STMicroelectronics STEVAL-IHT008V1 User Manual page 18

STEVAL-IHT008V1 power supplies and typical
consumption
For
(500 µF output DC
extra current sunk from the output voltage when one ACS switch is ON. This
means that for a zero current, a current close to 20 mA is already sunk from the
VCC_AC supply. This is not the case for the VCC_INS output.
The maximum VCC_AC voltage is reached when the SMPS 15V_DC output is loaded to
the maximum output current (500 mA), while only one AC switch is ON. Indeed if more
ACS switch gate currents are sunk from VCC_AC, this level decreases.
Figure 12: Typical output characteristics of the 5 V and 15 V positive supplies (5V_DC /
Figure 13: Typical output characteristics of the 5 V negative supply (VCC_AC) and 5 V
18/37
Figure 14: "Inrush current during STEVAL-IHT008V1 startup on 230 V line
capacitor)", the output current of the horizontal axis gives the
insulated supply (VCC_INS)
DocID029048 Rev 1
15V_DC)
UM2027