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.

Features

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

Applications

Machine condition monitoring
Smart buildings
Smart agriculture
Smart utilities

Wireless sensor networks
Cold chain management
Smart healthcare
Smart Cities

Specifications

Startup threshold w/ RHB1530 battery: 380mV, 6μW
Maximum input voltage (V_IN): 3.6V
Configurable regulated output (V_REG): 1.5V to 3.6V, Up to 150mA
High current system voltage output (V_SYS): 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