STEVAL-ISV008V1 STMicroelectronics, STEVAL-ISV008V1 Datasheet
STEVAL-ISV008V1
Manufacturer Part Number
STEVAL-ISV008V1
Description
IC LINEAR
Manufacturer
STMicroelectronics
Series
-r
Specifications of STEVAL-ISV008V1
Design Resources
STEVAL-ISV008V1 Schematic STEVAL-ISV008V1 BOM
Main Purpose
Special Purpose DC/DC, Photovoltaic
Outputs And Type
3, Isolated
Power - Output
300W
Voltage - Output
-
Current - Output
-
Voltage - Input
0 ~ 40 V
Regulator Topology
Boost
Frequency - Switching
100kHz
Board Type
Fully Populated
Utilized Ic / Part
SPV1020
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-11419
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISV008V1
Manufacturer:
STMicroelectronics
Quantity:
2
Features
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■
■
■
■
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■
Description
The STEVAL-ISV008V1 demonstration board
contains 3 SPV1020s in the same PCB and is
suitable for the distributed PV panels with 3
isolated strings. The outputs of the 3 SPV1020s
can be connected in parallel (default setting) or in
series, despite the 3 pairs of independent inputs.
The SPV1020, is a monolithic DC-DC boost
converter designed to maximize the power
generated by photovoltaic panels independently
of temperature and amount of solar radiation.
The optimization of the power conversion is
obtained with an embedded logic which performs
the MPPT (max. power point tracking) algorithm
on the PV cells connected to the converter.
One or more converters can be housed in the
connection box of PV panels, replacing the
bypass diodes and, thanks to the fact that the
maximum power point is locally computed, the
efficiency at system level is higher than the one of
conventional topologies, where the MPP is
computed in the main centralized inverter.
May 2011
For further information contact your local STMicroelectronics sales office.
PWM mode DC-DC boost converter
Duty cycle controlled by MPPT algorithm with
0.2% accuracy
Operating voltage range 0-40 V
Overvoltage, overcurrent, overtemperature
protections
Built in soft-start
Up to 98% efficiency
Automatic transition to burst mode for
improved efficiency at low solar radiation
SPI interface
RoHS compliant
300 W PV converter demonstration board to be integrated
into a photovoltaic panel based on the SPV1020
Doc ID 018826 Rev 1
For a cost effective application solution and
miniaturization needs, SPV1020 embeds the
power MOSFETs for active switches and
synchronous rectification, minimizing the number
of external devices. Furthermore, the 4-phase
interleaved topology of the DC-DC converter
allows to avoid the use of electrolytic capacitors,
which would severely limit the lifetime.
It works at fixed frequency in PWM mode, where
the duty cycle is controlled by the embedded logic
running a Perturb&Observe MPPT algorithm. The
switching frequency, internally generated and set
by default at 100 kHz, is externally tunable, while
the duty cycle can range from 5% to 90% with a
step of 0.2%.
Safety of the application is guaranteed by
stopping the drivers in case of output overvoltage
or overtemperature.
STEVAL-ISV008V1
STEVAL-ISV008V1
www.st.com
Data brief
1/4
4
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STEVAL-ISV008V1 Summary of contents
Page 1
... SPI interface ■ RoHS compliant Description The STEVAL-ISV008V1 demonstration board contains 3 SPV1020s in the same PCB and is suitable for the distributed PV panels with 3 isolated strings. The outputs of the 3 SPV1020s can be connected in parallel (default setting series, despite the 3 pairs of independent inputs. ...
Page 2
... Circuit schematic 1 Circuit schematic Figure 1. Circuit schematic 2/4 Doc ID 018826 Rev 1 STEVAL-ISV008V1 ...
Page 3
... STEVAL-ISV008V1 2 Revision history Table 1. Document revision history Date 11-May-2011 Revision 1 Initial release. Doc ID 018826 Rev 1 Revision history Changes 3/4 ...
Page 4
... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 018826 Rev 1 STEVAL-ISV008V1 ...