ADI ADP1048ARQZ-R7

The ADP1048W is a digital power factor correction (PFC) controller that provides accurate input power metering capability and inrush current control for ac/dc systems. The device is designed for single phase PFC applications, especially interleaved and bridgeless PFC applications. The digital PFC function is based on a conventional boost PFC with multiplication of the output voltage feedback combined with the input current and voltage to provide optimum harmonic correction and power factor for ac/dc systems. All signals are converted into the digital domain to provide maximum flexibility; all key parameters can be reported and adjusted via the PMBus interface. The ADP1048W allows users to optimize system performance, maximize efficiency across the load range, and reduce design time to market. The ADP1048W provides accurate rms measurement of input voltage, current, and power. This information can be reported to the microcontroller of the power supply via the PMBus interface.

• Qualified for automotive applications
• Flexible digital power factor correction (PFC) controller
• Interleaved and bridgeless operation
• True rms ac power metering
• Enhanced dynamic response
• Optimized light load efficiency performance
• Output voltage adjustment
• Frequency reduction
• Inrush current control
• Switching frequency spread spectrum for improved EMI
• External frequency synchronization
• PMBus compliant
• Programmable ac line fault detection and protection
• Programmable output fault detection and protection
• Extensive fault protection for high reliability systems
• Frequency range from 30 kHz to 400 kHz
• 8 kB EEPROM
• Programming via easy-to-use graphical user interface (GUI)

• AC/DC power supplies for applications
• Computing server and storage
• Network and communication infrastructure
• Industrial and medical