Texas Instruments UC3843AD DC DC Switching Controllers
IC REG CTRLR MULT TOP 14SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3843AD
Base Model
Detailed Description
IC REG CTRLR MULT TOP 14SOIC
Package
14-SOIC (0.154", 3.90mm Width)
Key Features
Package: 14-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3843AD Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3843AD DC DC Switching Controllers technical specifications.
General
RoHS
Yes
Package / Case
14-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
7.6V ~ 30V
Lifecycle Status
Active
Package
14-SOIC (0.154", 3.90mm Width)
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Alternate Parts Comparison (UC3843AD vs UC3843AD8TR vs UC3843AD8G4 vs UC3843AD8TRG4)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Duty Cycle Max | 96% | 100 | 96% | 96% |
| Package / Case | 14-SOIC | -- | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | -- | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | -- | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Supply Voltage | 7.6V ~ 30V | -- | 7.6V ~ 30V | 7.6V ~ 30V |
| Switching Frequency | Up to 500kHz | -- | Up to 500kHz | Up to 500kHz |
| Lifecycle Status | Active | -- | Active | Active |
| Clock Sync | No | -- | No | No |
| Control Features | Frequency Control | -- | Frequency Control | Frequency Control |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | -- | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Number of Outputs | 1 | -- | 1 | 1 |
| Output Configuration | Positive, Isolation Capable | -- | Positive, Isolation Capable | Positive, Isolation Capable |
| Action |
More Parts in DC DC Switching Controllers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
UC3843AD8TRTexas Instruments30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C 8-SOIC 0 to 70