UC3845BDG
IC REG CTRLR BOOST/FLYBK 14SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3845BDG is a fixed-frequency current-mode PWM controller designed for boost and flyback topologies. This 14-SOIC package device operates with a supply voltage range of 7.6V to 30V and offers a maximum duty cycle of 48%. It features frequency control for precise switching up to 500kHz and provides a positive, isolation-capable output suitable for driving external power transistors. The UC3845BDG is utilized in power supply applications across various industries including consumer electronics and industrial automation. Its robust design and versatile functionality make it a key component in efficient power conversion systems.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download 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) | 7.6V ~ 30V |
| Supplier Device Package | 14-SOIC |
| Synchronous Rectifier | No |
| Control Features | Frequency Control |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 48% |
| Clock Sync | No |
| Number of Outputs | 1 |