STEVAL-ISV019V1 Datasheet, PDF (1/9 Pages) STMicroelectronics – Evaluation board for SPV1050 ULP energy harvester and battery

STEVAL-ISV019V1
Evaluation board for SPV1050 ULP energy harvester and battery
charger – boost configuration
Data brief
Features
• First startup at Vin = 500 mV
• Input voltage working range:
150 mV ≤ Vin ≤ V_EOC
• End of charge battery voltage: V_EOC = 4.25 V
• Battery undervoltage protection: V_UVP = 3.7 V
Applications
• Charge any battery chemistry, including lithium
based, NiMH, solid state thin film and
supercapacitor.
• WSN, HVAC, building and home automation,
industrial control, access control, smart
lighting, asset and livestock positioning and
tracking, surveillance.
• Body area network, sportswear, fitness.
Description
The STEVAL-ISV019V1 is an evaluation board
based on the ultralow power energy harvester
and battery charger SPV1050. For any detail
related to the SPV1050 features and
performances please refer to the datasheet.
The evaluation board implements the boost
configuration of the DC-DC converter and has the
purpose of enhancing the SPV1050 based
applications development by testing the silicon
performance thanks to many jumpers and test
points, and by helping to find out the best system
configuration to make the SPV1050 device
working at the most of efficiency.
The STEVAL-ISV019V1 is optimized to:
Harvest energy from PV panels supplying
0.5 V ≤ V_MP ≤ 2.5 V and 30 µA ≤ I_MP ≤ 20 mA.
Charge a battery with 3.7 V undervoltage
protection threshold (V_UVP) and 4.2 V end of
charge voltage threshold (V_EOC).
Nevertheless, few easy changes on the
application components (input and output resistor
partitioning, C_IN capacitor) allow to use a different
PV panel and source (like TEG), and a battery by
setting the V_{MPP_SET}, the V_UVP and the V_EOC
thresholds according to the new source and load.
More in detail, operating ranges can be extended
as follows: V_MP from 150 mV up to 5 V, I_MP up to
100 mA, V_UVP down to 2.2 V and V_EOC up to
5.3 V.
November 2014
DocID025591 Rev 3
For further information contact your local STMicroelectronics sales office.
1/9
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