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| Part Number | NCP1051ST44T3 | NCP1052ST44T3 | NCP1053ST44T3 | NCP1055ST44T3 | NCP1054ST44T3 | NCP1051ST44T3G | NCP1050ST44T3 |
|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Output Isolation | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated |
| Internal Switch(s) | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Voltage - Breakdown | 700V | 700V | 700V | 700V | 700V | 700V | 700V |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback |
| Voltage - Start Up | 8.5 V | 8.5 V | 8.5 V | 8.5 V | 8.5 V | 8.5 V | 8.5 V |
| Voltage - Supply (Vcc/Vdd) | 7.5V ~ 10V | 7.5V ~ 10V | 7.5V ~ 10V | 7.5V ~ 10V | 7.5V ~ 10V | 7.5V ~ 10V | 7.5V ~ 10V |
| Duty Cycle | 77% | 77% | 77% | 77% | 77% | 77% | 77% |
| Frequency - Switching | 44kHz | 44kHz | 44kHz | 44kHz | 44kHz | 44kHz | 44kHz |
| Power (Watts) | 40 W | 40 W | 40 W | 40 W | 40 W | 40 W | 40 W |
| Fault Protection | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature | Current Limiting, Open Loop, Over Load, Over Temperature |
| Control Features | - | - | - | - | - | - | - |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223 (TO-261) | SOT-223 (TO-261) | SOT-223 (TO-261) | SOT-223 (TO-261) | SOT-223 (TO-261) | SOT-223 (TO-261) | SOT-223 (TO-261) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
