Product Images are shown for illustrative purposes only and may differ from actual product.

SG3525 Pulse Width Modulator

  • Stock: 17

    Availability: InStock priceValidUntil: 2026-08-14

  • SKU: 382 | DAA415

Availability: InStock priceValidUntil: 2026-08-14

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

    Qty :

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

Import Service: We import a wide range of electronic components on request.

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

Reviews (0)

Write a review

Note: HTML is not translated!
    Bad           Good
CAPTCHA verification code

Frequently Asked Questions

Do you provide a GST bills?
Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
What is your return / replacement policy?
Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
How do I track my shipment?
After dispatch, you’ll receive a tracking link/number via email/WhatsApp/SMS (as applicable).
I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
How can I contact you for support, sales, or bulk orders?
Use the Contact Us page or email/phone mentioned on the website with your part number and requirement.
Can I return a component if I ordered the wrong value/package?
If the item is unused and in original packaging, we’ll check eligibility case-by-case. Some items may be non-returnable depending on category/condition.

NEW Products

Product Page : New Products

Ra-02 SX1278 LoRa Wireless Transmission Module

Ra-02 SX1278 LoRa Wireless Transmission ModuleSX1278 LoRa Module Ra-02 for long-range wireless commu..

Rs.445.90 (inc GST)
Rs.377.88 + GST

SKU: 10283 | DAJ056
Stock: 5

CR2032 VERTICAL BATTERY HOLDER

CR2032 Vertical Battery Holder CR2032 vertical battery holder designed for 20mm coin cells, accommod..

Rs.15.34 (inc GST)
Rs.13.00 + GST

SKU: 158 | DAB164
Stock: 50

XL2576 5.0volt 52Khz Step-Down DC-DC Converter TO-263 IC

XL2576 Step-Down DC-DC Converter IC for Efficient Power Supply XL2576 Step-Down DC-DC Converter, 3A..

Rs.46.14 (inc GST)
Rs.39.10 + GST

SKU: 7257 | DAF755
Stock: 150

RED 12 mm 12V-24V Momentary Metal Switch Ring Indicator

RED Momentary Metal Switch Ring Indicator 12mm 12V-24V RED 12mm 12V-24V Momentary Metal Switch with ..

Rs.413.00 (inc GST)
Rs.350.00 + GST

SKU: 7435 | DAH228
Stock: 50

Have You Seen

Product Page : Have You Seen

4 Pin Male Right Angle Header 3.81 mm pitch (Combicon Connector)

Combicon 4 Pin Right Angle Male Header Connector XY-2500 F-B 3.81 series 4 Pin Right Angle Male con..

Rs.14.16 (inc GST)
Rs.12.00 + GST

SKU: 3012 | DAE739
Stock: 50

Nextion Intelligent NX8048P050-011C-Y 5.0" Capacitive Touchscreen Display

Nextion NX8048P050-011C-Y 5.0" Intelligent Capacitive HMI Display NX8048P050-011C-Y - 5.0" Capaciti..

Rs.8,946.76 (inc GST)
Rs.7,582.00 + GST

SKU: 2879 | DAE532
Stock: 20

DFRobot RS485 4-in-1 Soil Moisture, Temperature, pH & EC Sensor for Smart Agriculture (IP68, 5-30V)

DFRobot RS485 4-in-1 Soil Moisture, Temperature, pH & EC Sensor for Smart Agriculture (IP68, 5-3..

Rs.6,974.00 (inc GST)
Rs.5,910.17 + GST

SKU: 10375 | DAJ207
Stock: 5

PE68861 Pulse Transformer

PE68861 Pulse TransformerPE68861 Pulse TransformerFeatures of PE68861Dual SMT package contains both ..

Rs.105.02 (inc GST)
Rs.89.00 + GST

SKU: 884 | DAB572
Stock: 2

Related Products

Arduino Nano

Arduino Nano

Arduino Nano R3 with CH340 USB Interface Arduino Nano R3 Clone with CH340 chip; Compact design; Com..

Rs.219.57 (inc GST)
Rs.186.08 + GST

SKU: 486 | DAB267
Stock: 39
LM331 Voltage to Frequency Converter

LM331 Voltage to Frequency Converter

LM331 Voltage to Frequency ConverterThe voltage-to-frequency conversion techniques, and is easy to a..

Rs.38.35 (inc GST)
Rs.32.50 + GST

SKU: 810 | DAA070
Stock: 0
Thermal Printer with Serial Interface

Thermal Printer with Serial Interface

Thermal Printer with Serial InterfaceCSN-A1 Thermal Printer with TTL/RS232 InterfaceAdd a mini print..

Rs.2,076.80 (inc GST)
Rs.1,760.00 + GST

SKU: 945 | DAB804
Stock: 0
DS1307Z SOIC 8 RTC, Date Time Format (Day/Date/Month/Year, HH:MM:SS)

DS1307Z SOIC 8 RTC, Date Time Format (Day/Date/Month/Year, HH:MM:SS)

DS1307Z Real-Time Clock SOIC 8 IC DS1307Z RTC tracks time and date in HH:MM:SS format, with I2C inte..

Rs.57.82 (inc GST)
Rs.49.00 + GST

SKU: 7776 | DAB705
Stock: 62
TIP3055 NPN Power Transistor

TIP3055 NPN Power Transistor

TIP3055 NPN Power Transistor TIP3055 NPN Power Transistor designed for TO-247 package; Low thermal r..

Rs.58.94 (inc GST)
Rs.49.95 + GST

SKU: 8108 | DAH119
Stock: 0
ADR1399KHZ Shunt, Buried Zener Voltage Reference IC

ADR1399KHZ Shunt, Buried Zener Voltage Reference IC

ADR1399KHZ Shunt Buried Zener Voltage Reference IC ADR1399KHZ Voltage Reference IC, low noise, preci..

Rs.5,086.34 (inc GST)
Rs.4,310.46 + GST

SKU: 8964 | DAI303
Stock: 0