UC3842BD1
IC REG CTRLR BST FLYBK ISO 8SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3842BD1 is a high-performance current-mode, fixed-frequency pulse-width modulator controller designed for boost, flyback, and isolated output topologies. This 8-SOIC package device offers a wide operating voltage range of 10V to 30V and features a maximum duty cycle of 96%, enabling efficient power conversion. With a switching frequency capability of up to 500kHz, the UC3842BD1 is suitable for compact and high-density power supply designs. Its output configuration supports positive and isolation-capable outputs, with a single transistor driver output. Key control features include frequency control, and it operates without clock synchronization. This component finds application in various industries requiring robust DC-DC conversion, including industrial power supplies and consumer electronics.
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 | 8-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 | 8-SOIC |
| Synchronous Rectifier | No |
| Control Features | Frequency Control |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 96% |
| Clock Sync | No |
| Number of Outputs | 1 |