SG1526BJ-883B

Product Overview

Category

SG1526BJ-883B belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power supply applications.

Characteristics

• High precision voltage reference
• Adjustable frequency oscillator
• Error amplifier
• Pulse width modulator (PWM)
• Output driver

Package

SG1526BJ-883B is available in a 16-pin ceramic dual in-line package (CDIP).

Essence

The essence of SG1526BJ-883B lies in its ability to regulate and control power supply voltages efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 25 units per package.

Specifications

• Input Voltage Range: 8V - 35V
• Output Voltage Range: 5V - 30V
• Maximum Output Current: 500mA
• Operating Temperature Range: -55°C to +125°C
• Frequency Range: 50kHz - 1MHz

Detailed Pin Configuration

1. VREF: Voltage Reference Output
2. COMP: Error Amplifier Output
3. INV: Inverting Input of Error Amplifier
4. NONINV: Non-Inverting Input of Error Amplifier
5. OSC: Oscillator Timing Capacitor Connection
6. CT: Oscillator Timing Resistor Connection
7. RT: Oscillator Timing Resistor Connection
8. GND: Ground
9. VCC: Positive Power Supply
10. OUT: PWM Output
11. SYNC: Synchronization Input
12. DEAD: Dead Time Control Input
13. FB: Feedback Input
14. VFB: Feedback Voltage Output
15. NC: No Connection
16. NC: No Connection

Functional Features

• Precise voltage regulation
• Adjustable frequency for optimal performance
• Error amplifier for accurate feedback control
• Pulse width modulation for efficient power delivery
• Output driver for driving external components

Advantages and Disadvantages

Advantages

• High precision voltage reference ensures stable output voltages.
• Adjustable frequency allows customization for specific applications.
• Error amplifier provides precise feedback control, minimizing errors.
• Pulse width modulation enables efficient power transfer.
• Output driver can handle external loads effectively.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

SG1526BJ-883B operates by comparing the feedback voltage with a precise internal reference. The error amplifier amplifies the difference between the two voltages, which is then fed into the pulse width modulator. The pulse width modulator generates a series of pulses with varying widths based on the amplified error signal. These pulses control the switching of the power supply, regulating the output voltage. The adjustable frequency oscillator determines the switching frequency, allowing optimization for different applications.

Detailed Application Field Plans

SG1526BJ-883B finds extensive use in various power supply applications, including: 1. Switching power supplies 2. DC-DC converters 3. Battery chargers 4. LED drivers 5. Industrial control systems

Detailed and Complete Alternative Models

1. SG3526N: Similar functionality with slightly different pin configuration.
2. UC1526AJ: Comparable features with alternative packaging options.
3. TL494CN: Widely used alternative with similar specifications.

These alternative models offer similar functionality and can be considered as replacements for SG1526BJ-883B in various applications.

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