UCC28019A is an 8-Pin Power Factor Correction Controller

This post sponsored by Texas Instruments.

UCC28019A is an 8-pin active Power Factor Correction (PFC) controller that uses boost topology while operating in Continuous Conduction Mode (CCM).

It is compatible with systems that work within a range of 100 W to >2 kW throughout a wide-range universal ac line input. During undervoltage lockout, start-up current is less than 200 μA. Low power standby mode may be controlled by pulling the VSENSE pin below 0.77 V.

There is no need for input line sensing in order to achieve low-distortion wave shaping of the input current. Instead, the average current mode control is used. As a result, the external component count is reduced.

UCC28019A has flexible compensation of voltage and current control loops due to simple external networks. The switching frequency is internally fixed and trimmed to better than ±5% accuracy at 25°C. Fast 1.5-A peak gate current drives the external switch.

Numerous system-level protection features include output over/undervoltage, open-loop detection, peak current limit, soft over-current, and input brown-out. Soft-start limits boost current during start-up.

Applications for the UCC28019A include digital TV, white goods and industrial electronics, home electronics, server and desktop power supplies, as well as CCM Boost Power Factor Correction Power converters.

By: Rachel Kalina

For more information about this product, click here.
For detailed information about the tool mentioned above, click here.
To request a sample, click here.
To download a datasheet, click here.

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