16
PD-30-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5.3 IC INFORMATION
Energy Effi cient, Offl ine Switcher with Enhanced Flexibility and Extended Power Range
• Block Diagram
• Pin Arrangement
CLOCK
OSCILLATOR
5.85 V
4.9 V
SOURCE
(S)
S
R
Q
DCMAX
BYPASS/
MULTI-FUNCTION
(BP/M)
+
-
V
ILIMIT
FAULT
PRESENT
CURRENT LIMIT
COMPARATOR
ENABLE
LEADING
EDGE
BLANKING
THERMAL
SHUTDOWN
+
-
DRAIN
(D)
REGULATOR
5.85 V
BYPASS PIN
UNDER-VOLTAGE
1.0 V + V
T
ENABLE
(EN)
Q
115 A
RESET
AUTO-
RESTART
COUNTER
JITTER
BYPASS
CAPACITOR
SELECT AND
CURRENT
LIMIT STATE
MACHINE
OVP
LATCH
1.0 V
D
S
BP/M
S
S
EN
8
5
7
1
4
2
S
6
ILDF0176P0 (TNY176PN)(POWER PCB ASSY: IC501)