ST STEVAL-IFP043V1, User Manual

Page: 4 / 17

1.1.2 Power section
The power section involves the power supply voltage (CN1, pin 2 and 3 for V
CC
, pin 4 for GND), load connection
(between CN1 pins 1-4 and CN1 pins 5-4) and electromagnetic compatibility (EMC) protection.
Figure 3. STEVAL-IFP043V1 expansion board: power stage components
1. Output channel 1 - fault red LED
2. Output channel 2 - fault red LED
3. Output channel 1 - green LED
4. Output channel 2 - green LED
5. IPS2050HQ
6. Output and power supply connector
6
4
3
5
2
1
For EMC:
•
The SM15T39CA transient voltage suppressor (TR1), enabled by closing JP3, is placed between V
CC
and
GND tracks to protect the IPS2050HQ against surge discharge on the supply rail path up to ±1kV/2Ω
coupling;
• in common mode surge testing, two single-layer capacitors (C1 and C2 - not included) must be soldered at
the predisposed locations;
• the IPS2050HQ output stages do not require additional EMC protections with respect to the IEC61000-4-2,
IEC61000-4-3, IEC61000-4-5 standards.
UM3049
Overview
UM3049 - Rev 1
page 4/17