STEVAL-ISV009V1 STMicroelectronics, STEVAL-ISV009V1 Datasheet - Page 42

• Manufacturer Part Number: STEVAL-ISV009V1
• Description: Power Management Modules & Development Tools DUAL STG DC/AC CNVRT DEMO BRD
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of STEVAL-ISV009V1

• Design Resources: STEVAL-ISV009V1 BOM STEVAL-ISV009V1 Schematic
• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 36V
• Current - Output: -
• Voltage - Input: -
• Regulator Topology: Boost
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: SPV1020
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ISV009v1 application connection
Appendix A
42/52
The following figure shows how to connect ISV009V1 to photovoltaic panel.
Figure 27. ISV009v1 application schematic
It is possible to manage a PV string by connecting in series the output stages of the
SPV1020 to guarantee the voltage level required by the specific application.
Maximum voltage for ISV009v1 is 36 V, according to R3/R4 partitioning.
For example, if the application requires 400 V (Vout_tot) then the minimum number of
ISV009v1 to be connected in series (Ns_min) will be:
In order to guarantee the performance of the whole PV string (e.g. in case of shaded
panels), a minimum of redundancy (10%) on Ns_min is suggested.
Also, considering that SPV1020 is a voltage boost controller it is required that maximum
input voltage (Vo of the each PV panel) must be lower than its output voltage. So, maximum
number of devices in series is also limited by the following rule:
PV panel
ISV009v1 application connection
Ns
Doc ID XXXXX Rev 1
_
min
Ns
≥
_
Vout
max
Vout
-
V
P
+
V
P
≤
SPV1001N30
SPV1001N40
_
_
Vout
max
tot
Voc
(STEVAL-ISV009V1)
_
=
tot
400
36
=
12
SPV1020
Vout+
Vout-
AN3392