LYT0002/0004-0006
BYPASS
(BP)
DRAIN
(D)
REGULATOR
5.8 V
BYPASS PIN
UNDERVOLTAGE
+
-
5.8 V
4.85 V
CURRENT LIMIT
COMPARATOR
+
-
6.3 V
V
ILIMIT
JITTER
CLOCK
DCMAX
THERMAL
SHUTDOWN
FEEDBACK
(FB)
OSCILLATOR
1.65 V -VT
S
Q
Q
R
LEADING
EDGE
BLANKING
SOURCE
(S)
PI-3904-032213
Figure 3a. Functional Block Diagram LYT0002.
BYPASS
(BP)
DRAIN
(D)
REGULATOR
5.8 V
FAULT
PRESENT
AUTO-
RESTART
COUNTER
BYPASS PIN
UNDERVOLTAGE
6.3 V
+
CLOCK
5.8 V
4.85 V
CURRENT LIMIT
COMPARATOR
-
RESET
+
-
V
ILIMIT
JITTER
CLOCK
DCMAX
THERMAL
SHUTDOWN
FEEDBACK
(FB)
OSCILLATOR
1.65 V -VT
S
Q
Q
R
LEADING
EDGE
BLANKING
SOURCE
(S)
PI-2367-032213
Figure 3b. Functional Block Diagram LYT0004-0006.
3
www.powerint.com
Rev. A 06/13