| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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2,500 pcs
|
2500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Clock Sync | |
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| Duty Cycle (Max) | |
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| Output Current | |
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| Synchronous Rectifier | |
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| Voltage |
The Texas Instruments UCC3581D is a micropower voltage mode PWM controller suitable for low power isolated DC-DC converters, such as those used in Subscriber Line Power for ISDN I.430. Primarily utilized in single switch forward and flyback converters, this controller features BiCMOS circuitry for low startup and operating current.
Key electrical specifications include an operating voltage range of 6.8V to 15V, a maximum duty cycle of 83%, and an output current capability of 1A. It operates at frequencies up to 100kHz and offers control features such as current limit, enable, frequency control, and soft start. The device supports Buck, Boost, Flyback, and Forward converter topologies.
Packaged in a 14-SOIC surface mount configuration, the UCC3581D operates within a temperature range of 0°C to 70°C. Its design incorporates features for maximizing light load efficiency, including a programmable minimum duty cycle with cycle skipping and programmable soft start circuitry. The controller also provides external oscillator synchronization capability.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.31 | $2.31 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UCC3581D operates from 6.8V to 15V.
The UCC3581D is available in a 14-SOIC surface mount package.
The operating temperature range is 0°C to 70°C.
The UCC3581D can deliver 1A peak source and sink current.
The UCC3581D supports buck, boost, flyback, and forward converter topologies.
The switching frequency is up to 100kHz.
Control features include current limit, enable, frequency control, and soft start.