Highly-efficient, regulated dual-outputs, ambient energy manager for TEG with optional primary battery
Product Features:
Ultra-low-power start-up:
– Cold start from 60 mV input voltage and 150µW input power with the optional external module (typical)
– Cold start from 380 mV and 100 µW input power without the optional external module (typical)
Ultra-low-power boost regulator:
– Open-circuit voltage sensing for MPPT every 21s
– Configurable MPPT with 2-pin programming
– Selectable Voc ratios of 50, 55 or 75 %
– Input voltage operation range from 50 mV to 5V
– MPPT voltage operation range from 50 mV to 5V
– Constant impedance matching (ZMPPT)
Integrated 1.2/1.8 V LDO regulator:
– Up to 20 mA load current
– Power gated dynamically by external control
– Selectable output voltage
Integrated 1.8/2.5/3.3 V LDO regulator:
– Up to 80 mA load current with 300 mV drop-out
– Power gated dynamically by external control
– Selectable 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
Optional primary battery:
– Automatically switches to the primary battery when the secondary battery is exhausted
Integrated balun for dual-cell supercapacitor
Applications:
> TEG harvesting
> Smart agriculture
> Industrial monitoring
> Wireless sensor nodes
> Home automation
Product Matrix:
Vin: 50mV to 5V
Cold-Start: 60mV 150µW
Pin: 3µW to 400mW
Pout: 20mA@1.2-1.8V 80mA@1.8-2.5-3.3V
MPPT: Yes
Package: QFN28 5x5mm
