UC3843AN (High Performance Fixed Frequency Current-Mode Controller) - South Africa Arduino, Robotics & Electronics Supplier South Africa: R1.55
Leobot Electronics South Africa (Pretoria)
Waverley, Pretoria, South Africa
Nationwide delivery · Orders ready in 15 min · Stock shown is up-to-date · Collect or Deliver · 48h Delivery Time, · Free delivery for orders over R1000
Leobot Product Banner

Trusted Electronics Supplier in South Africa

Leobot Electronics is your trusted supplier for Arduino, robotics, IoT components, and electronic modules in South Africa. We stock a wide range of high-quality sensors, microcontrollers, modules, cables, and prototyping tools—ready for fast, nationwide delivery. Whether you're a hobbyist, student, or engineer, we provide the essential electronics you need to build, learn, and innovate. In addition to product sales, we offer custom development services including embedded systems, IoT design, CAD modelling, and smart device integration.

    • Leobot Electronics Online Shop

Leobot Arduino Nano Special Offer
UC3843AN (High Performance Fixed Frequency Current-Mode Controller)
  • UC3843AN (High Performance Fixed Frequency Current-Mode Controller)
  • UC3843AN (High Performance Fixed Frequency Current-Mode Controller)

#157: UC3843AN (High Performance Fixed Frequency Current-Mode Controller)

R1.55


The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line plastic package as well as the 14−pin plastic surface mount (SOIC−14). The SOIC−14 package has separate power and ground pins for the totem pole output stage. The UCX842A has UYLO thresholds of 16 V (on) and 10 V (off), ideally suited for off−line converters. The UCX843A is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).

Product Details

Datasheet available here:
https://leobot.net/datasheets/UC3843AN.pdf 

Manufacturer: Texas Instruments
Product Category: Switching Controllers
Topology: Boost, Buck, Flyback, Forward
Number of Outputs: 1 Output
Switching Frequency: 500 kHz
Duty Cycle - Max: 100 %
Input Voltage: 12 V to 28 V
Output Voltage: 5 V
Output Current: 200 mA
Minimum Operating Temperature: 0 C
Maximum Operating Temperature: + 70 C
Mounting Style: Through Hole
Package/Case: PDIP-8
Brand: Texas Instruments
Fall Time: 50 ns
Operating Supply Current: 25 mA
Operating Supply Voltage: 12 V to 28 V
Product Type: Switching Controllers
Rise Time: 50 ns
Series: UC3843A

 


Product Details

Est. Packaging Size Specifications

Length: 10.00mm
Width: 5.00mm
Height: 5.00mm

BUY

UC3843AN (High Performance Fixed Frequency Current-Mode Controller)

Regular price: R1.55
Qty To Purchase:
In Stock: 27





GET NOTIFIED!

Get notified when new stock arrives! Simply provide your email address:


Email Address:



Bulk/Direct Imports!

Want more stock than we have on-hand? Let us import this product in bulk for you! Bulk Direct Import




Categories