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onsemi UC3842BD1R2G Microcontrollers

SOIC-8 PWM Controller, 275kHz, 30V, 1A, Boost/Flyback

8,957 ActiveonsemiUC3842BD8-SOIC (0.154", 3.90mm Width)$0.24
UC3842BD1R2G 8-SOIC (0.154", 3.90mm Width) package illustration

Same model may have multiple batches, images only for reference.

UC3842BD1R2G
Manufacturer
Part Number (MPN)
UC3842BD1R2G
Base Model
Detailed Description
SOIC-8 PWM Controller, 275kHz, 30V, 1A, Boost/Flyback
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
PDF UC3842BD1R2G Datasheet
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Ordering Code Family

UC3842BD groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

onsemi UC3842BD1R2G Microcontrollers technical specifications.

General

RoHS
Yes
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
10V ~ 30V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Topology
Boost, Flyback

Alternate Parts Comparison (UC3842BD1R2G vs UC3842BD vs UC3842BD1R2 vs UC3842BDR2)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case8-SOIC14-SOIC8-SOIC14-SOIC
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature0°C ~ 70°C (TA)0°C ~ 70°C (TA)0°C ~ 70°C (TA)0°C ~ 70°C (TA)
Supply Voltage10V ~ 30V10V ~ 30V10V ~ 30V10V ~ 30V
Switching FrequencyUp to 500kHzUp to 500kHzUp to 500kHzUp to 500kHz
Lifecycle StatusActiveObsoleteObsoleteObsolete
Clock SyncNoNoNoNo
Control FeaturesFrequency ControlFrequency ControlFrequency ControlFrequency Control
Duty Cycle Max96%96%96%96%
FunctionStep-Up, Step-Up/Step-DownStep-Up, Step-Up/Step-DownStep-Up, Step-Up/Step-DownStep-Up, Step-Up/Step-Down
Number of Outputs1111
Output ConfigurationPositive, Isolation CapablePositive, Isolation CapablePositive, Isolation CapablePositive, Isolation Capable
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

This part is listed as a cross for

TL3842BDR-8TL3842BDR-8Texas Instruments
Directonsemi
Pin YesPkg YesElec Yes
30-V, 0.2A high Performance 500KHz current mode PWM with 16V/10V UVLO, 100% duty cycle, 0C to 70C 8-SOIC 0 to 70
UC3842AD8TRUC3842AD8TRTexas Instruments
Directonsemi
Pin YesPkg YesElec Yes
30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0°C to 70°C 8-SOIC 0 to 70
UC3842BD1GUC3842BD1Gonsemi
Directonsemi
Pin YesPkg YesElec Yes
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC

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