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| Part Number | CS51221ED16 | CS51221EDR16 | CS51221ED16G | CS51021ED16 | CS51220ED16 |
|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Obsolete | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | - | - |
| Function | Step-Up/Step-Down | Step-Up/Step-Down | Step-Up/Step-Down | - | - |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | - | - |
| Topology | Forward Converter | Forward Converter | Forward Converter | - | - |
| Number of Outputs | 1 | 1 | 1 | - | - |
| Output Phases | 1 | 1 | 1 | - | - |
| Voltage - Supply (Vcc/Vdd) | 3.8V ~ 15V | 3.8V ~ 15V | 3.8V ~ 15V | - | - |
| Frequency - Switching | 1MHz | 1MHz | 1MHz | - | - |
| Duty Cycle (Max) | 85% | 85% | 85% | - | - |
| Synchronous Rectifier | No | No | No | - | - |
| Clock Sync | Yes | Yes | Yes | - | - |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Current Limit, 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) | - | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | - | - |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - | - |
| Supplier Device Package | 16-SOIC | 16-SOIC | 16-SOIC | - | - |
