UCC3895 - BiCMOS Advanced Phase-Shift PWM Controller SOIC-20 IC

UCC3895 - BiCMOS Advanced Phase-Shift PWM Controller SOIC-20 IC

The UCC3895 is a phase-shift 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. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller. While the UCC3895 maintains the functionality of the UC3895 it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability.

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• Programmable-output turn on delay
  

• Adaptive delay set
  

• Bidirectional oscillator synchronization
  

• Voltage-mode, peak current-mode, or average current-mode control
  

• Programmable soft start, soft stop, and chip disable via a single pin
  

• 0% to 100% duty-cycle control
  

• Typical 5-mA operating current at 500 kHz
  

• Very low 150-μA current during UVLO
  

Specifications of UCC3895 - BiCMOS Advanced Phase-Shift PWM Controller SOIC-20 IC

• Phase-shifted full-bridge converters
  

• Off-line, telecom, data com, and servers
  

• Distributed power architecture
  

• High-density power modules
  

Package Includes

• 1 x UCC3895 - BiCMOS Advanced Phase-Shift PWM Controller SOIC-20 IC