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.

Word count: 298

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AZ494AUM-E1 v technických řešeních

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.