DESCRIPTION
NN32251A is a wireless power system controller IC which is compliant with Qi version 1.1 of the System Description Wireless Power Transfer, Volume 1 for Low Power, defined by Wireless Power Consortium.

FEATURES
● Integrated wireless power transmitter controller
● WPC Ver. 1.1 ready
● MCU embedded
● Half-bridge gate driver ： 4ch (full-bridge gate driver ： 2ch also configurable)
● Single-coil (Type A11) supported
● Expanded free positioning using multi-coils up to 4 coils (Type A6)
● Highly accurate voltage and current monitor for inverters
● Output controlled by frequency or duty, defined in Qi.
● ASK demodulation for both current and voltage signals (Qi compliant)
● Input voltage range : VADP, VINV : 4.6 to 19.5V
● Supports Under Voltage Lockout , Thermal Shutdown, Over Current Detection
● Short-circuit protection at inverter output
● Temperature Detecting Circuit ： 3ch
● LED indicator ： 2ch
● package ： 64 pins HQFP (size : 12mm x 12mm)

APPLICATIONS
● WPC-compliant wireless charger