ICs for Wireless Charging System

Part NameOrderPackage
Type
RemarksChIout
(A)
max.
Iout
(mA)
max.
Vin
(V)
min.
Vin
(V)
max.
Vo
(V)
max.
Vout
(V)
min.
Vout
(V)
max.
Freq.
(kHz)
max.
Istb
(μA)
typ.
Iq
(μA)
typ.
Tj-opr
(°C)
RAA458100GNPcontactUQFN-40-------------20 to +80
RAA457100GBMcontactWLBGA-41-------------20 to +70

Wireless charging solution is suitable for the wearable market which are required small size and high efficiency for long life battery.

A wireless charging system consists of power receiving and charge/discharge system and power transmitter system.

The feature of power receiving and charge/discharge system IC RAA457100 is integrated all functions needed for a wireless chargeing,  rectification, charging control for small Lithium-Ion battery and top level of power-efficiency DC-DC converter in a singl chip as 3.22mm x 2.77mm small package.

The features of power transmitter IC RAA458100 is integrated functions such as gate driver and power transmitter control circuit.