Products - GPMQ8102A

General Description

GPMQ8102A is a single-chip, advanced, flexible, secondary-side device for wireless power transfer in portable applications up to 4W with high integration, high efficiency, and low power consumption advantages.  GPMQ8102A receives the power that uses the near field electromagnetic induction principle; the power transfer is through coupling between the transmitter coil (primary) and receiver coil (secondary). Global feedback is established from the secondary to the primary to control the power transfer process using the Qi V1.3 protocol.  GPMQ8102A is integrated a low resistance synchronous rectifier (AC to DC), low-dropout regulator (LDO), digital control, and accurate voltage and current loops to improve the high efficiency and decrease the power dissipation.  GPMQ8102A is also integrated a digital controller that complies with the WPC V1.3 standard and can calculate the amount of power received by the mobile device; the controller then communicates this information to the transmitter that allows the transmitter to determine if a foreign object is present within the magnetic interface and introduces a higher level of safety within magnetic field. This foreign object detection (FOD) is part of requirement under the WPV v1.3 specification.  GPMQ8102A output stage is LDO and the output voltage is adjusted dynamically according to the output current to achieve the best transient and efficiency.

Features

• Integrated Wireless Power Supply Receiver Solution
  • High Efficiency Full Synchronous Rectifier
  • Output Voltage Conditioning
  • WPC Qi V1.2.4 Compliant communication
  • Control
  • Single IC Required Between RX Coil and Output
• WPC Qi V1.2.4 FOD Function
• Dynamic Rectifier VRECT
  • Improves the Load Transient Response
  • Optimizes the dynamic efficiency for full load output
• Rectifier Overvoltage Clamp (VOVP=15V)
• Supports 20 V Maximum Input
• Over Temperature, Over Voltage and Over Current Protection
• Open Drain LED Output Indication
• Charge Complete and Fault Host Control
• Compatible with Adapter and USB Input Application
• QFN 4mm*4mm 24-pin Package