© by SEMIKRON / 2020-05-25 / Technical Explanation / SKYPER
®
12 PV
PROMGT.1026/ Rev.7/ Template Technical Explanation
Page 21/37
5.
Protection features
5.1
Failure management
The SKYPER
®
12 PV driver core detects several different error events on primary and secondary side. The
driver’s reaction on those events depends on the selected error mode, as described in chapter 4.8. The
following table covers the possible error routine scenarios.
Table 7: SKYPER
®
12 PV | Failure management
Conditions
Reaction
Error event
Occurrence
CFG_ERR
nERR_OUT
Outputs
Turn-off path
Undervoltage of
power supply
primary side
HIGH/LOW
LOW
immediately
OFF and locked,
immediately, until reset
Standard
nERR_IN at
low-level
primary side
HIGH
LOW
immediately
OFF,
with next turn-off signal at
the corresponding input
Locked
immediately
OFF & locked until reset
Standard
LOW
LOW
immediately
OFF and locked,
immediately, until reset
Standard
Undervoltage of
power supply
secondary side
HIGH
LOW
immediately
OFF,
affected channel
immediately;
2
nd
channel with next turn-
off signal at the
corresponding input
Locked
immediately
OFF & locked until reset
Soft Off
affected channel
Standard
not affected
channel
LOW
LOW
immediately
OFF and locked,
immediately, until reset
Short circuit
detection
(DSCP)
secondary side
HIGH
LOW
immediately
OFF,
affected channel
immediately;
2
nd
channel with next turn-
off signal at the
corresponding input
Locked
immediately
OFF & locked until reset
Soft Off
affected channel
Standard
not affected
channel
LOW
LOW
immediately
OFF and locked,
immediately, until reset
nERR_IN at
low-level
secondary side
HIGH
LOW
immediately
OFF,
affected channel
immediately;
2
nd
channel with next turn-
off signal at the
corresponding input
Locked
immediately
OFF & locked until reset
Soft Off
affected channel
Standard
not affected
channel
LOW
LOW
immediately
OFF and locked,
immediately, until reset
