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L7986TA
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent and thermal protection - Wide input voltage range
Package: TO-220
Essence: The L7986TA is a voltage regulator IC designed to provide a stable output voltage from a varying input voltage source.
Packaging/Quantity: The L7986TA is available in a TO-220 package. It is typically sold in reels or tubes containing multiple units.
Specifications
- Input Voltage Range: 4.5V to 38V
- Output Voltage Range: 0.8V to 20V
- Maximum Output Current: 3A
- Dropout Voltage: 300mV at 3A
- Quiescent Current: 100µA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The L7986TA has the following pin configuration:
- VIN: Input voltage pin
- GND: Ground pin
- EN: Enable pin (active high)
- FB: Feedback pin for output voltage regulation
- VOUT: Output voltage pin
Functional Features
- High Efficiency: The L7986TA utilizes advanced circuitry to achieve high efficiency, minimizing power losses.
- Low Dropout Voltage: The regulator maintains a low dropout voltage even under high load conditions, ensuring stable output voltage.
- Adjustable Output Voltage: The output voltage can be adjusted within a wide range using external resistors.
- Overcurrent and Thermal Protection: The IC incorporates protection mechanisms to prevent damage due to overcurrent and excessive temperature.
- Wide Input Voltage Range: The L7986TA can operate with input voltages ranging from 4.5V to 38V, making it suitable for various applications.
Advantages and Disadvantages
Advantages: - High efficiency leads to reduced power consumption. - Adjustable output voltage allows flexibility in different applications. - Overcurrent and thermal protection ensure the safety of the circuit and connected components. - Wide input voltage range enables compatibility with a variety of power sources.
Disadvantages: - The TO-220 package may require additional heat sinking for high-power applications. - Limited maximum output current of 3A may not be sufficient for certain high-current applications.
Working Principles
The L7986TA is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB pin) with a reference voltage to adjust the pass transistor's conduction, maintaining a stable output voltage regardless of input variations.
Detailed Application Field Plans
The L7986TA is commonly used in various applications, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Battery-powered devices - Distributed power systems - Telecommunications equipment
Detailed and Complete Alternative Models
Some alternative models to the L7986TA include: - LM317: Adjustable voltage regulator with similar characteristics - LT1084: Low dropout positive adjustable voltage regulator - TPS7A47: High-voltage, low-dropout linear regulator
These alternative models offer similar functionality and can be considered based on specific application requirements.
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Énumérez 10 questions et réponses courantes liées à l'application de L7986TA dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of L7986TA in technical solutions:
Q: What is L7986TA? A: L7986TA is a high-efficiency step-down switching regulator designed for use in various technical applications.
Q: What is the input voltage range of L7986TA? A: The input voltage range of L7986TA is typically between 4.5V and 38V.
Q: What is the output voltage range of L7986TA? A: The output voltage range of L7986TA can be adjusted from 0.8V to VIN.
Q: What is the maximum output current of L7986TA? A: The maximum output current of L7986TA is typically 3A.
Q: Is L7986TA suitable for battery-powered applications? A: Yes, L7986TA is suitable for battery-powered applications as it has a low quiescent current and supports pulse skipping mode for improved efficiency.
Q: Does L7986TA have built-in protection features? A: Yes, L7986TA includes built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.
Q: Can L7986TA operate in a wide temperature range? A: Yes, L7986TA is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Can L7986TA be used in automotive applications? A: Yes, L7986TA is qualified for automotive applications and meets the relevant industry standards.
Q: Does L7986TA require external compensation components? A: No, L7986TA features internal compensation, eliminating the need for external components.
Q: What package options are available for L7986TA? A: L7986TA is available in different package options, such as PowerSO-10 and HTSSOP-16, providing flexibility for various design requirements.
Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.