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

UC3843 Current Mode PWM Controller IC

  • Stock: 48

    Availability: InStock priceValidUntil: 2026-06-16

  • SKU: 3184 | DAD206

Availability: InStock priceValidUntil: 2026-06-16

  • Rs. 17.70 (inc GST)
    Rs.15.00 + 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.

UC3843 Current Mode PWM Controller IC

UC3843 PWM Controller IC for off-line applications with high gain error amplifier and precise duty cycle control.

The UC3843 Current Mode PWM Controller IC is designed for off-line and DC to DC converter applications. This IC features a trimmed oscillator for precise duty cycle control, ensuring effective power management. Its high gain error amplifier and adjustable UVLO thresholds provide stable operation under varying conditions, making it ideal for consumer electronics, industrial applications, and renewable energy systems. The compact design minimizes external components, enhancing reliability and efficiency in various electronic systems.

With the UC3843 Current Mode PWM Controller IC, you can achieve high performance even at a 100% duty cycle. The built-in current sensing comparator and high current totem pole output enable effective MOSFET driving, optimizing your power solutions. Explore how this versatile IC can enhance your projects today.

Incorporate the UC3843 Current Mode PWM Controller IC into your designs for reliable power management and improved efficiency. Its robust features make it a great choice for various applications in the electronics sector.

Discover reliable solutions with DNA, your trusted retailer for Power Devices. Explore the UC3843 Current Mode PWM Controller IC and see other products in the Power Devices category. Check other Power Devices that we have in stock.

Are you searching for specific electronic components? At DNA, we can help you find what you need. From Sensors to Analog ICs, Resistors to Connectors, and Diodes to Development Modules, we can support both retail and bulk orders. If we don’t have it in stock, we can import it for you. Contact Us.

Features of UC3843 Current Mode PWM Controller IC

  • High gain error amplifier
  • Adjustable UVLO thresholds
  • 100% duty cycle operation
  • Compact design
  • Effective MOSFET driving

Specification of UC3843 Current Mode PWM Controller IC

  • Temperature compensated reference
  • Current sensing comparator
  • Trimming oscillator

Applications of UC3843 Current Mode PWM Controller IC

  • Power management in consumer electronics
  • Industrial applications
  • Renewable energy systems

Package Includes

  • 1 X UC3843 Current Mode PWM Controller IC
Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (1)

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 long does delivery take?
Delivery time depends on your PIN code and the courier network. Tracking is shared after dispatch.
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.
What if a product is out of stock — can you arrange it?
Yes — contact us with the part number and required quantity. We’ll check availability or sourcing options.
Can you combine multiple orders into one shipment?
Often yes — if the first order hasn’t shipped. Send both order numbers and we’ll confirm.

NEW Products

Product Page : New Products

BCR8PM TRANSISTOR TO-220F (Insulated) Package

BCR8PM TRIAC Insulated Transistor for AC SwitchingBCR8PM TRIAC: 8A, 600V Insulated for general-purpo..

Rs.88.50 (inc GST)
Rs.75.00 + GST

SKU: 10009 | DAI999
Stock: 25

2 Pin 1.25mm JST Female Connector With Wire

JST 2-Pin 1.25mm Female Connector With Wire JST 2-Pin Female Connector with Wire for low-current ap..

Rs.17.94 (inc GST)
Rs.15.20 + GST

SKU: 9455 | DAI326
Stock: 18

MEANWELL LPH-18-24 AC-DC voltage LED Driver SMPS

Meanwell LPH-18-24 DIN Rail Power Supply Meanwell LPH-18-24 AC-DC power supply with high efficiency..

Rs.744.58 (inc GST)
Rs.631.00 + GST

SKU: 7569 | DAD651
Stock: 10

ZMCT118G 5 Ampere Current Transformer – PCB Mounting

ZMCT118G Current Transformer for PCB Mounting ZMCT118G 5A Current Transformer – Accurate AC current..

Rs.88.26 (inc GST)
Rs.74.80 + GST

SKU: 7051 | DAH014
Stock: 40

Have You Seen

Product Page : Have You Seen

ASAIR DHT20 SIP Packaged Temperature and Humidity Sensor

ASAIR DHT20 SIP Packaged Temperature and Humidity SensorDHT20 SIP Sensor for temperature and humidit..

Rs.97.70 (inc GST)
Rs.82.80 + GST

SKU: 10393 | DAJ376
Stock: 28

2 Pin Mini Jumper 2.54 mm Closed Type

2 Pin Closed Type Jumper Connector 2-PIN female jumper, 2.54 mm pitch, 2 Ampere current rating, ide..

Rs.0.59 (inc GST)
Rs.0.50 + GST

SKU: 2720 | DAB710
Stock: 300

SP6648HF Switching Voltage Regulators Ultra-low Quiescent High Efficiency SMD IC

SP6648HF Switching Voltage Regulator High Efficiency SMD IC SP6648HF Voltage Regulator IC with ultra..

Rs.120.71 (inc GST)
Rs.102.30 + GST

SKU: 8133 | DAH637
Stock: 8

Soldron 25W Black Ceramic Coated Spade Long Life Delux Bit

Soldron 25W Black Ceramic Coated Soldering Delux Bit Soldron 25W Bit for soldering with black cerami..

Rs.162.25 (inc GST)
Rs.137.50 + GST

SKU: 2361 | DAC110
Stock: 12

Related Products

BC547 NPN TRANSISTORS

BC547 NPN TRANSISTORS

BC547 NPN Transistor BC547 NPN Transistor for switching and amplification with high current gain an..

Rs.2.00 (inc GST)
Rs.1.69 + GST

SKU: 119 | DAA381
Stock: 5
Atmega32A-AU SMD Microcontroller

Atmega32A-AU SMD Microcontroller

Atmel ATmega32A-AU SMD Microcontroller ATmega32A-AU Microcontroller, 32kB Flash, 2kB SRAM, JTAG inte..

Rs.165.20 (inc GST)
Rs.140.00 + GST

SKU: 2870 | DAE515
Stock: 20
UC3843 Current Mode PWM Controller IC

UC3843 Current Mode PWM Controller IC

UC3843 Current Mode PWM Controller ICUC3843 PWM Controller IC for off-line applications with high ga..

Rs.17.70 (inc GST)
Rs.15.00 + GST

SKU: 3184 | DAD206
Stock: 48
REF02HP +5V Precision Voltage Reference

REF02HP +5V Precision Voltage Reference

REF02HP +5V Precision Voltage ReferenceREF02HP Voltage Reference +5V, 10ppm/°C drift, 1mA current dr..

Rs.404.74 (inc GST)
Rs.343.00 + GST

SKU: 3187 | DAD227
Stock: 0
SP3232EEN RS232 Transceiver IC

SP3232EEN RS232 Transceiver IC

SP3232EEN RS232 Transceiver IC SP3232EEN RS232 Transceiver IC with 3.0V to 5.5V operation, low power..

Rs.31.86 (inc GST)
Rs.27.00 + GST

SKU: 3790 | DAG498
Stock: 100
MCP4921T 12 Bit Digital to Analog Converter SMD IC

MCP4921T 12 Bit Digital to Analog Converter SMD IC

MCP4921T Digital to Analog Converter SMD ICMCP4921T DAC IC with SPI interface, low power, rail-to-ra..

Rs.300.90 (inc GST)
Rs.255.00 + GST

SKU: 9192 | DAD981
Stock: 20
TPS54286 Buck Converter IC

TPS54286 Buck Converter IC

TPS54286 Buck Converter ICTPS54286 SMD Buck Converter for 2-A output applications with 4.5-V to 28-V..

Rs.322.97 (inc GST)
Rs.273.70 + GST

SKU: 10431 | DAJ472
Stock: 2