Overview
The TL431CPG4, produced by Texas Instruments, is a precision programmable reference voltage regulator. This device is part of the TL431 series, known for its adjustable output voltage and high thermal stability. The TL431CPG4 is a three-terminal adjustable shunt regulator, making it versatile for various applications requiring precise voltage regulation.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) | % |
| Adjustable Output Voltage | Vref to 36 V | V |
| Operating Temperature Range | –40°C to 125°C (Q grade), 0°C to 70°C (C grade), –40°C to 85°C (I grade) | °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 |
| Package Type | 8-DIP (Dual In-Line Package) | |
| Storage Temperature Range | –65°C to 150°C | °C |
Key Features
- High precision reference voltage with tolerances of 0.5%, 1%, and 2% at 25°C for B, A, and standard grades, respectively.
- Adjustable output voltage from Vref to 36 V.
- Low output noise and typical output impedance of 0.2 Ω.
- Sink-current capability ranging from 1 mA to 100 mA.
- Low temperature drift, ensuring good stability over the entire temperature range.
- Available in various temperature grades: C (0°C to 70°C), I (–40°C to 85°C), and Q (–40°C to 125°C).
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 TL431CPG4?
The TL431CPG4 is a precision programmable reference voltage regulator produced by Texas Instruments.
- What are the reference voltage tolerances for the TL431CPG4?
The reference voltage tolerances are 0.5% (B grade), 1% (A grade), and 2% (Standard grade) at 25°C.
- What is the adjustable output voltage range of the TL431CPG4?
The adjustable output voltage range is from Vref to 36 V.
- What are the operating temperature ranges for the TL431CPG4?
The operating temperature ranges are –40°C to 125°C (Q grade), 0°C to 70°C (C grade), and –40°C to 85°C (I grade).
- What is the typical temperature drift of the TL431CPG4?
The typical temperature drift is 6 mV (C temp) and 14 mV (I temp, Q temp).
- What is the output impedance of the TL431CPG4?
The typical output impedance is 0.2 Ω.
- What is the sink-current capability of the TL431CPG4?
The sink-current capability ranges from 1 mA to 100 mA.
- In what package type is the TL431CPG4 available?
The TL431CPG4 is available in an 8-DIP (Dual In-Line Package).
- What are some common applications of the TL431CPG4?
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 storage temperature range for the TL431CPG4?
The storage temperature range is –65°C to 150°C.
