Highly Integrated Wireless Power Transmitter

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 Block Diagram

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.

Dialog Semiconductor DA4100

Ultra-small RF antenna-based solution

Improved spatial and orientation freedom

Secure pairing of the transmitter and device-under-charge

Eliminates connectors and charging contacts

Enables fully sealed waterproof design


Fitness Bands

Hearing Aids

Bluetooth Headsets

Bluetooth Trackers

Smart Pens

Remote Controls