HF01B00/01/02/03/04–OFF LINE HIGH VOLTAGE QUASI RESONANT REGULATOR
Unplug from
Regulation
Occurs Here
Vcc
Start up
Over Voltage
Occurs Here
Normal
operation
main input
Normal
operation
Normal
operation
11.8V
8V
5.5V
Driver
Pluses
Driver
High voltage
current source
On
Off
IFault Flag
OLP Fault
Occurs Here
Normal operation
OTP Fault
Occurs Here
OVP Fault
Occurs Here
Normal operation
Normal operation
Normal operation
Figure 13—Evolution of the Signal in Presence of a Fault
HF01B00/01/02/03/04 Rev. 1.2
www.MonolithicPower.com
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4/9/2013
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