AZ7500EP-E1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance PWM Controller
• Package: SOP-8
• Essence: The AZ7500EP-E1 is a high-performance PWM controller designed for power management applications. It provides precise control over the output voltage and current, making it suitable for various power supply designs.
• Packaging/Quantity: The AZ7500EP-E1 is available in a SOP-8 package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage: 8V to 35V
• Output Voltage: Adjustable from 1.23V to 30V
• Output Current: Up to 500mA
• Switching Frequency: 50kHz to 1MHz
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The AZ7500EP-E1 has eight pins arranged as follows:

1. COMP: Compensation pin for feedback control loop.
2. CS: Current sense input pin for current limit protection.
3. GND: Ground reference pin.
4. FB: Feedback pin for voltage regulation.
5. VCC: Supply voltage input pin.
6. OUT: Output pin for regulated voltage.
7. RT: Timing resistor connection pin.
8. CT: Timing capacitor connection pin.

Functional Features

• Precise Voltage Regulation: The AZ7500EP-E1 offers accurate voltage regulation with adjustable output voltage ranging from 1.23V to 30V.
• Current Limit Protection: The CS pin allows for current sensing and enables current limit protection, preventing damage to the circuit.
• Wide Input Voltage Range: With an input voltage range of 8V to 35V, the AZ7500EP-E1 can be used in various power supply applications.
• High Switching Frequency: The device supports a wide range of switching frequencies from 50kHz to 1MHz, allowing for efficient power conversion.

Advantages and Disadvantages

Advantages: - Precise voltage regulation - Current limit protection - Wide input voltage range - High switching frequency

Disadvantages: - Limited output current (up to 500mA)

Working Principles

The AZ7500EP-E1 operates based on the principle of pulse width modulation (PWM). It compares the feedback voltage with a reference voltage to generate a control signal that adjusts the duty cycle of the output waveform. By varying the duty cycle, the output voltage is regulated accordingly. The CS pin monitors the current flowing through the circuit and triggers current limit protection if it exceeds a set threshold.

Detailed Application Field Plans

The AZ7500EP-E1 is commonly used in the following applications:

1. Switching Power Supplies: The precise voltage regulation and high switching frequency make it suitable for designing efficient switching power supplies.
2. LED Lighting: The IC can be utilized in LED driver circuits to provide stable and regulated power for lighting applications.
3. Battery Chargers: With its adjustable output voltage and current limit protection, the AZ7500EP-E1 is ideal for designing battery charging circuits.

Detailed and Complete Alternative Models

1. LM2576: A popular PWM controller with similar features and specifications.
2. UC3843: Another widely used PWM controller suitable for power management applications.
3. LT1241: A high-performance PWM controller offering advanced protection features.

These alternative models can be considered as substitutes for the AZ7500EP-E1, depending on specific requirements and design constraints.

In conclusion, the AZ7500EP-E1 is a high-performance PWM controller designed for power management applications. Its precise voltage regulation, current limit protection, and wide input voltage range make it a versatile choice for various power supply designs. With its compact SOP-8 package, the AZ7500EP-E1 offers an efficient solution for applications such as switching power supplies, LED lighting, and battery chargers.