NCP1055P44
IC OFFLINE SWITCH FLYBACK 7DIPManufacturer: onsemi
Categories: AC DC Converters, Offline Switches
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onsemi NCP1055P44 is a high-performance offline switching controller designed for flyback topologies. This 7-pin PDIP component operates at a 44kHz switching frequency, delivering up to 40W of power with an isolated output. Key features include an integrated 700V power switch, enabling simplified designs and reduced component count. The device incorporates robust fault protection mechanisms, including current limiting, open loop, overload, and over-temperature protection, ensuring reliable operation. With a wide operating temperature range of -40°C to 150°C (TJ) and a supply voltage range of 7.5V to 10V, the NCP1055P44 is suitable for demanding applications in power supplies, LED drivers, and consumer electronics. The internal switch capability and 77% duty cycle contribute to efficient power conversion.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 8-DIP (0.300"", 7.62mm), 7 Leads |
| Mounting Type | Through Hole |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Duty Cycle | 77% |
| Frequency - Switching | 44kHz |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Output Isolation | Isolated |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) | 7.5V ~ 10V |
| Supplier Device Package | 7-PDIP |
| Fault Protection | Current Limiting, Open Loop, Over Load, Over Temperature |
| Voltage - Start Up | 8.5 V |
| Control Features | - |
| Power (Watts) | 40 W |
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