We use Cookies to give you best experience on our website. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Please see our Privacy Policy for more information.

Register or Sign In
Power Circuits / Switching Regulator or Controllers / UC3843BN
Datasheets
UC3843BN by:

Current Mode PWM

Part Details for UC3843BN by STMicroelectronics

Results Overview of UC3843BN by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics Energy and Power Systems Renewable Energy

UC3843BN Information

UC3843BN by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for UC3843BN

Part # Distributor Description Stock Price Buy
DISTI # 51AC9705
Newark Pwm Cont, Current Mode, 500Khz, Minidip, Input Voltage:15V, Output Voltage:5V, Output Current:1A, Supply Voltage Min:-, Supply Voltage Max:-, Controller Ic Case Style:Minidip, No. Of Pins:8Pins, Frequency:500Khz, Operating Rohs Compliant: Yes |Stmicroelectronics UC3843BN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 1179
  • 1 $0.8700
  • 10 $0.7750
  • 100 $0.5950
  • 500 $0.5250
  • 1,000 $0.4140
  • 2,500 $0.3870
  • 10,000 $0.3590
$0.3590 / $0.8700 Buy Now
STMicroelectronics Current Mode PWM RoHS: Compliant Min Qty: 1 3877
  • 1 $0.8200
  • 10 $0.4900
  • 100 $0.4300
  • 500 $0.4100
$0.4100 / $0.8200 Buy Now
DISTI # UC3843BN
TME IC: PMIC, PWM controller, 1A, 48÷500kHz, Ch: 1, MiniDIP8, 0÷96%, tube Min Qty: 1 1559
  • 1 $0.8020
  • 10 $0.7140
  • 50 $0.6540
  • 100 $0.5600
  • 250 $0.5270
  • 500 $0.4730
  • 1,000 $0.3690
  • 4,000 $0.3460
$0.3460 / $0.8020 Buy Now
ComSIT USA HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8 RoHS: Not Compliant Stock DE - 400
Stock ES - 100
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # UC3843BN
Avnet Silica Current Mode PWM Controller 1A 8-Pin PDIP (Alt: UC3843BN) RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 15 Weeks, 0 Days Silica - 9600
Buy Now
CHIPMALL.COM LIMITED 500kHz 7.6V~30V DIP-8 AC-DC Controllers and Regulators ROHS 5159
  • 1 $0.1570
$0.1570 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 277
  • 1 $0.9200
  • 100 $0.6900
  • 1,000 $0.6000
$0.6000 / $0.9200 Buy Now
DISTI # UC3843BN
EBV Elektronik Current Mode PWM Controller 1A 8-Pin PDIP (Alt: UC3843BN) RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 15 Weeks, 0 Days EBV - 2700
Buy Now
LCSC 500kHz 7.6V30V DIP-8 AC-DC Controllers and Regulators ROHS 5674
  • 5 $0.2749
  • 50 $0.2230
  • 150 $0.2008
  • 500 $0.1731
  • 2,000 $0.1607
  • 5,000 $0.1533
$0.1533 / $0.2749 Buy Now
Win Source Electronics IC REG CTRLR BST/FLYBK 8-MINIDIP 307400
  • 225 $0.2270
  • 535 $0.1870
  • 830 $0.1810
  • 1,145 $0.1750
  • 1,480 $0.1690
  • 1,975 $0.1520
$0.1520 / $0.2270 Buy Now

Part Details for UC3843BN

UC3843BN CAD Models

  • Part Symbol

    Part Symbol

  • Footprint

    footprint

  • 3D Model

    3D Model

Available Download Formats

Sign in to download CAD models Register or Sign In

By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy

UC3843BN Part Data Attributes

Parametric Data
UC3843BN STMicroelectronics
Buy Now Datasheet
Compare Parts:
UC3843BN STMicroelectronics Current Mode PWM
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code DIP
Package Description MINI, DIP-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 14 Weeks
Samacsys Manufacturer STMicroelectronics
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 30 V
Input Voltage-Min 8.2 V
Input Voltage-Nom 15 V
JESD-30 Code R-PDIP-T8
JESD-609 Code e3
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 1 A
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP8,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Peak Reflow Temperature (Cel) NOT SPECIFIED
Qualification Status Not Qualified
Seated Height-Max 5.08 mm
Surface Mount NO
Switcher Configuration SINGLE
Switching Frequency-Max 500 kHz
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish Matte Tin (Sn)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 7.62 mm

Alternate Parts for UC3843BN

This table gives cross-reference parts and alternative options found for UC3843BN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC3843BN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
UC3843BN onsemi Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDIP8, PLASTIC, DIP-8 UC3843BN vs UC3843BN
UC3843N Rochester Electronics LLC Check for Price 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8, GREEN, PLASTIC, DIP-8 UC3843BN vs UC3843N
UC3843N STMicroelectronics Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDIP8, 0.300 INCH, MINI, DIP-8 UC3843BN vs UC3843N
Part Number Manufacturer Composite Price Description Compare
SG1844L Microchip Technology Inc Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 UC3843BN vs SG1844L
UC3842BVD1 onsemi Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SOIC-8 UC3843BN vs UC3842BVD1
5962-8670403V2X Texas Instruments Check for Price 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20 UC3843BN vs 5962-8670403V2X
UC2844AD Texas Instruments $0.7646 30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 40°C to 85°C 14-SOIC -40 to 85 UC3843BN vs UC2844AD
E-UC2843BD1013TR STMicroelectronics Check for Price Current Mode PWM UC3843BN vs E-UC2843BD1013TR
UC1844AMDREP Texas Instruments $3.1205 Enhanced Product Current Mode Pwm Controller 8-SOIC -55 to 125 UC3843BN vs UC1844AMDREP
UC3844DTRG4 Texas Instruments Check for Price Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C 14-SOIC 0 to 70 UC3843BN vs UC3844DTRG4
UC2845BD1 STMicroelectronics $0.4650 Current Mode PWM UC3843BN vs UC2845BD1
UC3842D8G4 Texas Instruments Check for Price Current-Mode PWM Controller 8-SOIC 0 to 70 UC3843BN vs UC3842D8G4
UC3842BDG onsemi $0.2291 High Performance Current Mode PWM Controller, SOIC-14 NB, 55-TUBE UC3843BN vs UC3842BDG

UC3843BN Related Parts

Share by Email

Something went wrong!
Please enter a valid e-mail address
Email sent!
Recipient Email:
Add a recipient
Hello!

We are passing along some cool findings on Findchips sent to you from .

The data is for UC3843BN by STMicroelectronics.
They’ve also added a data comparison to this page with by .

Click on the link below to check it out on Findchips.com.

Update Alert Settings for: UC3843BN by STMicroelectronics

Select Manufacturer
Which Manufacturer of UC3843BN would you like to use for your alert(s)?
Inventory Alert
  • Please alert me when UC3843BN inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for UC3843BN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
Pricing Alert
  • Please alert me when the single part price for UC3843BN to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for UC3843BN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for UC3843BN.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.

Compare UC3843BN by STMicroelectronics

Select a part to compare:
Part Number Manufacturer Description
No result found.
Something went wrong!
Or search for a different part: