WPMDH1100601 / 171010601
MagI3C Power Module
VDRM – Variable Step Down Regulator Module
PROTECTIVE FEATURES
Output Overvoltage Protection (OVP)
The voltage at the FB is compared to a 0.8V internal reference while the overvoltage protection (OVP) has a threshold of
0.92V. If FB rises above this limit, the on-time is immediately terminated. It can occur if the input voltage is increased with a
dV
very high IN or if the output current is decreased with a very OUT. Once OVP is activated, the high-side MOSFET on-times
dt dt
dI
will be inhibited until the condition clears. Additionally, the low-side MOSFET will remain on until the inductor current falls to
zero. Then both high-side and low-side MOSFETs are turned off as long as the overvoltage condition is not removed (see
figure below).
we-online.com
Würth Elektronik eiSos GmbH & Co. KG – Data Sheet Rev. 1.0
© September 2017
35/54
WURTH [ WURTH ELEKTRONIK GMBH & CO. KG, GERMANY. ]
