| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
7,500 pcs
|
7500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
73 pcs
|
73 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage | |
| Voltage Supply |
The UC3843D from onsemi is a versatile DC DC Switching Controller designed for various power management applications. This integrated circuit supports both Boost and Flyback topologies, offering flexibility in power supply design. It operates within a supply voltage range of 7.6V to 30V and features a maximum duty cycle of 97%.
The controller is configured for positive, isolation-capable outputs and provides frequency control for precise regulation. It is housed in a surface-mount 14-SOIC package, making it suitable for compact electronic designs. The operating temperature range is from 0°C to 70°C (TA).
Key electrical characteristics include a switching frequency of up to 500kHz and a single output phase. The device is designed with a transistor driver output type and does not utilize synchronous rectification or clock synchronization. Its robust design makes it a reliable component for step-up, step-down, and step-up/step-down power conversion circuits.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range for the UC3843D is 7.6V to 30V.
The maximum switching frequency for the UC3843D is 500kHz.
The maximum duty cycle for the UC3843D is 97%.
The operating temperature range for the UC3843D is 0°C to 70°C.
The UC3843D is available in a 14-SOIC package.
The UC3843D supports Boost and Flyback topologies.