Timer ICs / ASSPs

Wireless Power Transmitter Control IC S-8474 Series

The S-8474 Series is Wireless Power Transmitter Control IC, which is configured with an ON time control circuit, an OFF time control circuit, a reception detection circuit, a UVLO circuit, a high temperature detection circuit, etc.


Power supply voltage
Vdd = 4.5 V to 6.5 V
Current consumption
During operation: ISS1 = 200 μA typ.
During standby: ISTB = 3.0 μA max.
UVLO detection voltage
VUVLO− = 4.1 V typ.
tON time is settable by connecting an external resistor to the RTON pin.
Power saving is possible by intermittent operation during standby time of a receiver module.
Active time: tACT = 5.0 ms typ.
Sleep time: tSLEEP = 25.0 ms typ.
TH pin detection voltage is selectable
0.667 V, 0.577 V, 0.500 V, 0.429 V, 0.370 V
Built-in reception detection circuit
Status display function
Available by connecting an external LED to the STATUS pin.
Continuous operation mode: Lighting
Intermittent operation mode: Lights-out
High temperature protection mode: Blinking
Over temperature protection function
Available by connecting a thermistor to the TH pin.
Operation temperature range
Ta = −40°C to +85°C
Lead-free (Sn 100%), Halogen-free


  • Device for wireless power
  • Small-sized wireless charging system