e-Peas Semiconductors AEM10941

Description

The AEM10941 is an integrated energy management circuitthat extracts DC power from up to 7-cell solar panels to si-multaneously store energy in a rechargeable element and sup-ply the system with two independent regulated voltages. TheAEM10941 allows to extend battery lifetime and ultimatelyeliminates the primary energy storage element in a large rangeof wireless applications, such as industrial monitoring, geoloca-tion, home automation, e-health monitoring and wireless sen-sor nodes.

Features

• Ultra-low power start-up:
• Cold start from 380 mV input voltage and 3 μW input power (typical)
• Ultra-low power boost regulator:
• Open-circuit voltage sensing for MPPT every 5 s
• Configurable MPPT with 2-pin programming
• Selectable Voc ratios of 70, 75, 85 or 90 %
• Input voltage operation range from 50 mV to 5 V
• MPPT voltage operation range from 50 mV to 5 V
• Integrated 1.2/1.8 V LDO regulator:
• Up to 20 mA load current
• Power gated dynamically by external control
• Selectable output voltage
• Integrated 1.8 V-4.1 V LDO regulator:
• Up to 80 mA load current with 300 mV drop-out
• Power gated dynamically by external control
• Selectable or adjustable output voltage
• Flexible energy storage management:
• Selectable overcharge and overdischarge protection
• For any type of rechargeable battery or (super)capacitor
• Fast supercapacitor charging
• Warns the load when battery is running low
• Warns when output voltage regulators are available

Typical applications

• PV cell harvesting
• Wireless sensor nodes
• E-health monitoring
• Industrial monitoring
• Home automation, Geolocation

More information

• IC product information