UC3842BD
IC REG CTRLR PWM CM 14-SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3842BD is a high-performance current mode PWM controller designed for boost, flyback, and isolated output configurations. This versatile device operates with input voltages from 10V to 30V and features precise frequency control, enabling switching frequencies up to 500kHz. Its output stage is configured for a positive, isolation-capable driver, supporting a single output phase with a maximum duty cycle of 96%. The UC3842BD is packaged in a 14-SOIC surface-mount format. This controller is well-suited for applications in industrial power supplies, telecommunications equipment, and consumer electronics requiring efficient DC-DC conversion.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 14-SOIC (0.154"", 3.90mm Width) |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Up, Step-Up/Step-Down |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 500kHz |
| Topology | Boost, Flyback |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 30V |
| Supplier Device Package | 14-SOIC |
| Synchronous Rectifier | No |
| Control Features | Frequency Control |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 96% |
| Clock Sync | No |
| Number of Outputs | 1 |
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