Xidas EHM-UNIV-1 Energy Harvesting Module

Xidas EHM-UNIV-1 Energy Harvesting Module is a small, turn-key, surface-mount module designed to capture small amounts of harvested energy from sources such as photovoltaic cells and piezoelectric, electro-mechanical, and thermoelectric generators. The EHM-UNIV-1 uses that energy to continuously trickle-charge storage elements such as rechargeable Li-Ion batteries, thin-film batteries, or conventional capacitors. This device is optimized to supply power to small electronic devices and battery-free systems. When utilized with the Xidas RHB-1530 Hybrid Supercapacitor/Lithium Battery, the EHM-UNIV-1 provides the ideal solution for driving wireless sensors.

The EHM-UNIV-1 combines a state-of-the-art Power Management Integrated Circuit (PMIC) with supporting circuitry that reduces the number of required external components, and thus development cost. The signal conditioning provides direct input for DC input sources or built-in rectification circuitry for AC sources. This input conditioning and PMIC allow for energy harvesting from signals as low as 380mV.

The EHM-UNIV-1 provides two independent output voltages, a tunable regulated output voltage (VREG) and an unregulated system voltage (VSYS), proportional to the energy storage level. VREG stems from a low drop-out regulator with up to 150mA, whose output voltage can be set to nine distinct levels by a single external resistor, across the range from 1.5V to 3.6V. The system output voltage allows for an even higher output current (up to 1A), protected by a resettable fuse. This output becomes ideal for wireless devices that require higher surges in current when transmitting or receiving, such as Wi-fi® or cellular.



  • Turn-key module for energy harvesting and power management
  • User-selectable DC or AC input sources with built-in rectification
  • High-current and low-current output voltages with short-circuit and ESD protection
  • Configurable Maximum Power-Point Tracking (MPPT)
  • Over-charge and discharge protection
  • Built-in charge controller for Li-Ion batteries and supercapacitor
  • Compact footprint, plug-and-play design


  • Machine condition monitoring
  • Smart buildings
  • Smart agriculture
  • Smart utilities
  • Wireless sensor networks
  • Cold chain management
  • Smart healthcare
  • Smart Cities


  • Startup threshold w/ RHB1530 battery: 380mV, 6μW
  • Maximum input voltage (VIN): 3.6V
  • Configurable regulated output (VREG): 1.5V to 3.6V, Up to 150mA
  • High current system voltage output (VSYS): Up to 1A (protected by resettable fuse)
  • Operating quiescent current: 510nA
  • Sleeping quiescent current: 390nA
  • Operating junction temperature range: -40°C to +125°C
  • Storage temperature range: -65°C to +150°C
  • 25.75mm x 25.75mm x 3.90mm package

Block Diagram

Xidas EHM-UNIV-1 Energy Harvesting Module

Package Outline

Mechanical Drawing - Xidas EHM-UNIV-1 Energy Harvesting Module
Published: 2021-02-24 | Updated: 2022-07-28