1.1.2
Power section
The power section involves the power supply voltage (CN1, pins 4 and 5 for V
CC
, pin 3 for GND), load
connection (a load can be connected between pins CN1.1 and CN1.3 or CN1.2, and CN1.3; both output pins
are connected to the single output channel as shown in Schematic diagrams) and electromagnetic compatibility
(EMC) protection.
Figure 3.
STEVAL-IFP046V1 expansion board: power section components
1.
Overtemperature red LED
2.
Overload red LED
3.
4.
Output channel - green LED
5.
Output and power supply connector
1
2
3
4
5
For EMC:
•
The
transient voltage suppressor (TR1), enabled by closing J3, is placed between V
CC
and
GND tracks to protect the
against surge discharge on the supply rail path up to ±1 kV/2 Ω
coupling;
•
in common mode surge testing, two single-layer capacitors (C1 and C2 - not included) must be soldered at
the predisposed locations;
•
output stages do not require additional EMC protections with respect to the
IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-8 standards.
UM3058
Overview
UM3058
-
Rev 1
page 4/19
