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Drive 13W Compact Lamp
110 or 220 Vac Input
High-Frequency Operation (34kHz)
Soft Start with Cathode Preheating (45kHz)
Lamp Removal Protection
Burst Mode with Auto Restart
IR51H420 Integrated Half-Bridge
TM
The IRPLCFL1 is intended as a reference
design to be used as development tool to
speed up customers鈥?time to market.
Circuit Schematic
IR51H420
R2
R1
AC1
Vcc
Rt
Ct COM
Vb
Vo
Vt
BR1
C4
R6
AC2
+
C1
N
+
C2
R3
D1
Q1
C6
C8
D2
R4
Q2
D4
C3
+
R5
D6
D5
C9
Fluorescent Lamp
C5
F2
F2
D3
C7
AC1-N = 120 VAC input
AC1-AC2=220 VAC input
C10
F1
L1
F1
Reference Design Data Sheet intended for design information only.
Subjected to changes without prior notice.
1