Datasheets
UC3843N by:

Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C 8-PDIP 0 to 70

Part Details for UC3843N by Texas Instruments

Overview of UC3843N by Texas Instruments

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

Price & Stock for UC3843N

Part # Distributor Description Stock Price Buy
DISTI # 29AH8390
Newark Pwm Controller, 500Khz, 7.6V-30V, Pdip-8, Input Voltage:25V, Output Voltage:13.5V, Output Current:1A, Supply Voltage Min:7.6V, Supply Voltage Max:30V, Controller Ic Case Style:Dip, No. Of Pins:8Pins, Frequency:500Khz, Operating Rohs Compliant: Yes |TEXAS INSTRUMENTS UC3843N Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 0
  • 1 $1.7100
  • 10 $1.5800
  • 25 $1.4800
  • 50 $1.4000
  • 100 $1.3200
  • 250 $1.2600
  • 500 $1.2400
$1.2400 / $1.7100 Buy Now
DISTI # 296-11288-5-ND
DigiKey IC REG CTRLR MULT TOPOLOGY 8DIP Min Qty: 1 Lead time: 12 Weeks Container: Tube 602
In Stock
  • 1 $1.4400
  • 10 $1.2870
  • 50 $1.2216
  • 100 $1.0035
  • 250 $0.9380
  • 500 $0.8290
  • 1,000 $0.6544
  • 2,500 $0.6108
  • 5,000 $0.5803
$0.5803 / $1.4400 Buy Now
DISTI # 595-UC3843N
Mouser Electronics Switching Controllers Current Mode RoHS: Compliant 1008
  • 1 $1.4400
  • 10 $1.1600
  • 100 $0.9120
  • 500 $0.8280
  • 1,000 $0.6540
  • 2,500 $0.6100
  • 5,000 $0.5800
$0.5800 / $1.4400 Buy Now
DISTI # J56:1989_00023555
Arrow Electronics Current Mode PWM Controller 200mA 500kHz 8-Pin PDIP Tube RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 12 Weeks Europe - 50
  • 50 $0.9714
  • 100 $0.8051
  • 500 $0.7321
  • 1,000 $0.6139
  • 2,500 $0.5784
  • 5,000 $0.5538
$0.5538 / $0.9714 Buy Now
Bristol Electronics   87
RFQ
Quest Components Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 8 Pin, Plastic, DIP 171
  • 1 $1.9160
  • 14 $1.1496
  • 53 $0.9580
$0.9580 / $1.9160 Buy Now
Rochester Electronics UC3843 Current-Mode PWM Controller RoHS: Compliant Status: Active Min Qty: 1 957
  • 1 $0.6008
  • 25 $0.5888
  • 100 $0.5648
  • 500 $0.5407
  • 1,000 $0.5107
$0.5107 / $0.6008 Buy Now
DISTI # UC3843N
TME IC: PMIC, PWM controller, 1A, 47÷500kHz, Ch: 1, DIP8, Uoper: 7.6÷28V Min Qty: 1 69
  • 1 $1.3600
  • 50 $1.0200
  • 100 $0.8800
  • 250 $0.7900
$0.7900 / $1.3600 Buy Now
Ameya Holding Limited IC: PMIC, PWM controller, 1A, 47÷500kHz, Channels: 1, DIP8, 0÷97% 20571
RFQ
LCSC 12V28V PDIP-8 AC-DC Controllers Regulators ROHS 5
  • 1 $1.0206
  • 10 $0.8915
  • 50 $0.8106
  • 100 $0.6867
  • 500 $0.6494
  • 1,000 $0.6331
$0.6331 / $1.0206 Buy Now

Part Details for UC3843N

UC3843N CAD Models

UC3843N Part Data Attributes:

UC3843N Texas Instruments
Buy Now Datasheet
Compare Parts:
UC3843N Texas Instruments Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C 8-PDIP 0 to 70
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Package Description GREEN, PLASTIC, DIP-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 28 V
Input Voltage-Min 8.2 V
Input Voltage-Nom 15 V
JESD-30 Code R-PDIP-T8
JESD-609 Code e4
Length 9.59 mm
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 1 A
Output Voltage-Nom 5 V
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
Supply Current-Max (Isup) 25 mA
Supply Voltage-Max (Vsup) 28 V
Supply Voltage-Min (Vsup) 8.4 V
Surface Mount NO
Switcher Configuration BUCK-BOOST
Switching Frequency-Max 500 kHz
Technology BICMOS
Temperature Grade COMMERCIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
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 UC3843N

This table gives cross-reference parts and alternative options found for UC3843N. 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 UC3843N, 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 Description Manufacturer Compare
UC3843NG4 Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C 8-PDIP 0 to 70 Texas Instruments UC3843N vs UC3843NG4
Part Number Description Manufacturer Compare
SG2842DM-TR Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 Microchip Technology Inc UC3843N vs SG2842DM-TR
CS3843AGD14 1A SWITCHING CONTROLLER, PDSO14, SO-14 onsemi UC3843N vs CS3843AGD14
UC3844D8TR Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70 Texas Instruments UC3843N vs UC3844D8TR
UC3843AD 30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C 14-SOIC 0 to 70 Texas Instruments UC3843N vs UC3843AD
SG2845M Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8 Microsemi Corporation UC3843N vs SG2845M
SG3842D-TR Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, ROHS COMPLIANT, PLASTIC, SOIC-14 Microsemi Corporation UC3843N vs SG3842D-TR
CS2845LN8 1A SWITCHING CONTROLLER, PDIP8, DIP-8 onsemi UC3843N vs CS2845LN8
IP3845D-14 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, 0.150 INCH, PLASTIC, SOIC-14 TT Electronics Power and Hybrid / Semelab Limited UC3843N vs IP3845D-14
IP2845AJ Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, CDIP8, CERAMIC, DIP-8 TT Electronics Resistors UC3843N vs IP2845AJ
UC3842ADWTR 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO16, GREEN, PLASTIC, SOIC-16 Texas Instruments UC3843N vs UC3842ADWTR

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