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| Part Number | UC3527ANG4 | UC3527BNG4 | UC3524ANG4 | UC3525ANG4 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Unitrode | Texas Instruments | Texas Instruments |
| Product Status | Discontinued at Digi-Key | Obsolete | Discontinued at Digi-Key | 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 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Forward Converter, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 2 | 2 | 2 | 2 |
| Output Phases | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 8V ~ 35V | 8V ~ 35V | 8V ~ 40V | 8V ~ 35V |
| Frequency - Switching | 100Hz ~ 400kHz | 100Hz ~ 400kHz | 500kHz | 100Hz ~ 400kHz |
| Duty Cycle (Max) | 49% | 49% | 45% | 49% |
| Synchronous Rectifier | Yes | Yes | No | Yes |
| Clock Sync | Yes | Yes | No | Yes |
| Serial Interfaces | - | - | - | - |
| Control Features | Enable, Frequency Control, Soft Start | Enable, Frequency Control, Soft Start | Frequency Control | Enable, Frequency Control, Soft Start |
| Operating Temperature | 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 |
| 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) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 16-PDIP | 16-PDIP |
