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PDF OZ962 Data sheet ( Hoja de datos )
| Número de pieza | OZ962 | |
| Descripción | High-Efficiency Inverter Controller | |
| Fabricantes | ETC | |
| Logotipo |  |
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OZ962
High-Efficiency Inverter Controller
FEATURES
• Single-stage power conversion, input voltage
range of 5V to 18V
• Reduces the number of components and board
size by 30% compared with conventional design
• Supports both floating and grounded secondary
designs
• 90% efficiency vs. typical 75% efficiency of
conventional designs
• Internal open-lamp and short-circuit protections
• Wide dimming range
• Supports synchronization among multiple
inverter modules
• Reliable 2 -winding transformer design,
eliminates arcing problems
• Constant frequency, symmetrical, sinusoidal
drive
ORDERING INFORMATION
OZ962R - 16 lead TSSOP
OZ962G - 16-pin plastic SOP
GENERAL DESCRIPTION
The OZ962 is a unique high-efficiency, CCFL
backlight controller. It generates symmetrical,
near sinusoidal output voltage and current
waveforms for driving a CCFL backlight. The
OZ962 operates in a single, constant frequency,
pulse-width-modulation (PWM) mode. Typical
operating frequency ranges between 30 KHz to
100 KHz, depending on the CCFL and the
transformer’s characteristics.
Operating in a PWM push-pull manner, the
transformer in the OZ962 backlight inverter
requires only one primary winding and one
secondary winding, with the secondary winding
requiring no fold-back treatment.
The OZ962 is available in both 16-pin SOIC and
TSSOP packages. It is specified over the
commercial temperature range: 0 oC to +70 oC.
TYPICAL APPLICATION CIRCUIT
F1
VDD (+12V) 1A Fast Fuse
ENA
GND
CN1
R2
10K
R3
5.1K
+ C1
- 22u
25V
R1 R9
220K 200K C9
.01u
C2 C3
0.1u
330p
1
REF
U1
16
VDD
2 OZ962G 15
OVP
RT
3
NC
14
CT
4
SCP
13
CLK
5
ADJ
12
ENA
6
FB
11
NDR
7
CMP
10
PDR
8
GND
9
SST
R11 R4
1M 15K
R5
10K
C5
220p
C4
0.1u
R10
100
C8
0.22u
R7
100K
R6
30
3 U2
Q2 *
33T
4 C6 2.2u
5,6 50V
SI4559EY
-+
7,8
2
Q1
1
R8
0.5
R12
750
C7
* 68p
2200T 3KV
3.5W
R14
1.0K
R13
100
Figure 1. Typical Floating Secondary Application
Circuit
03/01/00
©Copyright 1999 by O2Micro
OZ962-SF -2.7
All Rights Reserved
Page 1
U.S. Patent #5,619,402
1 page  
PACKAGE INFORMATION
E E1
OZ962
A2 A1
A
TSSOP-16
PACKAGE
1
D
b
e
b
c c1
b1
Gauge Plane
θ2
R1
R
θ1
L
θ3
L1
DIM
INCHES
MILLIMETERS
MIN MAX MIN MAX
A
- 0.043 -
1.20
A1 0.002 0.006 0.05 0.15
A2 0.031 0.041 0.80 1.05
L 0.020 0.030 0.45 0.75
D-
- 4.90 5.10
E1 0.169 0.177 4.30 4.50
E 0.252BSC
6.40BSC
R 0.004 - 0.09 -
R1 0.004
-
0.09
-
b 0.007 0.012 0.19 0.30
b1 0.007 0.010 0.19 0.25
c 0.004 0.008 0.09 0.20
c1 0.004 0.006 0.09 0.16
L1 0.039REF
1.0REF
e 0.026BSC
0.65BSC
θ1 0° 8° 0° 8°
θ2 12°REF
12°REF
θ3 12°REF
12°REF
OZ962-SF -2.7
Page 5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet OZ962.PDF ] | |
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