DA4100 –  WattUp® Wireless Power Transmitter – Charger

DA4100 – WattUp® Wireless Power Transmitter – Charger


DA4100 is a highly integrated System-on-Chip WattUp RF-transmitter IC designed to provide optimal charging of WattUp receiver devices. It forms the core of the Near Field WattUp transmitter system and is designed to charge a range of devices fitted with WattUp receivers. It features the RF transmitter, power management and integrated DC-DC supply, delivering a complete WattUp transmitter system solution.  Applications include the wireless charging of low-power, battery-powered devices, such as wearables, fitness trackers, hearables, hearing aids, Bluetooth® trackers, smart pens and other devices.


  • DA4100 integrates most of the functions required to form a complete WattUp transmitter system including an ARM Cortex® M0+ processor, RAM, ROM, crystal oscillator, Low Profile Oscillator (LPO), clock divider, Phase-Lock Loop (PLL), RF converter, Variable Gain Amplifier (VGA), Power Detectors (PD), DC-DC, LDO’s, I2C, UART, SPI, GPIOs, ADCs and DACs.
  • Embedded secure element for 2-way authentication with 128bit encryption.
  • The device only requires an external crystal and power amplifier and operates directly from a 3.3V power supply.


  • RF/antenna-based solution
  • Smaller antenna than coil-based designs
  • Improved spatial and orientation freedom
  • Eliminates connectors and charging contacts
  • Enables fully sealed waterproof design
  • Enables distance charging

more information: https://www.dialog-semiconductor.com/products/wireless-charging/da4100

About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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