STEVAL-ISV009V1 STMicroelectronics, STEVAL-ISV009V1 Datasheet - Page 21

• 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

AN3392
Normal/MPPT mode
Figure 19. Normal/MPPT mode, DCM vs. CM FSM
In case of DCM, input current could be negligible and its sampled value could be strongly
affected by the noises caused by the switching elements. So, input power is computed as
follow, avoiding the use of the input current:
=
+
2
P
(
tn
)
V
*
Don
( *
Don
D
)
off
In case of CM input power is computed by multiplying the sampled voltage and the sampled
current:
=
P
(
tn
)
V
*
I
Input voltage is sampled by an external resistive partitioning, while the input current is
sampled internally to reduce the number of external components on the application. Here
follows a simple schematic of the input voltage sensing circuitry (see
Chapter 13: External
component selection on page 30
for values of the showed components).
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