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SG3525 Pulse Width Modulator

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Stock: 17
Availability: InStock priceValidUntil: 2026-07-11
SKU: 382 | DAA415

Rs. 41.30 (inc GST)
Rs.35.00 + GST

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GST Invoice: Available for all purchases; eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com

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Description

SG3525 Pulse Width Modulator

There are numerous Pulse Width Modulation (PWM) controllers available that make the use and application of PWM quite easy.

One of the most popular of such controllers is the versatile and ubiquitous SG3525 produced by multiple manufacturers – ST Microelectronics, Fairchild Semiconductors, On Semiconductors, to name a few.

The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. The on−chip +5.1 V reference is trimmed to 1% and the error amplifier has an input common−mode voltage range that includes the reference voltage, thus eliminating the need for external divider resistors. A sync input to the oscillator enables multiple units to be slaved or a single unit to be synchronized to an external system clock. A wide range of dead time can be programmed by a single resistor connected between the CT and Discharge pins. This device also features built−in soft−start circuitry, requiring only an external timing capacitor. A shutdown pin controls both the soft−start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft−start recycle with longer shutdown commands. The under voltage lockout inhibits the outputs

and the changing of the soft−start capacitor when VCC is below nominal. The output stages are totem−pole design capable of sinking and sourcing in excess of 200 mA. The output stage of the SG3525A features NOR logic resulting in a low output for an off−state.

Features of SG3525

8.0 V to 35 V Operation
5.1 V +- 1.0% Trimmed Reference
100 Hz to 400 kHz Oscillator Range
Separate Oscillator Sync Pin
Adjustable Deadtime Control
Input Undervoltage Lockout
Latching PWM to Prevent Multiple Pulses
Pulse−by−Pulse Shutdown
Dual Source/Sink Outputs: +-400 mA Peak

Application of SG3525

Motor Control
DC-DC Convertor
DC-AC Inverter
Lamp Dimmers

Extra Information
Country of Origin	China
Imported By	ElectroSource Private Limited

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SG3525 Pulse Width Modulator

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SG3525 Pulse Width Modulator

One of the most popular of such controllers is the versatile and ubiquitous SG3525 produced by multiple manufacturers – ST Microelectronics, Fairchild Semiconductors, On Semiconductors, to name a few.

and the changing of the soft−start capacitor when VCC is below nominal. The output stages are totem−pole design capable of sinking and sourcing in excess of 200 mA. The output stage of the SG3525A features NOR logic resulting in a low output for an off−state.

Features of SG3525

8.0 V to 35 V Operation

5.1 V +- 1.0% Trimmed Reference

100 Hz to 400 kHz Oscillator Range

Separate Oscillator Sync Pin

Adjustable Deadtime Control

Input Undervoltage Lockout

Latching PWM to Prevent Multiple Pulses

Pulse−by−Pulse Shutdown

Dual Source/Sink Outputs: +-400 mA Peak

Application of SG3525

Motor ControlDC-DC ConvertorDC-AC InverterLamp Dimmers

Write a review

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Motor Control
DC-DC Convertor
DC-AC Inverter
Lamp Dimmers