For Reference Only
| Part Number | UC3843BD |
| Manufacturer | onsemi |
| Category | Integrated Circuits (ICs) › DC DC Switching Controllers |
| Description | IC REG CTRLR FLYBACK 14SOIC |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | UC3843BD PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 08 - Dec 12 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment | 
|
| Shipping |  |
| Part Number: | UC3843BD |
| Brand: | onsemi |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | DC DC Switching Controllers |
| Manufacturer: | onsemi |
| Product Status: | Obsolete |
| Output Type: | Transistor Driver |
| Function: | Step-Up, Step-Up/Step-Down |
| Output Configuration: | Positive, Isolation Capable |
| Topology: | Boost, Flyback |
| Number of Outputs: | 1 |
| Output Phases: | 1 |
| Voltage - Supply (Vcc/Vdd): | 7.6V ~ 30V |
| Frequency - Switching: | Up to 500kHz |
| Duty Cycle (Max): | 96% |
| Synchronous Rectifier: | No |
| Clock Sync: | No |
| Serial Interfaces: | - |
| Control Features: | Frequency Control |
| Operating Temperature: | 0°C ~ 70°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package: | 14-SOIC |
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| In Stock | 39284 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 440 | $0.80641 | $354.8204 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.
