UC3844BDR2
IC REG CTRLR PWM CM 14-SOICManufacturer: onsemi
Categories: DC DC Switching Controllers
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The onsemi UC3844BDR2 is a high-performance current-mode PWM controller designed for boost and flyback topologies. This device facilitates efficient step-up, step-up/step-down, and isolation-capable output configurations. Featuring a fixed-frequency oscillator, the UC3844BDR2 offers control over switching frequencies up to 500kHz. Its output driver is optimized for transistor driver applications, with a maximum duty cycle of 48%. The controller operates from a supply voltage range of 10V to 36V and is housed in an 8-SOIC package suitable for surface mounting. Key control features include frequency control, and it operates within an ambient temperature range of 0°C to 70°C. This component is commonly utilized in power supply designs across various industrial and consumer electronics sectors.
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) | 10V ~ 36V |
| Supplier Device Package | 8-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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