SG3526BDW

Product Overview

• Category: Integrated Circuit (IC)
• Use: PWM Controller
• Characteristics: High-performance, versatile, and reliable
• Package: SOIC-16
• Essence: The SG3526BDW is a PWM controller IC that provides precise control of pulse width modulation signals.
• Packaging/Quantity: Available in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage: 8V to 35V
• Output Voltage: 5V to 35V
• Operating Temperature: -40°C to +85°C
• Frequency Range: 100Hz to 500kHz
• Duty Cycle Range: 0% to 100%
• Output Current: Up to 200mA

Pin Configuration

The SG3526BDW has a total of 16 pins. Here is the detailed pin configuration:

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. CS: Current sense input
4. RT/CT: Timing resistor/capacitor connection
5. DIS: Shutdown control input
6. GND: Ground
7. OSC: Oscillator timing capacitor connection
8. SYNC: Synchronization input
9. CT: Timing capacitor connection
10. RT: Timing resistor connection
11. VCC: Positive power supply
12. OUT: Output
13. FB: Feedback input
14. INV: Inverting input
15. NC: No connection
16. NC: No connection

Functional Features

• Precise control of pulse width modulation signals
• Adjustable frequency and duty cycle
• Error amplifier for feedback control
• Current sensing for overcurrent protection
• Shutdown control for power saving
• Synchronization input for multiple ICs

Advantages and Disadvantages

Advantages: - High-performance PWM control - Versatile application possibilities - Reliable operation in various conditions - Wide input and output voltage range - Overcurrent protection

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

Working Principles

The SG3526BDW operates based on the principle of pulse width modulation. It generates a precise square wave signal with adjustable frequency and duty cycle. The error amplifier compares the feedback voltage with the reference voltage, allowing precise control over the output signal. The current sense input provides overcurrent protection by monitoring the load current. The shutdown control input allows the IC to enter a low-power state when not in use.

Detailed Application Field Plans

The SG3526BDW finds applications in various fields, including:

1. Power supplies: Used in switch-mode power supplies to regulate the output voltage.
2. Motor control: Enables precise speed control in motor drives.
3. Lighting systems: Provides dimming control in LED lighting systems.
4. Battery chargers: Used to control the charging process in battery chargers.
5. Audio amplifiers: Enables efficient audio amplification with adjustable output.

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality:

1. TL494CN
2. UC3842AN
3. IRS2153D
4. SG3525AN
5. MC34063AP

These alternatives can be considered based on specific requirements and availability.

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