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| Part Number | UC3524NG4 | UC3824NG4 | UC3526NG4 | UC3524ANG4 | UC3524DG4 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Unitrode | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Discontinued at Digi-Key | Discontinued at Digi-Key | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | 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-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Topology | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 2 | 1 | 2 | 2 | 2 |
| Output Phases | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 8V ~ 40V | 8.4V ~ 30V | 8V ~ 35V | 8V ~ 40V | 8V ~ 40V |
| Frequency - Switching | 300kHz | 340kHz ~ 460kHz | 1Hz ~ 400kHz | 500kHz | 300kHz |
| Duty Cycle (Max) | 45% | 85% | 49% | 45% | 45% |
| Synchronous Rectifier | No | No | Yes | No | No |
| Clock Sync | No | No | Yes | No | No |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Current Limit, Enable, Frequency Control, Ramp | Current Limit, Enable, Frequency Control, Ramp, Soft Start | Enable, Frequency Control, Reset, Soft Start | Frequency Control | Current Limit, Enable, Frequency Control, Ramp |
| 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 | Surface Mount |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 18-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 18-PDIP | 16-PDIP | 16-SOIC |
