reference voltage tolerance at 25°C is 1% for the A grade.
- What package types are available for the TL431AIPE4?
The TL431AIPE4 is available in an 8-pin PDIP package.
