Texas Instruments UC3842AD8TR Microcontrollers
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
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3842AD8TR
Base Model
Detailed Description
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
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3842AD8TR Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3842AD8TR Microcontrollers technical specifications.
General
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, Buck, Flyback, Forward
Control Features
Frequency Control
Alternate Parts Comparison (UC3842AD8TR vs UC3842ADW vs UC3842AD8G4 vs UC3842AD8TRG4)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 8-SOIC | 16-SOIC | 8-SOIC | 8-SOIC |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Supply Voltage | 10V ~ 30V | 10V ~ 30V | 10V ~ 30V | 10V ~ 30V |
| Switching Frequency | Up to 500kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz |
| Lifecycle Status | Active | Active | Active | Active |
| Clock Sync | No | No | No | No |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Duty Cycle Max | 96% | 96% | 96% | 96% |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| Output Phases | 1 | 1 | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| 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 .
Suggested replacements
UC3842BD1R2GonsemiDirectonsemi
Pin YesPkg YesElec Yes
SOIC-8 PWM Controller, 275kHz, 30V, 1A, Boost/Flyback
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
UC3842AD8TRG4Texas Instruments30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0°C to 70°C 8-SOIC 0 to 70
UC3842ADWTexas Instruments30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0°C to 70°C 16-SOIC 0 to 70
