SPV1050 charger Datasheet

SPV1050 Datasheet PDF, Equivalent


Part Number

SPV1050

Description

Ultralow power energy harvester and battery charger

Manufacture

STMicroelectronics

Total Page 30 Pages
PDF Download
Download SPV1050 Datasheet PDF


SPV1050
SPV1050
Ultralow power energy harvester and battery charger
VFQFPN 3 x 3 x 1 mm 20L
Die form
Features
Transformerless thermoelectric generators
and PV modules energy harvester
High efficiency for any harvesting source
Up to 70 mA maximum battery charging current
Fully integrated buck-boost DC-DC converter
Programmable MPPT by external resistors
2.6 V to 5.3 V trimmable battery charge voltage
level (± 1% accuracy)
2.2 V to 3.6 V trimmable battery discharge
voltage level (± 1% accuracy)
Two fully independent LDOs (1.8 V and 3.3 V
output)
Enable/disable LDO control pins
Battery disconnect function for battery
protection
Battery connected and ongoing charge logic
open drain indication pins
Applications
Charge any battery type, including lithium
based, solid state thin film and super-capacitor.
WSN, HVAC, building and home automation,
industrial control, remote metering, lighting,
security, surveillance.
Wearable and biomedical sensors, fitness.
Datasheet - production data
Description
The SPV1050 is an ultralow power and high-
efficiency energy harvester and battery charger,
which implements the MPPT function and
integrates the switching elements of a buck-boost
converter.
The SPV1050 device allows the charge of any
battery, including the thin film batteries, by tightly
monitoring the end-of-charge and the minimum
battery voltage in order to avoid the
overdischarge and to preserve the battery life.
The power manager is suitable for both PV cells
and TEG harvesting sources, as it covers the
input voltage range from 75 mV up to 18 V and
guarantees high efficiency in both buck-boost and
boost configuration.
Furthermore the SPV1050 device shows very
high flexibility thanks also to the trimming
capability of the end-of-charge and undervoltage
protection voltages. In such way any source and
battery is matched.
The MPPT is programmable by a resistor input
divider and allows maximizing the source power
under any temperature and irradiance condition.
An unregulated voltage output is available (e.g. to
supply a microcontroller), while two fully
independent LDOs are embedded for powering
sensors and RF transceivers. Both LDOs (1.8 V
and 3.3 V) can be independently enabled through
two dedicated pins.
May 2018
This is information on a product in full production.
DocID025569 Rev 5
1/36
www.st.com

SPV1050
Contents
Contents
SPV1050
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 Battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Boost configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 Buck-boost configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.4 MPPT setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.5 Power manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.1 VFQFPN20 3 x 3 x 1 mm - 20-lead pitch 0.4 package information . . . . . 28
8 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix A Application tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2/36 DocID025569 Rev 5


Features SPV1050 Ultralow power energy harvester and battery charger VFQFPN 3 x 3 x 1 mm 20L Die form Features  Transfor merless thermoelectric generators and P V modules energy harvester  High eff iciency for any harvesting source  U p to 70 mA maximum battery charging cur rent  Fully integrated buck-boost DC -DC converter  Programmable MPPT by external resistors  2.6 V to 5.3 V t rimmable battery charge voltage level ( ± 1% accuracy)  2.2 V to 3.6 V trim mable battery discharge voltage level ( ± 1% accuracy)  Two fully independe nt LDOs (1.8 V and 3.3 V output)  En able/disable LDO control pins  Batte ry disconnect function for battery prot ection  Battery connected and ongoin g charge logic open drain indication pi ns Applications  Charge any battery type, including lithium based, solid st ate thin film and super-capacitor.  WSN, HVAC, building and home automation , industrial control, remote metering, lighting, security, surveillance.  Wearable and biomedical sensors, fitness. Datasheet - .
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