Timer ICs / ASSPs

Introduction – Wireless Power IC

ABLIC Inc. has released an ultra-small wireless transmission control IC which makes it easy to build a small wireless transmission system and is ideal for wearable devices.



  • Transmitter: Usable USB 5V power supply (S-8474)
  • Capable of receiving 100mA@5V (S-8471)
  • Charge function to a lithium-ion rechargeable battery (S-8473)
  • Transmission status display function (continuous operation mode / intermittent operation mode)
  • Over temperature protection function by a thermistor
  • Ultra-small package

1. Circuit configuration example

When using S-8474 in transmission control, and S-8473 in reception control

Ultra-small Wireless Power IC Module example

2. Product lineup

Item S-8471 S-8473 S-8474
Purpose Reception control Reception
Feature Constant voltage output With charge function to a lithium-ion rechargeable battery
(Charge current: 33mA)
Continuous operation / Intermittent operation switch function
Operation voltage* 0.95 to 6.5V 2.2 to 5.0V 4.5 to 6.5V
Current consumption
during operation*
30μA typ. 250μA typ. 200μA typ.
Package SNT-8A SNT-8A SNT-8A

3. Applications

Wireless Power IC Applications. Smartwatch, Module example, Headset Activity meter, Receiver module for evaluation, Card shaped device, Glass-like device

4. Module example

Wireless Power IC Module example: Receiver module for evaluation, Transmitter module for evaluation