UC3843BD1R2
IC REG CTRLR FLYBACK 8SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
Quality Control: Learn More
The onsemi UC3843BD1R2 is a high-performance voltage mode PWM controller designed for Boost and Flyback converter topologies. This 8-SOIC package component features a wide input voltage range from 7.6V to 30V and an internal oscillator with adjustable frequency up to 500kHz, offering flexibility for various power supply designs. The controller includes precise voltage and current mode control, a 96% maximum duty cycle, and a precise reference voltage for accurate regulation. Its output is a positive, isolation-capable transistor driver suitable for single-output applications. Commonly utilized in power supply applications across industrial, consumer electronics, and telecommunications sectors, this component facilitates efficient step-up and step-down power conversion. The UC3843BD1R2 is supplied in a Tape & Reel (TR) package for automated assembly.
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 | 8-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 | 8-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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