UC3843BVD
IC REG CTRLR FLYBACK 14SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3843BVD is a high-performance current-mode PWM controller IC. Designed for boost and flyback topologies, this device enables efficient step-up and step-up/step-down DC-DC conversion with isolation-capable outputs. Key features include a wide operating voltage range from 7.6V to 30V and a maximum duty cycle of 96%, allowing for optimized power conversion. The controller operates with switching frequencies up to 500kHz, supporting compact and efficient power supply designs. Its 14-SOIC (0.154", 3.90mm Width) surface mount package is suitable for various applications in power supplies, industrial automation, and consumer electronics. The UC3843BVD offers precise frequency control for robust regulation.
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 | -40°C ~ 105°C (TA) |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 500kHz |
| Topology | Boost, Flyback |
| Voltage - Supply (Vcc/Vdd) | 7.6V ~ 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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