SPV1050 datasheet(1/36 Pages) STMICROELECTRONICS

部件名	SPV1050

功能描述	Ultralow power energy harvester and battery charger

PDF	36 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 36 page

This is information on a product in full production.

August 2015

DocID025569 Rev 4

1/36

SPV1050

Ultralow power energy harvester and battery charger

Datasheet

- production data

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.

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.

VFQFPN 3 x 3 x 1 mm 20L

Die form

www.st.com

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