The UCC2895-EP 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.

While the UCC2895-EP maintains the functionality of the UC2875/6/7/8 family, it improves on that controller family with additional features, such as enhanced control logic, adaptive delay set, and shutdown capability. Since the device is built in BCDMOS, it operates with dramatically less supply current than its bipolar counterparts. The UCC2895-EP can operate with a maximum clock frequency of 1 MHz.

The M-temp UCC2895-EP device is offered in the 20-pin SOIC (DW) package.

• Programmable Output Turn-On Delay
• Adaptive Delay Set
• Bidirectional Oscillator Synchronization
• Capability for Voltage-Mode or Current-Mode Control
• Programmable Soft Start/Soft Stop and Chip Disable Via a Single Pin
• 0% to 100% Duty-Cycle Control
• 7-MHz Error Amplifier
• Operation to 1 MHz
• Low Active Current Consumption (5 mA Typ at 500 kHz)
• Very Low Current Consumption During Undervoltage Lock Out (150 µA Typ)
• SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Available in Military (–55°C/125°C) Temperature Range(1)
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

(1) Additional temperature ranges available - contact factory