| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
21,271 pcs
|
21271 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
2,295 pcs
|
2295 pcs | On Request | 1 | On Request | On Request | 1527+5 | 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 |
The Texas Instruments UCC3805DTR is a low-power BiCMOS current-mode PWM controller designed for off-line and DC-to-DC switching mode power supplies. It features an adjustable switching frequency up to 1MHz and supports multiple topologies including Buck, Boost, Flyback, and Forward converters.
Key electrical specifications include an operating voltage range of 3.6V to 12V, a maximum duty cycle of 49%, and a typical operating supply current of 500µA. The device incorporates internal features such as soft start, fault soft start, and leading-edge blanking of the current-sense signal. It also provides a 1A totem-pole output with a typical response time of 70ns from current-sense to gate drive output.
Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount package, the UCC3805DTR operates within a temperature range of 0°C to 70°C. Its design offers a minimal parts count for power supply implementations and shares the same pin configuration as the UCx84x family, with added features for enhanced control.
This controller is suitable for various power management applications requiring efficient and stable DC-DC conversion. Its features make it a versatile component for battery-operated systems and other low-power designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.92 | $0.92 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UCC3805DTR operates from 3.6V to 12V.
The operating temperature range is 0°C to 70°C.
The UCC3805DTR is available in an 8-SOIC surface-mount package.
It supports buck, boost, flyback, and forward converter topologies.
The maximum switching frequency is 1MHz.
Yes, it has the same pinout as the UC3842 and UC3842A.