Product overview
Description
The SPV1050 is an ultra-low power and high-efficiency power manager embedding four MOSFETs for boost or buck-boost DC-DC converter and an additional transistor for the load connection/disconnection. An internal high accuracy MPPT algorithm can be used to maximize the power extracted from PV panel or TEG. The internal logic works to guarantee tight monitoring of both the end-of-charge voltage (VEOC) and the minimum battery voltage (VUVP) by opening the pass-transistor at triggering of the VEOC threshold or at triggering of the VUVP threshold to preserve the battery life. Both the VEOC and VUVP thresholds can be trimmed by external resistors connected between the STORE rail and the EOC and UVP pins, respectively. In boost configuration (CONF pin connected to the supply source), the IC requires 550 mV and 30 μA to Cold start; while after the first start-up the input voltage can range between 150 mV and VEOC. In buck-boost configuration (CONF pin connected to ground), the IC requires 2.6 V and 5 μA at Cold start; while after the first start-up input voltage can range between 150 mV up to 18 V. The STORE pin is available as unregulated voltage output (e.g. to supply by external LDO a micro-controller), while two fully independent LDOs (1.8 V and 3.3 V) are embedded for powering other companion ICs like MCU, sensors or RF transceivers. Both LDOs can be independently enabled through the related pins.
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All features
- Transformerless thermoelectric generators and PV modules energy harvester
- High efficiency for any harvesting source
- Up to 70 mA output current
- Fully integrated MOSFETs for Boost or Buck-boost configurations
- Selectable enable/disable MPPT functionality
- Programmable MPPT by external resistors
- 2.6 V to 5.3 V trimmable output overvoltage level (± 1% accuracy)
- 2.2 V to 3.6 V trimmable output undervoltage level (± 1% accuracy)
- Two fully independent LDOs (1.8 V and 3.3 V output)
- Enable/disable LDO pins
- Load disconnect function (by-pass transistor open) prior the first start-up (Cold Start) to avoid battery lifetime shortening
- Battery Connected and DC-DC switching open drain indication pins
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Product Specifications (1)
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8.0 | 03 Apr 2024 | 03 Apr 2024 |
Application Notes (4)
Resource title | Version | Latest update | ||
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1.0 | 18 Dec 2024 | 18 Dec 2024 | ||
2.0 | 18 Dec 2024 | 18 Dec 2024 | ||
2.0 | 18 Dec 2024 | 18 Dec 2024 | ||
1.0 | 19 May 2022 | 19 May 2022 |
Application Notes for related Tools & Software (3)
Resource title | Version | Latest update | ||
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2.0 | 18 Dec 2024 | 18 Dec 2024 | ||
2.0 | 18 Dec 2024 | 18 Dec 2024 | ||
1.0 | 19 May 2022 | 19 May 2022 |
Presentations (1)
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1.0 | 01 Aug 2015 | 01 Aug 2015 |
Flyers (1)
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09.2017 | 09 Mar 2022 | 09 Mar 2022 |
EDA Symbols, Footprints and 3D Models
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SPICE models (1)
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ZIP | 1.0 | 01 Aug 2015 | 01 Aug 2015 |
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
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SPV1050-WST | Preview | TESTED USWF | Industrial | N/A | |
SPV1050TTR | Active | VFQFPN 20 3x3 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
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min | max | |||||||||||||
SPV1050TTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
SPV1050-WST | | | distributors No availability of distributors reported, please contact our sales office |
SPV1050TTR Active
SPV1050-WST Preview
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors