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參數(shù)資料
| 型號(hào)： | OZ962 |
| 廠(chǎng)商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High-Efficiency Inverter Controller |
| 中文描述： | 高效率逆變控制器 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大小： | 51K |
| 代理商： | OZ962 |
OZ962
03/01/00
Copyright 1999 by O
2
Micro
OZ962-SF-2.7
All Rights Reserved
Page 1
U.S. Patent #5,619,402
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
TYPICAL APPLICATION CIRCUIT
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.
Figure 1. Typical Floating Secondary Application
Circuit
C1
22u
25V
-
+
F1
1A Fast Fuse
VDD (+12V)
ENA
GND
CN1
C3
330p
R1
220K
R2
10K
R3
5.1K
C2
0.1u
R6
30
R8
0.5
R13
100
R12
750
1.0K
R4
15K
R7
100K
C8
0.22u
C5
C6 2.2u
50V
+
C7
C4
0.1u
220p
68p
3KV
-
*
*
2200T
33T
3.5W
SI4559EY
4
1
7,8
5,6
3
U2
R5
10K
R14
OZ962G
OVP
REF
NC
SCP
ADJ
FB
CMP
GND
VDD
RT
CT
CLK
ENA
NDR
PDR
SST
1
2
3
4
5
6
7
8
9
16
15
14
13
12
11
10
U1
2
Q2
Q1
R9
200K
R10
100
C9
.01u
R11
1M
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相關(guān)代理商/技術(shù)參數(shù) |
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| OZ962R | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:High-Efficiency Inverter Controller |
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