UC3845BVDR2
IC REG CTRLR BOOST/FLYBK 14SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3845BVDR2 is a high-performance current-mode PWM controller. This device is optimized for Boost, Flyback, and isolated output topologies, offering precise control for step-up and step-down DC-DC conversion. Featuring frequency compensation via external components, it supports switching frequencies up to 500kHz. The UC3845BVDR2 integrates a voltage reference, an error amplifier, a current sensing comparator, a PWM latch, a voltage-mode oscillator, and a high-current output driver. Its wide operating voltage range is 7.6V to 30V, with a maximum duty cycle of 48%. Designed for surface mount installation in a 14-SOIC package, this component is suitable for applications in industrial power supplies, lighting, and consumer electronics. The UC3845BVDR2 is supplied on tape and reel.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Download Free CAD Model:
Technical Details:
| Packaging | Tape & Reel (TR) |
| 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) | 48% |
| Clock Sync | No |
| Number of Outputs | 1 |
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