MC45 Hardware Interface Description
P R E L I M I N A R Y
MC45_HD_01_V00.02a
Page 44 of 90
12.08.2002
3.3.4.4 Shutdown in the event of overvoltage
Overvoltage protection is implemented in the PSU-ASIC. If the supply voltage raises to
V
BATT+
> 5.8V MC45 switches off automatically. In contrast to undervoltage shutdown
·
there is no URC function available
·
and the module turns off immediately, i.e. loss of data cannot be avoided.
Remark: The PA is always connected to the supply voltage, also in case of an emergency
switch off. A higher supply voltage will destroy the PA.