E-UC3843BN
IC REG CTRLR BST/FLYBK 8-MINIDIPManufacturer: STMicroelectronics
Categories: DC DC Switching Controllers
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STMicroelectronics UC3843BN is a high-performance, fixed-frequency current-mode controller for boost and flyback topologies. This 8-Mini DIP device offers precise control for step-up and step-down DC-DC conversion with isolation-capable outputs. Featuring a wide operating voltage range of 7.6V to 30V, the UC3843BN operates with switching frequencies up to 500kHz, enabling efficient power conversion in compact designs. The integrated error amplifier and voltage reference provide accurate regulation, while the maximum duty cycle of 96% ensures optimal energy transfer. Its through-hole mounting type and positive output configuration make it suitable for applications in industrial power supplies, consumer electronics, and telecommunications infrastructure. The device is supplied in tube packaging.
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 | 8-DIP (0.300"", 7.62mm) |
| Output Type | Transistor Driver |
| Mounting Type | Through Hole |
| Function | 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-Mini DIP |
| 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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