Overview
The TL431LP-AP, produced by Micro Commercial Co, is a programmable precision shunt regulator. This component is highly versatile and is known for its high performance and affordability. It operates within a voltage range of 2.5V to 36V and supports a wide operating current range of 1 to 100 mA. The TL431LP-AP is widely used in various applications due to its adjustable output voltage, low dynamic impedance, and effective temperature compensation, making it suitable for a broad range of electronic designs.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Reference Input Voltage | Vref | 2.44 | 2.55 | V | |
| Deviation of Reference Input Voltage | △Vref / △T | 4.5 | 17 | mV | |
| Reference Input Current | Iref | 1.5 | 4.0 | μA | |
| Deviation of Reference Input Current Over Full Temperature Range | △Iref / △T | 0.4 | 1.2 | μA | |
| Minimum Cathode Current for Regulation | IKA(min) | 0.45 | 1.0 | mA | |
| Off-State Cathode Current | IKA(off) | 0.05 | 1.0 | μA | |
| Dynamic Impedance | ZKA | 0.15 | 0.5 | Ω | |
| Operating Junction Temperature | Topr | 0 | 70 | °C | |
| Storage Temperature Range | TSTG | -55 | 150 | °C | |
| Power Dissipation | PD | 0.77 | W | ||
| Thermal Resistance junction to ambient | RθJA | 162 | ℃/W |
Key Features
- Adjustable Output Voltage: The TL431LP-AP allows the output voltage to be adjusted from 2.5V to 36V using two external resistors, providing precise voltage regulation.
- Wide Operating Current Range: Supports a current range of 1 to 100 mA, making it suitable for diverse applications.
- Low Dynamic Impedance: Features a dynamic impedance of 0.15 to 0.5 Ω, ensuring minimal resistance at the output and stable voltage regulation.
- Effective Temperature Compensation: Maintains stability over a wide temperature range of -40°C to +125°C, ensuring consistent performance in various environmental conditions.
- High Precision Voltage Regulation: Available with voltage precision options of 1% and 2%, making it suitable for applications requiring exact voltage references.
- Robust and Reliable: Meets the AEC-Q100 standard, ensuring durability and reliability in demanding automotive and industrial environments.
- Lead Free and RoHS Compliant: Available with a lead-free finish and RoHS compliant, making it suitable for modern electronic designs.
Applications
- Precision Switching Power Supplies: Used in precision switching power supplies due to its adjustable output voltage and low dynamic impedance.
- Linear Regulated Power Supplies: Employed in linear regulated power supplies for stable and precise voltage regulation.
- Voltage Comparators and Power Supply Monitors: Utilized in voltage comparators and power supply monitors due to its high precision and stability.
- Delay Circuits and Constant Current Sources: Used in delay circuits and as constant current sources in various electronic designs.
- Automotive Systems: Extensively used in automotive electronics such as Engine Control Units (ECUs), electric power steering systems, and battery management systems.
- Industrial Automation Systems: Applied in industrial automation systems, motor control, and sensor interfacing due to its precision and reliability under fluctuating environmental conditions).
Q & A
- What is the adjustable output voltage range of the TL431LP-AP?
The TL431LP-AP allows the output voltage to be adjusted from 2.5V to 36V using two external resistors.
- What is the operating current range of the TL431LP-AP?
The TL431LP-AP supports a current range of 1 to 100 mA).
- What is the dynamic impedance of the TL431LP-AP?
The dynamic impedance of the TL431LP-AP is between 0.15 to 0.5 Ω).
- What is the operating temperature range of the TL431LP-AP?
The TL431LP-AP operates within a temperature range of -40°C to +125°C).
- Is the TL431LP-AP RoHS compliant?
- What are some common applications of the TL431LP-AP?
The TL431LP-AP is used in precision switching power supplies, linear regulated power supplies, voltage comparators, power supply monitors, delay circuits, and constant current sources. It is also used in automotive and industrial automation systems).
- What is the significance of the TL431LP-AP meeting the AEC-Q100 standard?
- How does the TL431LP-AP ensure temperature stability?
- What is the minimum cathode current required for regulation in the TL431LP-AP?
- What is the off-state cathode current of the TL431LP-AP?
