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| Part Number | UC2846NG4 | UC2856NG4 | UC2843NG4 | UC2844NG4 | UC2845NG4 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | 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 |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, 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, Isolation Capable | Positive, Isolation Capable |
| Topology | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Boost, Buck, Buck-Boost, Flyback, Forward | Boost, Buck, Flyback, Forward | Boost, Buck, Flyback, Forward |
| Number of Outputs | 2 | 2 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 6.95V ~ 40V | 7V ~ 40V | 12V ~ 28V | 12V ~ 28V | 12V ~ 28V |
| Frequency - Switching | 500kHz | 200kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz |
| Duty Cycle (Max) | 50% | 47% | 97% | 48% | 48% |
| Synchronous Rectifier | Yes | Yes | No | No | No |
| Clock Sync | Yes | Yes | No | No | No |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Current Limit, Enable, Frequency Control, Soft Start | Enable, Frequency Control, Soft Start | Frequency Control | Frequency Control | Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 8-PDIP | 8-PDIP | 8-PDIP |
