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

UC3843 Current Mode PWM Controller IC

  • Stock: 20

    Availability: InStock priceValidUntil: 2026-11-04

  • SKU: 3184 | DAD206

Availability: InStock priceValidUntil: 2026-11-04

  • 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.
Where are you located / where do you ship from?
We’re based in Nashik, Maharashtra. All orders are dispatched from Nashik.
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.
Can you share a proforma invoice / quotation before I pay?
Yes — we can share a quotation/proforma invoice. Send: part number(s), quantity, your GSTIN (if applicable), billing name/address, and delivery PIN code.
If I order the same parts again later, will they match?
We try to maintain consistency, but supply can change. If matching lot/brand matters, tell us in advance and we’ll advise what’s available.

NEW Products

Product Page : New Products

0.56" RED CC 7 Segment Display

0.56 Inch RED Common Cathode 7-Segment Display 0.56" RED CC 7-Segment Display, easy to read in all ..

Rs.12.39 (inc GST)
Rs.10.50 + GST

SKU: 3149 | DAE781
Stock: 100

Meanwell SMPS LRS-35-12

Mean Well LRS-35-12 36 W Single-Output Enclosed Switching Power Supply Mean Well LRS-35-12 enclosed ..

Rs.835.44 (inc GST)
Rs.708.00 + GST

SKU: 2493 | DAC657
Stock: 20

PEC11R-4020F-S0024 Vertical With Momentary Push Switch

PEC11R-4020F-S0024 Vertical Momentary Push Switch PEC11R-4020F-S0024 Vertical rotary encoder with mo..

Rs.396.54 (inc GST)
Rs.336.05 + GST

SKU: 8190 | DAH769
Stock: 4

IRF1404 N Channel Power MOSFET

Infineon Technologies IRF1404PBF N-Channel Power MOSFET IRF1404PBF N-channel power switching MOSFET ..

Rs.62.54 (inc GST) Rs.75.99
Rs.53.00 + GST

SKU: 716 | DAA160
Stock: 20

Have You Seen

Product Page : Have You Seen

22uf 25 VOLT SMD ELECTROLYTIC CAPACITOR (MAKE:HYNCDZ)

HYNCDZ 22uF 25V SMD Electrolytic Capacitor 22uF 25V SMD Capacitor for decoupling, low ESR, and dura..

Rs.4.60 (inc GST)
Rs.3.90 + GST

SKU: 7986 | DAD622
Stock: 500

4S 14.8V 16.8V Lithium Ion Charging Battery Voltage Capacity Percent Level LED Indicator Charger Display 18650 14500 (for 4 Cell in Series)

Battery Charger 4S 14.8V 16.8V Lithium Ion Display 4S 14.8V 16.8V Lithium Ion Charger with LED displ..

Rs.205.60 (inc GST)
Rs.174.24 + GST

SKU: 7881 | DAG069
Stock: 49

4S Lithium Battery Active Balancer Module

4S Lithium Battery Active Balancer Module4S lithium battery active balancer Module for equal voltage..

Rs.366.39 (inc GST)
Rs.310.50 + GST

SKU: 10712 | DAJ757
Stock: 30

TM1638 Display Driver & Keypad Interface IC

TM1638 Display Driver & Keypad Interface IC TM1638 IC for LED display drive control and keypad inter..

Rs.29.50 (inc GST)
Rs.25.00 + GST

SKU: 3003 | DAE730
Stock: 10

Related Products

Cytron MDS160A SmartDrive160 160AMP Dc Motor Driver (Peak 190Amp)

Cytron MDS160A SmartDrive160 160AMP Dc Motor Driver (Peak 190Amp)

Cytron MDS160A SmartDrive160 160AMP Dc Motor Driver (Peak 190Amp)160Amp 8V-28V SmartDrive DC Motor D..

Rs.19,845.00 (inc GST)
Rs.16,817.80 + GST

SKU: 2275 |
Stock: 0
PC817/EL817 SMD Optocoupler IC (SOP-4 Package)

PC817/EL817 SMD Optocoupler IC (SOP-4 Package)

OptoCoupler PC817 Transistor Output for SMD Applications PC817 Optocoupler for SMD applications with..

Rs.5.12 (inc GST)
Rs.4.34 + GST

SKU: 2761 | DAC225
Stock: 75
TNY267PN IC AC/DC Switching Converter IC

TNY267PN IC AC/DC Switching Converter IC

TNY267PN IC AC/DC Switching Converter ICTNY267PN AC DC Converter with TinySwitch™-II tech, 700V MOSF..

Rs.53.10 (inc GST)
Rs.45.00 + GST

SKU: 1398 | DAE610
Stock: 4
LNK305PN IC AC-DC Offline Switcher IC

LNK305PN IC AC-DC Offline Switcher IC

LNK305PN IC AC-DC Offline Switcher ICLNK305PN IC offers energy-efficient performance for non-isolate..

Rs.61.36 (inc GST)
Rs.52.00 + GST

SKU: 2943 | DAE619
Stock: 25
PCF8591 8-Bit Analog to Digital A/D and Digital to Analog D/A Converter IC

PCF8591 8-Bit Analog to Digital A/D and Digital to Analog D/A Converter IC

PCF8591 8-Bit Analog to Digital A/D and Digital to Analog D/A Converter ICPCF8591 8-Bit A/D D/A Conv..

Rs.663.75 (inc GST)
Rs.562.50 + GST

SKU: 9176 | DAF328
Stock: 20