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| Part Number | UCC28951PWR | UCC28951PWT | UCC28251PWR | UCC2891PWR | UCC28950PWR |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | PWM Signal | Transistor Driver | Transistor Driver |
| Function | - | - | Step-Up/Step-Down | Step-Up/Step-Down | Step-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive, Isolation Capable | Positive |
| Topology | Full-Bridge | Full-Bridge | Full-Bridge, Half-Bridge, Push-Pull | Flyback, Forward Converter | Full-Bridge |
| Number of Outputs | 6 | 6 | 2 | 1 | 6 |
| Output Phases | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 8V ~ 17V | 8V ~ 17V | 4.7V ~ 17V | 8.5V ~ 16V | 8V ~ 17V |
| Frequency - Switching | Up to 1MHz | Up to 1MHz | 42kHz ~ 945kHz | 250kHz | 50kHz ~ 1MHz |
| Duty Cycle (Max) | 95% | 95% | - | 70% | 95% |
| Synchronous Rectifier | Yes | Yes | Yes | No | Yes |
| Clock Sync | Yes | Yes | No | Yes | Yes |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Enable, Frequency Control, Soft Start | Enable, Frequency Control, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Soft Start | Current Limit, Enable, On Time Control, Ramp, Soft Start | Dead Time Control, Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) | 24-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | 24-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 24-TSSOP | 24-TSSOP | 20-TSSOP | 16-TSSOP | 24-TSSOP |
