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| Part Number | TL1451ACDBR | TL1451ACDR | TL1454ACDBR | TL1451CDBR |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Active | Discontinued at Digi-Key |
| Output Type | 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, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive, Isolation Capable | Positive |
| Topology | Buck, Boost, Flyback | Buck, Boost, Flyback | Buck, Boost, Flyback | Buck, Boost, Flyback |
| Number of Outputs | 2 | 2 | 2 | 2 |
| Output Phases | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.6V ~ 50V | 3.6V ~ 50V | 3.6V ~ 20V | 3.6V ~ 50V |
| Frequency - Switching | 1kHz ~ 500kHz | 1kHz ~ 500kHz | 50kHz ~ 2MHz | 1kHz ~ 500kHz |
| Duty Cycle (Max) | - | - | 100% | - |
| Synchronous Rectifier | No | No | Yes | No |
| Clock Sync | No | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Frequency Control | Frequency Control | Dead Time Control, Frequency Control | Frequency Control |
| Operating Temperature | -20°C ~ 85°C (TA) | -20°C ~ 85°C (TA) | -20°C ~ 85°C (TA) | -20°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-SSOP (0.209", 5.30mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SSOP (0.209", 5.30mm Width) | 16-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 16-SSOP | 16-SOIC | 16-SSOP | 16-SSOP |