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AZ494AUM-E1
Product Overview
Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: High efficiency, low dropout voltage
Package: TO-220, TO-263
Essence: Regulates input voltage to a stable output voltage
Packaging/Quantity: Tube/50 units, Tape & Reel/2500 units
Specifications
- Input Voltage Range: 4.5V to 18V
- Output Voltage Range: 1.25V to 16V
- Maximum Output Current: 5A
- Dropout Voltage: 0.6V at 5A
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The AZ494AUM-E1 has a standard 5-pin configuration: 1. VIN (Input Voltage) 2. GND (Ground) 3. VOUT (Output Voltage) 4. ADJ (Adjustment) 5. NC (No Connection)
Functional Features
- Low dropout voltage
- Fast transient response
- Thermal shutdown protection
- Overcurrent protection
Advantages and Disadvantages
Advantages: - High efficiency - Wide input voltage range - Excellent line and load regulation
Disadvantages: - Higher cost compared to traditional linear regulators - Requires external capacitors for stability
Working Principles
The AZ494AUM-E1 utilizes a feedback control loop to maintain a constant output voltage despite changes in input voltage and load current. It employs a PNP pass transistor to achieve low dropout voltage and high efficiency.
Detailed Application Field Plans
The AZ494AUM-E1 is suitable for various applications including: - Battery-powered devices - Industrial power supplies - Automotive electronics - Distributed power systems
Detailed and Complete Alternative Models
- LM2940 - Low dropout voltage regulator
- LT1086 - Adjustable voltage regulator with high current capability
- TPS7A47 - High-voltage, low-noise, low-dropout regulator
In conclusion, the AZ494AUM-E1 is a versatile voltage regulator with high efficiency and low dropout voltage, making it suitable for a wide range of applications.
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技術ソリューションにおける AZ494AUM-E1 の適用に関連する 10 件の一般的な質問と回答をリストします。
What is AZ494AUM-E1?
- AZ494AUM-E1 is a voltage mode PWM controller designed for power supply applications.
What are the key features of AZ494AUM-E1?
- The key features include a wide input voltage range, adjustable switching frequency, and overcurrent protection.
What is the typical application of AZ494AUM-E1?
- It is commonly used in offline flyback converters, LED drivers, and other power supply solutions.
How do I set the switching frequency for AZ494AUM-E1?
- The switching frequency can be adjusted using an external resistor and capacitor connected to the RT/CT pin.
What is the maximum operating voltage for AZ494AUM-E1?
- The maximum operating voltage is typically around 30V.
Does AZ494AUM-E1 have built-in overcurrent protection?
- Yes, it has overcurrent protection to safeguard the circuit from excessive current.
Can AZ494AUM-E1 be used in automotive applications?
- Yes, it can be used in automotive applications with proper consideration of environmental factors.
What is the efficiency of AZ494AUM-E1 in power supply applications?
- The efficiency can vary based on the specific design and operating conditions, but it is generally high when properly implemented.
Is there a recommended layout for using AZ494AUM-E1 in a PCB design?
- Yes, the datasheet provides guidelines for the recommended layout to optimize performance and minimize noise.
Are there any known issues or limitations when using AZ494AUM-E1 in technical solutions?
- Some common considerations include thermal management, component selection, and EMI mitigation, which should be addressed during the design process.