Datasheet

Rev. J 06/13
2
LNK302/304-306
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Figure 2a. Functional Block Diagram (LNK302).
PI-3904-032213
CLOCK
JITTER
OSCILLATOR
5.8 V
4.85 V
SOURCE
(S)
S
R
Q
DC
MAX
BYPASS
(BP)
+
-
V
I
LIMIT
LEADING
EDGE
BLANKING
THERMAL
SHUTDOWN
+
-
DRAIN
(D)
REGULATOR
5.8 V
BYPASS PIN
UNDERVOLTAGE
CURRENT LIMIT
COMPARATOR
FEEDBACK
(FB)
Q
6.3 V
1.65 V -V
T
PI-2367-032213
CLOCK
JITTER
OSCILLATOR
5.8 V
4.85 V
SOURCE
(S)
S
R
Q
DC
MAX
BYPASS
(BP)
FAULT
PRESENT
+
-
V
I
LIMIT
LEADING
EDGE
BLANKING
THERMAL
SHUTDOWN
+
-
DRAIN
(D)
BYPASS PIN
UNDERVOLTAGE
CURRENT LIMIT
COMPARATOR
FEEDBACK
(FB)
Q
6.3 V
RESET
AUTO-
RESTART
COUNTER
1.65 V -V
T
CLOCK
REGULATOR
5.8 V
Figure 2b. Functional Block Diagram (LNK304-306).