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| Part Number | UC2825AQ | UC2825Q | UC2823AQ | UC2825AN |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Unitrode | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Obsolete | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | - | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 2 | 2 | 1 | 2 |
| Output Phases | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 8.4V ~ 22V | 8.4V ~ 30V | 8.4V ~ 22V | 8.4V ~ 22V |
| Frequency - Switching | 400kHz ~ 1MHz | 340kHz ~ 460kHz | 400kHz ~ 1MHz | 400kHz ~ 1MHz |
| Duty Cycle (Max) | 50% | 80% | 100% | 50% |
| Synchronous Rectifier | No | No | No | No |
| Clock Sync | No | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Current Limit, Frequency Control, Ramp, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Soft Start | Current Limit, Frequency Control, Ramp, Soft Start | Current Limit, Frequency Control, Ramp, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 20-LCC (J-Lead) | 20-LCC (J-Lead) | 20-LCC (J-Lead) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-PLCC (9x9) | 20-PLCC (8.96x8.96) | 20-PLCC (9x9) | 16-PDIP |
