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| Part Number | UCC28C44DG4 | UCC28C44DGK | UCC28C44DRG4 | UCC28C40DG4 | UCC28C41DG4 | UCC28C42DG4 | UCC28C43DG4 |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Discontinued at Digi-Key | Active | Discontinued at Digi-Key | Discontinued at Digi-Key | Discontinued at Digi-Key | Discontinued at Digi-Key | Discontinued at Digi-Key |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 9V ~ 18V | 9V ~ 18V | 9V ~ 18V | 6.6V ~ 18V | 6.6V ~ 18V | 9V ~ 18V | 7.6V ~ 18V |
| Frequency - Switching | Up to 1MHz | Up to 1MHz | Up to 1MHz | Up to 1MHz | Up to 1MHz | Up to 1MHz | Up to 1MHz |
| Duty Cycle (Max) | 48% | 48% | 48% | 96% | 48% | 96% | 96% |
| Synchronous Rectifier | No | No | No | No | No | No | No |
| Clock Sync | No | No | No | No | No | No | No |
| Serial Interfaces | - | - | - | - | - | - | - |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Operating Temperature | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) | -40°C ~ 105°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-VSSOP | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
