SG3526N

Product Overview

Category: Integrated Circuit (IC)
Use: Voltage Mode PWM Controller
Characteristics: High-performance, versatile, and reliable
Package: DIP-16 (Dual In-line Package with 16 pins)
Essence: Regulates the output voltage of power supplies
Packaging/Quantity: Available in reels or tubes, quantity varies based on supplier

Specifications

Input Voltage Range: 8V to 35V
Output Voltage Range: 5V to 30V
Operating Temperature: -40°C to +85°C
Frequency Range: 100Hz to 500kHz
Maximum Duty Cycle: 50%
Output Current: Up to 200mA

Detailed Pin Configuration

VREF: Reference voltage input
COMP: Error amplifier output
CS: Current sense input
RT/CT: Timing resistor/capacitor connection
DIS: Shutdown control input
GND: Ground reference
OSC: Oscillator timing capacitor connection
SYNC: Synchronization input
OUT: Output pin
VCC: Positive supply voltage
FB: Feedback input
INV: Inverting input
NC: No connection
NC: No connection
NC: No connection
NC: No connection

Functional Features

Provides precise regulation of output voltage
Offers adjustable frequency and duty cycle control
Supports soft-start and shutdown functions
Includes error amplifier for accurate feedback control
Allows synchronization with external signals

Advantages and Disadvantages

Advantages: - High-performance and reliable operation - Versatile and suitable for various applications - Precise voltage regulation - Adjustable frequency and duty cycle

Disadvantages: - Limited output current capacity (up to 200mA) - Requires external components for complete functionality

Working Principles

The SG3526N is a voltage mode PWM controller that regulates the output voltage of power supplies. It operates by comparing a feedback signal from the output with a reference voltage. The error amplifier amplifies the difference between these two signals, which is then used to control the duty cycle of the PWM signal. By adjusting the duty cycle, the output voltage can be regulated accurately.

Detailed Application Field Plans

The SG3526N finds applications in various fields, including:

Power Supply Units (PSUs): Used in switch-mode power supplies to regulate the output voltage efficiently.
Battery Chargers: Controls the charging process by maintaining a constant output voltage.
Inverters: Enables the conversion of DC power to AC power with precise voltage regulation.
LED Drivers: Provides accurate control of LED brightness by regulating the output voltage.
Motor Speed Control: Used in motor drive circuits to adjust the speed of motors accurately.

Detailed and Complete Alternative Models

TL494: Similar voltage mode PWM controller with adjustable frequency and duty cycle control.
UC3842: Integrated circuit designed for high-performance off-line power supply applications.
IRS2153D: PWM driver IC with integrated high-voltage half-bridge gate driver.

These alternative models offer similar functionalities and can be used as substitutes for the SG3526N in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SG3526N v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SG3526N in technical solutions:

Q: What is SG3526N? A: SG3526N is a pulse width modulation (PWM) controller IC commonly used in power supply applications.
Q: What are the key features of SG3526N? A: Some key features of SG3526N include adjustable frequency, duty cycle control, soft-start capability, and built-in error amplifier.
Q: How does SG3526N help in power supply applications? A: SG3526N provides precise control over the output voltage and current of a power supply by regulating the PWM signals.
Q: Can SG3526N be used for both AC and DC power supplies? A: Yes, SG3526N can be used for both AC and DC power supplies as it supports a wide input voltage range.
Q: What is the maximum operating frequency of SG3526N? A: The maximum operating frequency of SG3526N is typically around 400 kHz.
Q: How can I adjust the output voltage using SG3526N? A: The output voltage can be adjusted by varying the duty cycle of the PWM signal generated by SG3526N.
Q: Does SG3526N have any protection features? A: Yes, SG3526N includes various protection features like overcurrent protection, overvoltage protection, and thermal shutdown.
Q: Can SG3526N be used in battery charging applications? A: Yes, SG3526N can be used in battery charging applications by controlling the charging current and voltage.
Q: Is it possible to synchronize multiple SG3526N controllers? A: Yes, multiple SG3526N controllers can be synchronized by using an external synchronization signal.
Q: What are some common applications of SG3526N? A: Some common applications of SG3526N include power inverters, uninterruptible power supplies (UPS), battery chargers, and motor speed control circuits.

Please note that the answers provided here are general and may vary depending on specific circuit designs and requirements.