Overview
The TL431BCPK is a precision programmable reference voltage regulator produced by Texas Instruments. It is a three-terminal adjustable shunt regulator known for its high accuracy and thermal stability. This component is widely used in various applications requiring a stable voltage reference.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | ±0.5% | |
| Adjustable Output Voltage Range | 2.495 V to 36 V | |
| Operating Temperature Range | −40°C to 125°C | |
| Typical Temperature Drift | 6 mV (C temp), 14 mV (I temp, Q temp) | |
| Output Noise | Low | |
| Output Impedance | 0.2 Ω (typical) | |
| Sink-Current Capability | 1 mA to 100 mA | |
| Package Type | SOT-89-3 | |
| Cathode Voltage (VKA) | 37 V (max) | |
| Continuous Cathode Current Range | −100 mA to 150 mA |
Key Features
- Precision programmable reference voltage
- High thermal stability over a wide temperature range
- Adjustable output voltage from 2.495 V to 36 V
- Low output noise and low output impedance (0.2 Ω typical)
- Sink-current capability from 1 mA to 100 mA
- Available in SOT-89-3 package
Applications
- Rack server power supplies
- Industrial AC/DC power supplies
- AC inverter and variable frequency drives
- Servo drive control modules
- Notebook PC power adapter designs
Q & A
- What is the TL431BCPK?
The TL431BCPK is a precision programmable reference voltage regulator produced by Texas Instruments. - What is the adjustable output voltage range of the TL431BCPK?
The adjustable output voltage range is from 2.495 V to 36 V. - What is the operating temperature range of the TL431BCPK?
The operating temperature range is from −40°C to 125°C. - What is the typical temperature drift of the TL431BCPK?
The typical temperature drift is 6 mV (C temp) and 14 mV (I temp, Q temp). - What is the output impedance of the TL431BCPK?
The output impedance is 0.2 Ω (typical). - What is the sink-current capability of the TL431BCPK?
The sink-current capability is from 1 mA to 100 mA. - In what package is the TL431BCPK available?
The TL431BCPK is available in the SOT-89-3 package. - What are some common applications of the TL431BCPK?
Common applications include rack server power supplies, industrial AC/DC power supplies, AC inverter and variable frequency drives, servo drive control modules, and notebook PC power adapter designs. - What is the maximum cathode voltage for the TL431BCPK?
The maximum cathode voltage is 37 V. - What is the continuous cathode current range for the TL431BCPK?
The continuous cathode current range is from −100 mA to 150 mA.
