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7 pcs
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7 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The Texas Instruments UCC38500N is an integrated circuit designed for active power-factor correction (PFC) and second-stage DC-to-DC conversion. It achieves near-unity power factor by shaping the AC input line current waveform to match the AC input-line voltage using average current-mode control.
The controller integrates PFC and downstream converter controls, offering features like accurate power limiting and improved feedforward line regulation. The second stage utilizes peak current-mode control for step-down power conversion. Modulation techniques include leading-edge for the PFC stage and trailing-edge synchronization for the second stage to minimize overlap between switches and reduce output capacitor ripple current.
Key electrical specifications include a supply voltage range of 9.7V to 18V, a low start-up supply current of 150µA, and a switching frequency of 100kHz. The operating temperature range is 0°C to 70°C. The UCC38500N is housed in a 20-DIP (0.300", 7.62mm) through-hole package.
This device is suitable for applications requiring efficient power factor correction and DC-to-DC conversion, commonly found in power supplies for consumer electronics, industrial equipment, and medical instruments.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 9.7V to 18V.
The operating temperature range is 0°C to 70°C.
The switching frequency is 100kHz.
It is available in a 20-DIP (0.300", 7.62mm) through-hole package.
The RoHS status is RoHS3 Compliant.