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| Part Number | UCC2891PWR | UCC2893PWR | UCC28951PWR | UCC2897PWR | UCC2892PWR | UCC2891PW |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Not For New Designs | Obsolete | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up/Step-Down | Step-Up/Step-Down | - | Step-Up/Step-Down | Step-Up/Step-Down | Step-Up/Step-Down |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| Topology | Flyback, Forward Converter | Flyback, Forward Converter | Full-Bridge | Flyback, Forward Converter | Flyback, Forward Converter | Flyback, Forward Converter |
| Number of Outputs | 1 | 1 | 6 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 8.5V ~ 16V | 8.5V ~ 16V | 8V ~ 17V | 8.5V ~ 14.5V | 8.5V ~ 16V | 8.5V ~ 16V |
| Frequency - Switching | 250kHz | 250kHz | Up to 1MHz | 250kHz | 250kHz | 250kHz |
| Duty Cycle (Max) | 70% | 70% | 95% | 74% | 70% | 70% |
| Synchronous Rectifier | No | No | Yes | Yes | No | No |
| Clock Sync | Yes | Yes | Yes | Yes | Yes | Yes |
| Serial Interfaces | - | - | - | - | - | - |
| Control Features | Current Limit, Enable, On Time Control, Ramp, Soft Start | Current Limit, Enable, On Time Control, Ramp, Soft Start | Enable, Frequency Control, Soft Start | Enable, On Time Control, Soft Start | Current Limit, Enable, On Time Control, Ramp, Soft Start | Current Limit, Enable, On Time Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | 16-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) | 16-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 16-TSSOP | 16-TSSOP | 24-TSSOP | 20-TSSOP | 16-TSSOP | 16-TSSOP |
