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242 pcs
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242 pcs | On Request | 1 | On Request | On Request | N/A | On Request | On Request |
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| Halogen Free | |
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| SVHC Present |
The Texas Instruments UCC2818D is a BiCMOS Power Factor Preregulator controller designed for active power factor correction. It controls a boost preregulator to achieve near-unity power factor by shaping the AC input line current waveform to match the AC input line voltage.
Key electrical specifications include an operating frequency range of 6 kHz to 220 kHz, a typical start-up current of 150 μA, and an operating voltage with UVLO (Under-Voltage Lockout) at 10.5V/10V for the UCC2818. It also features a nominal reference voltage of 7.5V and can operate up to 18V.
This controller is suitable for applications such as PC power, consumer electronics, lighting, and industrial power supplies, particularly for IEC6100-3-2 compliant supplies less than 300W. The device is available in a 16-pin SOIC package.
Features include over-voltage protection, accurate power limiting, average current mode control, improved noise immunity, and improved feed-forward line regulation. It utilizes leading-edge modulation to reduce ripple current in the bulk capacitor.
The operating frequency range for the UCC2818D is from 6 kHz to 220 kHz.
The typical start-up current for the UCC2818D is 150 μA.
The UVLO voltages for the UCC2818D are 10.5 V (minimum) and 10 V (maximum).
The reference voltage for the UCC2818D is 7.5 V.
The UCC2818D is available in a SOIC package.