UC3844BVN
IC REG CTRLR PWM CM 8-DIPManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3844BVN is a high-performance current-mode PWM controller designed for off-line switching power supplies. This versatile IC supports Boost, Flyback, and Step-Up/Step-Down topologies, enabling isolation-capable positive outputs. Featuring a precise frequency control up to 500kHz, it allows for efficient power conversion in compact designs. The UC3844BVN operates with a wide supply voltage range of 10V to 36V and offers a maximum duty cycle of 48%. Its robust design includes features like under-voltage lockout and output totem-pole drivers, making it suitable for demanding applications in industrial automation, consumer electronics, and lighting. The component is available in an 8-DIP (0.300") through-hole package.
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-DIP (0.300"", 7.62mm) |
| Output Type | Transistor Driver |
| Mounting Type | Through Hole |
| Function | Step-Up, Step-Up/Step-Down |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 500kHz |
| Topology | Boost, Flyback |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 36V |
| Supplier Device Package | 8-PDIP |
| Synchronous Rectifier | No |
| Control Features | Frequency Control |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 48% |
| Clock Sync | No |
| Number of Outputs | 1 |
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