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KA7915TU
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - Negative voltage regulator - Fixed output voltage of -15V - TO-220 package - Essential component for stabilizing and regulating voltage in electronic circuits - Packaging/Quantity: Typically sold in reels or tubes containing multiple units
Specifications
- Input Voltage Range: -17V to -35V
- Output Voltage: -15V
- Output Current: Up to 1A
- Dropout Voltage: 2V (maximum)
- Line Regulation: 0.05% (typical)
- Load Regulation: 0.1% (typical)
- Operating Temperature Range: -40°C to +125°C
Pin Configuration
The KA7915TU has three pins:
- Input Pin (VIN): Connects to the input voltage source (-17V to -35V).
- Ground Pin (GND): Connected to the ground reference of the circuit.
- Output Pin (VOUT): Provides the regulated -15V output.
Functional Features
- Voltage Regulation: The KA7915TU ensures a stable -15V output voltage, even with varying input voltages and load conditions.
- Short Circuit Protection: The IC includes internal protection mechanisms to prevent damage in case of a short circuit on the output side.
- Thermal Shutdown: If the temperature exceeds the safe operating limit, the IC shuts down to protect itself from overheating.
- Low Power Consumption: The KA7915TU consumes minimal power during operation, making it suitable for energy-efficient designs.
Advantages and Disadvantages
Advantages: - Reliable and accurate voltage regulation - Compact TO-220 package for easy integration into circuits - Short circuit and thermal protection enhance safety and durability - Low power consumption contributes to energy efficiency
Disadvantages: - Fixed output voltage limits flexibility in certain applications - Dropout voltage of 2V may not be suitable for low voltage systems
Working Principles
The KA7915TU is a negative voltage regulator based on the linear regulator architecture. It utilizes a series pass transistor to regulate the output voltage. The internal circuitry compares the output voltage with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable -15V output.
Application Field Plans
The KA7915TU finds application in various electronic circuits where a stable -15V voltage source is required. Some common application areas include: - Power supplies for audio amplifiers - Industrial control systems - Instrumentation circuits - Automotive electronics - Telecommunications equipment
Alternative Models
Several alternative models are available that offer similar functionality to the KA7915TU. These include: - LM7915: Negative voltage regulator with -15V fixed output voltage - MC7915: Negative voltage regulator with -15V fixed output voltage - UA7915: Negative voltage regulator with -15V fixed output voltage
These alternatives can be considered based on specific requirements and availability.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací KA7915TU v technických řešeních
Sure! Here are 10 common questions and answers related to the application of KA7915TU in technical solutions:
Q: What is KA7915TU? A: KA7915TU is a voltage regulator IC that provides a fixed negative output voltage of -15V.
Q: What is the input voltage range for KA7915TU? A: The input voltage range for KA7915TU is typically between -17V to -35V.
Q: What is the maximum output current of KA7915TU? A: The maximum output current of KA7915TU is 1A.
Q: Can KA7915TU be used in both AC and DC applications? A: Yes, KA7915TU can be used in both AC and DC applications.
Q: Is KA7915TU suitable for high-power applications? A: No, KA7915TU is not suitable for high-power applications as it has a maximum output current of 1A.
Q: Does KA7915TU require any external components for operation? A: Yes, KA7915TU requires input and output capacitors for stable operation.
Q: Can KA7915TU handle overvoltage protection? A: No, KA7915TU does not have built-in overvoltage protection. External protection circuitry may be required.
Q: Can KA7915TU be used in automotive applications? A: Yes, KA7915TU can be used in automotive applications as long as the operating conditions are within its specified range.
Q: What is the typical dropout voltage of KA7915TU? A: The typical dropout voltage of KA7915TU is around 2V.
Q: Can KA7915TU be used in parallel to increase the output current? A: No, KA7915TU should not be used in parallel as it may cause stability issues.