UC3843BDG is Obsolete and no longer manufactured.
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Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

UC3843BDG

DigiKey Part Number
UC3843BDGOS-ND
Manufacturer
Manufacturer Product Number
UC3843BDG
Description
IC REG CTRLR FLYBACK 14SOIC
Customer Reference
Detailed Description
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
Datasheet
 Datasheet
EDA/CAD Models
UC3843BDG Models
Product Attributes
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Category
Frequency - Switching
Up to 500kHz
Manufacturer
onsemi
Duty Cycle (Max)
96%
Packaging
Tube
Synchronous Rectifier
No
Part Status
Obsolete
Clock Sync
No
Output Type
Transistor Driver
Control Features
Frequency Control
Function
Step-Up, Step-Up/Step-Down
Operating Temperature
0°C ~ 70°C (TA)
Output Configuration
Positive, Isolation Capable
Mounting Type
Surface Mount
Topology
Boost, Flyback
Package / Case
14-SOIC (0.154", 3.90mm Width)
Number of Outputs
1
Supplier Device Package
14-SOIC
Output Phases
1
Base Product Number
Voltage - Supply (Vcc/Vdd)
7.6V ~ 30V
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (16)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
UC3843BDR2Gonsemi2,441UC3843BDR2GOSCT-ND₱42.88000Similar
TL3843BDRochester Electronics, LLC6,4342156-TL3843BD-ND₱71.46000Direct
UC3842ADTexas Instruments1,319296-11278-5-ND₱87.54000Direct
UC3842ADTRTexas Instruments13,352296-UC3842ADCT-ND₱75.03000Direct
UC3842DRochester Electronics, LLC30,2782156-UC3842D-TI-ND₱97.66000Direct
Obsolete
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