P9025AC
P9025AC is Qi Wireless Power Receiver manufactured by Renesas.
5W, Qi Wireless Power Receiver with Integrated Rectifier and LDO Output
Features
- Integrated Single Chip Receiver (Rx) Solution
- Integrated Full-Bridge Synchronous Rectifier
- Integrated 5.3V, 1A LDO Regulator Output
- WPC-1.1.2 pliant
- Advanced WPC v1.1.2 Foreign Object Detection (FOD)
- Programmable FOD setting via external resistor
- Closed-loop power transfer control between Tx and Rx
- Support I2C interface with access to:
- Rectifier voltage
- Output current
- Resonance frequency
- Open-Drain LED Indicator Output
- Over-Temperature/Voltage/Current Protection
- 0° to +85°C temperature range
- 5 x 5 mm 32-VFQFPN package
Applications
- PC peripherals
- Rugged electronic gear
- Small appliances
- Battery-powered electronics
Introduction
The P9025AC is an integrated single-chip, WPC-1.1.2 pliant wireless power receiver with an advanced Foreign Object Detection (FOD) feature. This device operates with an AC power signal from a resonant tank and converts it into a regulated 5.3V output voltage. The receiver includes a high efficiency Synchronous Full Bridge Rectifier and 5.3V tracking LDO output stage. The P9025AC automatically detects the transmitter’s presence and initiates WPC AC modulation munication protocols with optimal efficiency.
The device includes the control circuit required to modulate the load to transmit WPC-pliant message packets to the base station. It uses minimal external ponents to reduce overall solution area and costs.
The P9025AC employs advanced programmable WPC FOD techniques to detect foreign metallic objects placed on the transmitter base station derived from a transmitted and received power transfer algorithm.
Typical Application Circuit
CBST1 CCLAMP1
BST1 CLAMP1
CS CMOD1 ACM1...
