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- SMPS Board -
IC901 STR-F6138-LF1352
CURRENT
MIRROR
OVER
CURRENT
PROTECT
2
LOGIC
OVER
FEED
CURRENT
BACK
PROTECT
2
1
IC921 STR-V153
OVP
+
−
TSD
DRIVE
POWER
MOS FET
BLANKING
OCP
+
−
BUFFER
1 2 3
4
OSC
DELAY
DELAY
BOTTOM
SKIP
LOGIC
OVER
INH
INH
CURRENT
2
1
PROTECT
1
SWITCHING
REGULATOR
BLOCK
2
3
INTERNAL
DELAY
LATCH
OLP
+
−
BURST
DISCHARGE
5
6 7
LATCH
OVER VOLTAGE
THERMAL
PROTECT
SHUT DOWN
INTERNAL BIAS
UNDER VOLTAGE
4
UVLO
+
−
BIAS
PRC LATCH
Q S
+
−
R
+
−
–
+
FB
STR-KS370
OVER LOAD
PROTECT
LOCK OUT
5
OFF TIMER
8
37
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