This document describes a digital power factor correction (PFC) controller with accurate AC power metering. The controller is flexible and suitable for single-phase applications, with features including true RMS AC power metering, enhanced dynamic response, and optimized light load efficiency performance.
The ADP1047 is a digital power factor correction (PFC) controller that provides accurate AC power metering, inrush control, and programmable fault protection. It operates from a single 3.3 V supply and is available in a 24‑lead QSOP package.
The document includes functional block diagrams, pin configuration tables, electrical specifications, absolute maximum ratings, and ESD precautions, enabling designers to integrate the device into AC/DC power supplies for computing, networking, industrial, and medical applications.
| Operating Supply Voltage (Vop) | 3.0 V – 3.6 V |
|---|---|
| Supply Current (normal operation) | 17 mA |
| Peak Supply Current (EEPROM programming) | 27 mA – 37 mA |
| Switching Frequency Range | 30 kHz – 400 kHz |
| EEPROM Size | 8 kB |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 24‑lead QSOP |
The ADP1047 operates with a supply voltage between 3.0 V and 3.6 V.
The device includes an 8 kB EEPROM for storing programmed values.
The programmable switching frequency can be set from 30 kHz up to 400 kHz.
It is rated for operation from –40 °C to +85 °C.