The UCC2895-Q1 is a phase-shift pulse-width modulation (PWM) controller that implements
control of a full-bridge power stage by phase shifting the switching of one half-bridge with
respect to the other. It allows constant-frequency PWM in conjunction with resonant zero-voltage
switching to provide high efficiency at high frequencies. The device can be used either as a
voltage-mode or current-mode controller.
Although the UCC2895-Q1 maintains the functionality of the UC3875/6/7/8 family and
UC3879, it improves on that controller family with additional features such as enhanced control
logic, adaptive delay set, and shutdown capability. Because it is built using the BCDMOS process,
it operates with dramatically less supply current than its bipolar counterparts. The UCC2895-Q1 can
operate with a maximum clock frequency of 1 MHz.
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