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| Part Number | UC3867N | UC3877N | UC3868N | UC3847N | UC3863N | UC3864N | UC3866N |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Unitrode | Unitrode | Texas Instruments |
| Product Status | Active | Active | Obsolete | Obsolete | Active | Active | Active |
| Output Type | Transistor Driver | - | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | - |
| Function | Step-Up/Step-Down | - | Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up/Step-Down | Step-Up/Step-Down | - |
| Output Configuration | Positive | - | Positive | Positive | Positive | Positive | - |
| Topology | Full-Bridge, Half-Bridge, Push-Pull | - | Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull | - | Full-Bridge, Half-Bridge, Push-Pull | - |
| Number of Outputs | 2 | - | 2 | 2 | 2 | 2 | - |
| Output Phases | 1 | - | 1 | 1 | 1 | 1 | - |
| Voltage - Supply (Vcc/Vdd) | 7V ~ 22V | - | 7V ~ 22V | 6.95V ~ 40V | 7V ~ 22V | 7V ~ 22V | - |
| Frequency - Switching | 50kHz ~ 500kHz | - | 50kHz ~ 500kHz | 500kHz | 50kHz ~ 500kHz | 50kHz ~ 500kHz | - |
| Duty Cycle (Max) | 100% | - | 100% | 50% | 100% | 100% | - |
| Synchronous Rectifier | No | - | No | Yes | No | No | - |
| Clock Sync | No | - | No | Yes | No | No | - |
| Serial Interfaces | - | - | - | - | - | - | - |
| Control Features | Soft Start | - | Soft Start | Current Limit, Enable, Frequency Control, Soft Start | Soft Start | Soft Start | - |
| Operating Temperature | 0°C ~ 70°C (TA) | - | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°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) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | - |
| Supplier Device Package | 16-PDIP | - | 16-PDIP | 16-PDIP | 16-PDIP | 16-PDIP | - |
