Microsemi Corporation
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SG1526J-883B
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SG1526J-883B

Product Overview

Category

SG1526J-883B belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

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

Package

SG1526J-883B is available in a 16-pin ceramic dual in-line package (CDIP).

Essence

The essence of SG1526J-883B lies in its ability to regulate and control the output voltage of power supplies efficiently.

Packaging/Quantity

SG1526J-883B is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

  • Input Voltage Range: 8V to 35V
  • Output Voltage Range: 5V to 30V
  • Maximum Output Current: 200mA
  • Operating Temperature Range: -55°C to +125°C
  • Frequency Range: 50kHz to 500kHz

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 Supply Voltage
  10. SYNC: Synchronization Input
  11. PWM: Pulse Width Modulated Output
  12. DTC: Dead Time Control
  13. CTR: Current Transformer Ratio
  14. OUT: Output
  15. FB: Feedback Input
  16. NC: No Connection

Functional Features

  • Precise voltage regulation
  • Adjustable frequency for optimal performance
  • Error amplifier ensures accurate feedback control
  • Pulse width modulation for efficient power conversion
  • Dead time control for minimizing switching losses

Advantages and Disadvantages

Advantages

  • High precision voltage reference improves output accuracy
  • Adjustable frequency allows flexibility in design
  • Error amplifier enhances stability and regulation
  • Pulse width modulation enables efficient power conversion

Disadvantages

  • Limited maximum output current of 200mA
  • Operating temperature range may not be suitable for extreme environments

Working Principles

SG1526J-883B operates by comparing the feedback voltage from the output with a precise internal reference. The error amplifier amplifies the difference between these voltages, which is then fed into the pulse width modulator. The pulse width modulator generates a signal that controls the duty cycle of the output waveform, regulating the output voltage accordingly.

Detailed Application Field Plans

SG1526J-883B finds applications in various power supply systems, including: - Switching power supplies - Battery chargers - DC-DC converters - Uninterruptible power supplies (UPS) - LED drivers

Detailed and Complete Alternative Models

Some alternative models to SG1526J-883B include: - SG3526J-883B - TL494CN - UC3842AN - LT1241CN8 - MC34063AP1G

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af SG1526J-883B i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of SG1526J-883B in technical solutions:

  1. Q: What is SG1526J-883B? A: SG1526J-883B is a voltage-mode PWM (Pulse Width Modulation) controller IC used in power supply applications.

  2. Q: What are the key features of SG1526J-883B? A: Some key features include adjustable frequency, soft-start capability, current limiting, and high output drive capability.

  3. Q: How can SG1526J-883B be used in power supply designs? A: SG1526J-883B can be used as a control element in various power supply topologies such as flyback, forward, and push-pull converters.

  4. Q: What is the operating voltage range of SG1526J-883B? A: The operating voltage range is typically between 8V and 35V.

  5. Q: Can SG1526J-883B handle high currents? A: Yes, SG1526J-883B has a high output drive capability, allowing it to handle higher currents.

  6. Q: Does SG1526J-883B have protection features? A: Yes, SG1526J-883B includes features like overcurrent protection and thermal shutdown to protect the circuit from damage.

  7. Q: How can I adjust the frequency of SG1526J-883B? A: The frequency can be adjusted by changing the values of external timing components connected to the IC.

  8. Q: Can SG1526J-883B be used in battery-powered applications? A: Yes, SG1526J-883B can be used in battery-powered applications as long as the input voltage is within its operating range.

  9. Q: Are there any application notes or reference designs available for SG1526J-883B? A: Yes, the manufacturer usually provides application notes and reference designs that can help in implementing SG1526J-883B in various applications.

  10. Q: Where can I purchase SG1526J-883B? A: SG1526J-883B can be purchased from authorized distributors or directly from the manufacturer's website.