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OB3328
High Performance CCFL Controller Full Bridge
On-Bright Electronics
OB3328 Datasheet PDF : 14 Pages
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Functional Block Diagram
OB3328/OB3328N
High Performance CCFL Controller
Full Bridge
CS 1
fide
CMP/SST 2
na
STIME 3
Bo
VS 4
l
to
RI 5
ntia
GND 6
fide
GATE-P2 7
Peak
Detect
V_ref_dim
+
EA
-
PWM
Generator
HF OSC
CS_th
-
+
3.0uA
Lamp Fail
Safe
Functions
+
V_th
-
CLK RI
V_ref_dim
Peak
Detect
Input Logic
RI
Striking Control
GND
Soft Switching & Output Control
Analog & Burst
Dimming
POR
VDD UVLO
Bandgap/
Reference
V_ref I_ref PG
16 RT
15 ENA
14 DDIM
13 ADIM
12 BF/DMOD
11 VDDA
10 GATE-N1
on
GATE-N2 8
Gate Driver
On-Bright
C
Figure2: OB3328 Functional Block Diagram
9 GATE-P1
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OB_DO C_DS_2800
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