ETEK’S High-Efficiency Power Management IC Unlocks Maintenance-Free IoT with Energy Harvesting

Wondering how to extend the lifespan of your IoT devices and avoid frequent battery changes altogether? ETEK introduces the ET95640 Power Management IC (PMIC), a breakthrough solution that harvests ambient energy to power wearables, sensors, and other ultra-low-power applications indefinitely.

The ET95640 Power Management IC is more than a standard chip; it’s a fully integrated energy-harvesting power management system. It efficiently extracts energy from weak sources like ambient light, converting it into a reliable power source to keep your products running——eliminating battery replacement and enabling truly sustainable design.

Why Your Design Needs This Energy-Harvesting ETEK Power Management IC

In the IoT landscape, power is everything. Traditional batteries inevitably run out, leading to expensive maintenance and environmental waste. The ET95640 Power Management IC solves this problem by harvesting energy from high-impedance weak sources. This ETEK chip can extract energy from:

✔️Photovoltaic (Solar) cells

✔️Thermoelectric Generators (TEG)

✔️Other weak energy environments

By using this Power Management IC, you can support various rechargeable batteries, including Lithium-ion, Lithium-polymer, and even supercapacitors. ETEK ensures that your device always has a reliable reservoir of power.

Industry-Leading Cold Start and Efficiency Features

One of the biggest challenges for any energy-harvesting PMIC is cold start from a depleted battery. The ET95640 excels with an ultra-low cold-start voltage of only 275mV (5µW).

Key technical highlights of this ETEK Power Management IC include:

✔️High Efficiency: The integrated Buck converter boasts an efficiency of over 90%.

✔️Low Leakage: <10nA battery current in shipping mode, preserving shelf life for years.

✔️Dual Charging Flexibility: Combine ambient energy harvesting with a standard 5V linear charger for design versatility.

Versatile Applications for the ETEK Power Management IC

The ET95640 enables maintenance-free operation across a range of key applications:

✔️Remote Controls: Eliminate the need for AAA batteries by using indoor light.

✔️Electronic Shelf Labels (ESL): Reduce retail labor costs with long-lasting ETEK digital tags.

✔️Wearable Devices: Create slimmer designs with smaller batteries that charge on the go.

✔️Wireless Keyboards: Use ambient light to keep peripherals powered indefinitely via the ETEK Power Management IC.

Technical Integration and Pin Configuration

For engineers interested in integrating this Power Management IC into their PCB designs, the ET95640 comes in a compact QFN24 (4mm x 4mm) package. Below, you will find an image showcasing a well-organized layout. It includes dedicated pins for GPIO configuration, allowing you to set output voltages and battery protection thresholds easily through the ETEK interface.

The circuit diagram reveals a minimal external component count. With only a few inductors and capacitors, the ET95640 Power Management IC effectively manages the energy flow from the solar cell (PV_CELL) to the system (SYS) and the battery (BAT) simultaneously.

Conclusion: Future-Proof Your Products with ETEK

The ET95640 is the epitome of sustainable electronics for the future. Choosing this ETEK Power Management IC, you are not just selecting a component; you’re enabling a future of maintenance-free, eco-conscious IoT products. 

Ready to revolutionize your power design? Reach out to ETEK today to request a sample or a technical consultation for the ET95640 Power Management IC.

marketing@etekmicro.com