Overview
The TL431CPS is a precision programmable reference voltage regulator produced by Texas Instruments. It is part of the TL431 and TL432 series, known for their adjustable output voltage and high thermal stability. This three-terminal adjustable shunt regulator is widely used in various applications requiring stable voltage references.
The device is available in several package options, including the SOP-8 package for the TL431CPS, which is compact and suitable for a variety of board designs. The TL431CPS is characterized by its ability to operate over a wide temperature range, making it suitable for both industrial and automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) | % |
| Adjustable Output Voltage | 2.495 V to 36 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Typical Temperature Drift | 6 mV (C temp), 14 mV (I temp, Q temp) | mV |
| Output Impedance | 0.2 Ω (typical) | Ω |
| Sink-Current Capability | 1 mA to 100 mA | mA |
| Cathode Voltage | 37 V (max) | V |
| Continuous Cathode Current Range | -100 mA to 150 mA | mA |
| Reference Input Current | -0.05 mA to 10 mA | mA |
Key Features
- High precision reference voltage with tolerances of 0.5%, 1%, and 2% at 25°C
- Adjustable output voltage from 2.495 V to 36 V
- Wide operating temperature range from -40°C to 125°C
- Low output noise and typical output impedance of 0.2 Ω
- Sink-current capability from 1 mA to 100 mA
- Compact SOP-8 package for efficient board design
Applications
- Rack server power supplies
- Industrial AC/DC power supplies
- AC inverter and variable frequency (VF) drives
- Servo drive control modules
- Notebook PC power adapter designs
Q & A
- What is the TL431CPS?
The TL431CPS is a precision programmable reference voltage regulator produced by Texas Instruments.
- What are the key features of the TL431CPS?
Key features include high precision reference voltage, adjustable output voltage, wide operating temperature range, low output noise, and compact packaging.
- What are the typical applications of the TL431CPS?
Typical 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 operating temperature range of the TL431CPS?
The operating temperature range is from -40°C to 125°C.
- What is the adjustable output voltage range of the TL431CPS?
The adjustable output voltage range is from 2.495 V to 36 V.
- What is the typical output impedance of the TL431CPS?
The typical output impedance is 0.2 Ω.
- What is the sink-current capability of the TL431CPS?
The sink-current capability ranges from 1 mA to 100 mA.
- What are the available package options for the TL431CPS?
The TL431CPS is available in an SOP-8 package among other options.
- Is the TL431CPS RoHS compliant?
- Can the TL431CPS be used in automotive applications?
