Inductorless energy harvesting PMIC with battery protection, LDO, USB charging and I²C
NEH7100BU
The NEH7100 is a high-performance power management IC (PMIC) for energy harvesting solutions in low-power applications. It has a rich set of auxiliary features, such as storage element protection, USB charging and LDO / load switch.
The NEH7100 is optimized to harvest energy from light sources (from a wide range of indoor and outdoor PV cells). Other energy sources can also be used, such as kinetic (movement, vibrations), thermal variation and electromagnetic, but might need external auxiliary components. The NEH7100 gathers energy from a suitable harvester to charge a storage element, such as a rechargeable battery or a supercapacitor.
Nexperia’s advanced maximum power point tracking (MPPT) uses an embedded hill-climbing algorithm to deliver maximum power to the storage element. The MPPT is compatible with any suitable harvester, and optimizes efficiency as frequent as every 0.5 seconds for excellent performance in rapidly changing harvesting conditions.
The NEH7100 is available in 28-lead, 4 mm x 4 mm HVQFN28 package.
Features
- Harvesting power range: 15 μW to 50 mW
- Ultra-fast MPPT interval
- Battery protection features:
- Over-voltage protection (OVP)
- Low-voltage detection (LVD)
- Over-current protection (OCP)
- USB charging up to 200 mA
- LDO with configurable output voltage
- Configurable via hard-coding or I²C
- Coldstart, supporting “battery-less” design
- Small BOM with no inductor required
- Suitable for batteries, supercapacitors and hybrid capacitors
Applications
- Smart remote controls: TV, gaming, AV control, key-fob
- Wireless PC devices: keyboard, mouse, headphones
- Industrial sensors: electronic shelf labels, asset trackers and beacons
- Tire pressure sensors
- Wearable devices: watch, body band and health devices
