Texas Instruments UC3844D8TR DC DC Switching Controllers
IC REG CTRLR PWM CM 8SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3844D8TR
Detailed Description
IC REG CTRLR PWM CM 8SOIC
Package
8-SOIC (0.154", 3.90mm Width)
Key Features
Package / Case: 8-SOIC (0.154", 3.90mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
UC3844D8TR Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3844D8TR DC DC Switching Controllers technical specifications.
General
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
12V ~ 28V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Topology
Boost, Buck, Buck-Boost, Flyback, Forward
Control Features
Frequency Control
Related Parts Comparison (UC3844D8TR vs UC3843AD8G4 vs UC2843AQD8R vs UC2843D8)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 12V ~ 28V | 7.6V ~ 30V | 7.6V ~ 30V | 12V ~ 28V |
| 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 | 48% | 96% | 96% | 97% |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up | Step-Up, Step-Down, Step-Up/Step-Down |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, 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 .
Suggested replacements
UC3844BD1R2GonsemiSimilaronsemi
Pin YesPkg YesElec Mixed
Current Mode PWM Controller, SOIC-8, 275kHz, 30V
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