Overview
The TL431ALP-AP is a precision programmable reference voltage regulator produced by Micro Commercial Co, based on the original design by Texas Instruments. This three-terminal adjustable shunt regulator is known for its high thermal stability and wide operating temperature range, making it suitable for various industrial and automotive applications. The device is available in several packages, including the SOT-23-5 package for the TL431ALP-AP model.
Key Specifications
| Parameter | Value |
|---|---|
| Reference Voltage Tolerance at 25°C | 0.5% (B grade), 1% (A grade), 2% (Standard grade) |
| Adjustable Output Voltage | Vref 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 noise |
| Output Impedance | 0.2-Ω typical |
| Sink-Current Capability | 1 mA to 100 mA |
| Input Voltage Range | 2.475V ~ 37V |
Key Features
- Precision programmable reference voltage regulator
- High thermal stability over a wide temperature range
- Adjustable output voltage from Vref 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 various packages including SOT-23-5
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 TL431ALP-AP used for? The TL431ALP-AP is used as a precision programmable reference voltage regulator in various applications including industrial power supplies, automotive systems, and consumer electronics.
- What is the operating temperature range of the TL431ALP-AP? The operating temperature range is from −40°C to 125°C.
- What are the typical temperature drift values for the TL431ALP-AP? The typical temperature drift values are 6 mV for commercial temperature range and 14 mV for industrial and automotive temperature ranges.
- What is the adjustable output voltage range of the TL431ALP-AP? The adjustable output voltage range is from Vref to 36 V.
- What is the sink-current capability of the TL431ALP-AP? The sink-current capability ranges from 1 mA to 100 mA.
- What packages are available for the TL431ALP-AP? The TL431ALP-AP is available in the SOT-23-5 package among others.
- What is the output impedance of the TL431ALP-AP? The output impedance is typically 0.2-Ω.
- Is the TL431ALP-AP suitable for automotive applications? Yes, it is suitable for automotive applications due to its specified thermal stability.
- What are some common applications of the TL431ALP-AP? Common applications include rack server power supplies, industrial AC/DC power supplies, AC inverters, and servo drive control modules.
- Where can I find detailed specifications for the TL431ALP-AP? Detailed specifications can be found in the datasheet from Texas Instruments or on distributor websites like Digi-Key and Avnet.
