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| ICE3AR1580VJZ Datasheet, PDF (29/43 Pages) Infineon Technologies AG – Of f -Line SMPS Cur rent Mode Cont rol ler wi th integrated 800V | |||
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CoolSET⢠F3R80
ICE3AR1580VJZ
Functional Description
OLP
detected
VFB
4.5V
OLP
released
Extended OLP
blanking time
Built in 20ms OLP
Input OVP
t
blanking time
VBV
Input OVP fault started( but
overridden by extended blanking
4.5V
OLP time)
Input OVP
detected
Input OVP
released
1.98V
1.91V
0.9V
VVCC
17V
Switching start at the
t
following restart cycle
10.5V
VCS
t
No switching
t
Figure 34: Input OVP during extended blanking time
One typical case happened is that the overload happened first and it follows with the âInput OVPâ feature at the 1st
20ms blanking time. Since the overload protection is still not triggered at the 1st 20ms blanking time period and the
extended blanking time is not running, the input OVP mode will trigger right away.
VFB
4.5V
OLP
detected
OLP
released
Built in 20ms OLP
blanking time
t
Input OVP
VBV
Input OVP
detected
Input OVP
released
1.98V
1.91V
VVCC
17V
Switching start at the
t
following restart cycle
10.5V
VCS
t
No switching
t
Figure 35: Input OVP during first 20ms blanking time
Data Sheet
29
V2.0, 2014-01-20
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