STEVAL-ISV006V1 STMicroelectronics, STEVAL-ISV006V1 Datasheet - Page 21

• Manufacturer Part Number: STEVAL-ISV006V1
• Description: IC LINEAR
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISV006V1

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11418

AN3319
Therefore:
For example, assuming Pout = 3 W and Vout = 12 V, then
Voutx = 4 V.
Lower irradiation for one panel, for example on panel 2, causes lower output power, so lower
Vout2 due to the Iout imposed by the topology:
The output voltage required by the load can be provided by the 1
only up to the limit imposed by each of their R1/R2 partitionings.
Some examples can help in understanding the various scenarios assuming that each R1/R2
limits Voutx to 4.8 V.
Example 1:
Panel 2 has 75 % irradiation of panels 1 and 3:
Two SPV1040s (1
panel 2.
Pout
Pout
Vout
Pout
Iout
Vout
Voutx =
Vout
Voutx =
1
2
=
1
2
2
=
=
Warning:
=
Pout
=
Vout
=
=
Pout
Pout
Vout
3
4
3
4
3
1
Poutx
. 0
. 0
Pout
Iout
Vout
*
75
23
1
Vout
=
3
+
3
. 2
=
=
1
Pout
=
12
1
=
75
. 3
1
W
. 0
st
. 0
26
=
1
23
SPV1040 is a boost controller, so Voutx must be higher than
Vinx, otherwise the SPV1040 turns off and the input power is
transferred to the output stage through the integrated P-
channel MOS without entering the switching mode.
2
=
and 3
75
3
4
V
+
. 0
*
=
W
Pout
23
Vout
. 4
rd
A
35
) supply the voltage drop caused by the lower irradiation on
3
3
V
=
Doc ID 18265 Rev 1
. 2
75
W
SPV1040 parallel and series connection
st
and the 3
rd
SPV1040 but
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