UC3856Q
IC REG CTRLR MULT TOP 20PLCCManufacturer: Texas Instruments
Categories: DC DC Switching Controllers
Quality Control: Learn More
The Texas Instruments UC3856Q is a versatile PWM controller IC designed for a wide range of DC-DC converter topologies including Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, and Push-Pull. This device offers positive output voltage regulation and supports step-up, step-down, and step-up/step-down functionality. Key control features include Enable, Frequency Control, and Soft Start. Operating with a switching frequency up to 200kHz, the UC3856Q boasts a maximum duty cycle of 47%. It supports two outputs with a single output phase and utilizes a transistor driver for output control. Integrated clock synchronization and synchronous rectification enhance its performance. The controller operates from a 7V to 40V supply and is housed in a 20-PLCC package, suitable for surface mounting. This component finds application in power supplies for industrial automation, telecommunications, and consumer electronics.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: BulkDownload Free CAD Model:
Technical Details:
| Packaging | Bulk |
| Package / Case | 20-LCC (J-Lead) |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Output Configuration | Positive |
| Frequency - Switching | 200kHz |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Voltage - Supply (Vcc/Vdd) | 7V ~ 40V |
| Supplier Device Package | 20-PLCC (9x9) |
| Synchronous Rectifier | Yes |
| Control Features | Enable, Frequency Control, Soft Start |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 47% |
| Clock Sync | Yes |
| Number of Outputs | 2 |
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