Datasheet

WPMDL110xxx1S / 17301xx78
MagI
3
C Power Module
FDSM – Fixed Step Down Regulator Module
We-online.com Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© November 2015 9/12
PROTECTIVE FEATURES
Over temperature protection (OTP)
The junction temperature of the MagI³C Power Module should not be allowed to exceed its maximum ratings. Thermal
protection is implemented by an internal Thermal Shutdown circuit which activates at 165°C (typ.), causing the device to
enter a low power standby state. In this state the MOSFET remains off causing V
OUT
to fall. Thermal protection helps to
prevent catastrophic failures from accidental device overheating. When the junction temperature falls back below 165° V
OUT
rises smoothly and normal operation resumes.
Over current protection (OCP)
For protection against load faults, the MagI³C Power Module incorporates cycle-by-cycle current monitoring. During an
overcurrent condition the output current is limited and the output voltage is reduced. When the overcurrent condition is
removed, the output voltage returns to the nominal voltage.
Output overvoltage protection (OVP)
When the output voltage goes above approx. 109% of the specified output voltage the high side MOSFET will be forced off
until the output voltage falls below approx. 107% of specified output value.
Short circuit protection (SCP)
The short circuit protection is realized via cycle by cycle current monitoring. Recovery from short circuit protection mode
occurs during the switching cycle following the removal of the short circuit condition.