STEVAL-ISF002V1 STMicroelectronics, STEVAL-ISF002V1 Datasheet - Page 26

• Manufacturer Part Number: STEVAL-ISF002V1
• Description: BOARD EVALUATION
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISF002V1

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: *
• Primary Attributes: *
• Secondary Attributes: *
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10422

STEVAL-ISF002V1 hardware description
3.5.7
Figure 22. STEVAL-ISF002V1 - vin zero crossing detection section
26/62
Equation 39
From
Equation 40
Furthermore, out2 of the TSV992 is connected to the MCU that can have information about
the PCF overcurrent occurrence (see
Zero crossing detection of input voltage
From PFC_SYNC, information can be obtained on the zero crossing of the input voltage as
shown in
Equation 4
Figure 23
and
.
Equation 7
PFC_Iac
Doc ID 16854 Rev 1
I
RSense
, out2 of the TSV992 is high if:
<
Figure 43
<
. 3
. 0
R19
035714
212121
R20
+
R20
).
+
A
R21
+
=
R21
14
.
31
⋅
5
A
V
UM0877